24. When density decreases, the number of
molecules in a volume
A increases.
B decreases
C stays the same
D varies

Answers

Answer 1
The answer is A. Increase

Related Questions

what are the products for the following equation?

LiBr + F -> ​

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

Here's the balanced chemical equation for above reaction ~

[tex]\qquad \sf  \:LiBr + F \rightarrow Li F + Br[/tex]

Here, fluorine is more more more reactive than Bromine, therefore it replaces Bromine from its compound and forms Lithium floride.

The Scotch broom is an invasive species in California, Oregon and Washington. These shrubs grow quickly after areas that have been cleared of
trees and inhibit reforestation by out-competing native seedling trees. These plants developed a mutation that causes their seed to burst from
their shell when touched by passing animals. As animals brush past these plants, the black dried pods of the Scotch broom explode with a sharp
pop, scattering seeds away from the parent plant.
Which statement below best explains why the Scotch broom is able to out-compete the native plants in that area?
A. Relying on animals to disperse the seeds always results in better reproductive success than other methods of seed dispersion.
B. Specialized seed pods allow seeds to be dispersed farther and into less crowded areas promoting reproductive success.
C. The crackling sound of seed pods exploding promotes reproductive success by attracting the animals that are responsible for scattering
seeds.
D. Genetic mutations have caused the plant to be more resistant to cold temperatures allowing them to survive and reproduce all year
long.

Answers

Based on the illustration, the statement that best explains why the Scotch broom is able to outcompete the native plants in the area would be the specialized seed pods that allow seeds to be dispersed farther and into the less crowded areas.

Reproductive success

Different organisms have different ways of behaving to ensure the survival of their propagules or offsprings.

In the case of the Scotch broom, the ability of the pods holding the seeds to burst open and catapult the seeds far away from the parent plant is a reproductive strategy to ensure that their seeds are well dispersed.

By doing so, the propagules of the plant will reach new areas where they do not exist before and as such, able to spread quite quicker than the native plants.

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How does pathogen infection result in the occurrence of fevers in a host?


Edema caused by the pathogen raises the body temperature..

The pathogens break down the host's hypothalmus..

Pyrogens produced by the pathogen alter the host thermostat.

The interaction between PAMPs and PRPs causes a respiratory burst.

Answers

Answer:

The answer is Edema caused by the pathogen raises the body temperature. :)

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chlorine water exposed to sunlight equation?

Answers

Answer:

Cl2 (aq) + 2H2 O HOCl(aq) + Cl-(aq) + H2O Equation 1 The hypochlorous acid dissociates almost immediately into hydrogen and hypochlorite ions (OCl-).

Explanation:

what are the basic elements of environment​

Answers

Answer:

the basic elements of environment are lithosphere, hydrosphere, atmosphere and biosphere.

Explanation:

This type of intermolecular force relates to the
big difference in the electronegativities. It exists
when N, O or F atom attracts with hydrogen
atom. Medium strength of attraction is
exhibited

Answers

Hydrogen bonds are a special type of dipole-dipole attraction that results when hydrogen is bonded to one of the three most electronegative elements: F, O, or N.

The type of intermolecular force relates to the big difference in the electronegativities and is known as hydrogen bonding.

What are intermolecular forces?

Intermolecular forces may be defined as the mechanism that mediates the interaction between the atoms of the molecules. It significantly includes the electromagnetic forces of attraction and repulsion between the atoms.

Some examples of intermolecular forces include London-dispersion force, dipole-dipole interaction, van der Waals interaction, hydrogen bonds, etc. Each one of them possesses a different set of characteristic properties distinctly. Some types of forces are also present in the body of living organisms.

Hydrogen bonding is a characteristic kind of interaction that remarkably includes dipole-dipole attraction between the most electronegative elements like Nitrogen, Oxygen, fluorine, etc., and the hydrogen atom.

Therefore, hydrogen bonding is a type of intermolecular force relates to the big difference in the electronegativities.

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What type of probes physically land on the surface of a planet or moon?

Answers

Answer:

Here are three types of probes that land on space physically. Interplantery, orbiters, and landers.

Explanation:

These are the ones that collect data and other stuff from space.

Cyclohexane can be manufactured from hexane as shown in the equation.
C6H14 C6H12 + H2
Calculate the mass of cyclohexane that can be made from 258 g of hexane.
[Mr
of cyclohexane = 84

Answers

Mr Hexane = 86 g/mol

mol hexane = 258 : 86 = 3

mol cyclohexane = mol hexane = 3

mass cyclohexane = 3 x 84 = 252 g

ID: A
8. Gold is reacted with chlorine gas according to the reaction 2 Au + 3Cl2 → 2 AuClz. Use the data in the table
to determine the percent yield of gold chloride.
Mass of Gold
Mass of Chlorine Theoretical Yield Actual Yield
39.4 g
?
35.2 g
21.3 g
a. 60.7%
b. 54.1 %
c. 58.1 %
d. 51.4 %
9. How many moles of Al would be produced from 20 moles of AlO3?

Answers

A. The percentage yield of gold chloride is 58%

B. The number of mole of Al produced is 40 moles

A. How to determine the percentage of gold

2Au + 3Cl₂ → 2AuCl₃

Molar mass of Au = 197 g/mol

Mass of Au from the balanced equation = 2 × 197 = 394 g

Molar mass of Cl₂ = 2 × 35.5 = 71 g/mol

Mass of Cl₂ from the balanced equation = 3 × 71 = 213 g

Molar mass of AuCl₃ = 197 + (3×35.5) = 303.5 g/mol

Mass of AuCl₃ from the balanced equation = 2 × 303.5 = 607 g

We'll begin by determining the limiting reactant

From the balanced equation above,

394 g of Au reacted with 213 g of Cl₂

Therefore,

39.4 g of Au will react with = (39.4 × 213) / 394 = 21.3 g of Cl₂

From the above, both Au and Cl₂ are limiting reactant.

Next, we shall determine the theoretical yield.

From the balanced equation above,

394 g of Au reacted to produce 607 g of AuCl₃

Therefore,

39.4 g of Au will react to produce = (39.4 × 607) / 394 = 60.7 g of AuCl₃

Thus, the theoretical yield of AuCl₃ is 60.7 g

Finally, we shall determine the percentage yield.

Actual yield = 35.2 g

Theoretical yield = 60.7 g

Percentage yield =?

Percentage yield = (Actual / Theoretical) × 100

Percentage yield = (35.2 / 60.7) × 100

Percentage yield = 57.99%

Percentage yield ≈ 58%

B. How to determine the mole of Al produced

Balanced equation

2Al₂O₃ → 4Al + 3O₂

From the balanced equation above,

2 moles of Al₂O₃ produced 4 moles of Al

Therefore,

20 moles of Al₂O₃ will produce = (20 × 4) / 2 = 40 moles of Al

Thus, 40 moles of Al were obtained from the reaction.

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An envelope could be a source of DNA evidence.

True

False

Answers

Answer:

True

Explanation:

DNA can be extracted from bite marks, cigarette buds, postage stamps on envelopes, and envelope flaps for DNA analysis.

Answer:

false. a envelope is what the DNA evidence goes in

Explanation:

What amount of heat is required to increase the temperature of 75.0 g of water from 22.3˚C to 36.1˚C?

Answers

Answer:

4332.5 j

Explanation:

Specific heat of water is 4.186 j /g-C

4.186 j / g-C  * 75 g  * (36.1-22.3 C) =

The parmo is a dish made from breaded meat and cheese sauce that originated in which english town?.

Answers

Answer:

Middlesbrough, North Yorkshire

,,Explanation:

The interstitial fluid is generally poor, while the plasma is generally rich in ---------. A. Protein B. Sodium and chloride ions C. Hydrogen ions D. Carbohydrates

Answers

Answer:

B Hydrogen Ions is answer

complete and balance the following equation b. na2 co3​

Answers

the question isnt clear where are the products ir the reactants like __ = ___ + ___

What is the most significant solute in determining the distribution of water among fluid compartments

Answers

Answer:

Sodium  (Na+)

Explanation:

Volume status is regulated through the monitoring of systemic solute per unit volume, or osmolarity. Sodium, the most prominent electrolyte 'solute' in extracellular fluid, is used to monitor extracellular osmolarity. A disproportionate loss of water relative to sodium results in a concentrating osmolar effect.

Pregnant women are often cautioned against cleaning cat litter boxes. This is because Toxoplasma, an intestinal parasite of cats, can be transmitted from infected feces to the expectant mother and ultimately to the fetus. For these reasons, Toxoplasma is considered
....
a noninfectious disease.

a communicable disease.

an addictive disease.

a nosocomial disease.

a zoonotic disease.

a necrotizing disease..

Answers

Answer:

A communicable disease

Explanation:

Diseases that can be transferred are known as communicable diseases.

How many atoms in total are present in sucrose C12H2011 weighs 1.4 mg

Answers

Answer:

2.46×10²¹atoms

Explanation:

[tex]molar \: mass \: of \: the \: sucrose = 12(12) + 22(1) + 11(16) \\ = 144 + 22 + 176 \\ = 342g {mol}^{ - 1} \\ mole = \frac{1.4 \times {10}^{ - 3} }{342} \\ = 4.09 \times {10}^{ - 6} \\ number \: of \: atoms = 4.09 \times {10}^{ - 6} \times 6.022 \times {10}^{23} \\ = 2.46 \times {10}^{21} atoms[/tex]

What is the pH of a 4.5 x 10^-3M HI solution?
A) 0.1
B) 4.8
C) 3.2
D) 2.4

Answers

The answer would be D-2.4

Which is older? Dinosaurs or Grasshoppers?

Answers

Answer:

i think grass hopper

Explanation:

answer my question i am am brainiest

HELP ANYONE PLEASE ASAP TYY!!!

Answers

In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

i hope this helps :)

Why is carbon dioxide a necessary part of the atmosphere.

Answers

Answer:

it gives plants life and plants give us oxygen

ANSWER FAST PLS ILL GIVE BRAINLY 5. What are animals called that make their homes underground?
grazers
reptiles
burrowers
meat-eaters

Answers

Answer:

burrowers

Explanation:

It’s c I just took the test

A buffer solution is prepared by adding NH4Cl to a solution of NH3 (ammonia).

NH3(aq) + H2O(I) = NH4+(aq) +OH-(aq0

What happens if Ca(NO3)2 is added?

Shifts to reactants, remain the same, shifts to products.


Please HELP!

I watched the video, but I still don't get it!

I don't know how this works

Answers

Answer:

Remains the same

Explanation:

I just got it right on Acellus!

which molecule can't be exist?
A)NCl3 B)OF6 C)ONF3 D)PCl3

Answers

Answer:

OF6

Explanation:

Oxygen and fluorine have almost the same electronegativity, so oxygen isn't able to donate enough electron density to fluorine to form OF6. Atomic size. There isn't enough room around an oxygen atom for six fluorine atoms.

:-befrank

If one 330 mL Coca-Cola contains 170 grams of dissolved C*O_{2} how many H^ + ions are made if 70% of the dissolved C*O_{2} reacts completely with water until it is a simple carbonate ion (CO 3 ^ 2- ) ?
Please help me!!!

Answers

Answer:

bu bir kimya sorusu sanırim

Inside a car that was at STP, a 1.33L bottle warms up to 102.31oC. If the volume of the bottle remains constant, what is the pressure, in atm, inside the hot water bottle

Answers

so 68 + 83 is 182 easy done

3. Which of the following statements is true?
a. A lithium ion has a 1+charge because it gained
one electron.
b. A magnesium ion has a 2-charge because it
lost two electrons.
c. A sulfide ion has a 2-charge because it gained
two electrons.
d. A chloride ion has a 1+ charge because it gained
one electron.
e. An aluminum ion has a 3-charge because it lost
three electrons.

Answers

c. A sulfide ion has 2- charge because it gaines two electrons

thia statement is true.

If 162.35 g aluminum hydroxide are dissolved in 6750 mL of solution, what is the concentration of the solution?

Answers

If 162.35 g aluminum hydroxide are dissolved in 6750 mL of solution, the concentration of the solution is 0.308M

How to calculate concentration?

The concentration of a solution can be calculated using the following formula:

Molarity = no of moles ÷ volume (L)

However, the number of moles in 162.35g of Al(OH)3 must be calculated as follows:

Molar mass of Al(OH)3 = 78g/mol

no of moles = 162.35g ÷ 78mol

no of moles = 2.08mol

Molarity = 2.08mol ÷ 6.75L

Molarity = 0.308M

Therefore, if 162.35 g aluminum hydroxide are dissolved in 6750 mL of solution, the concentration of the solution is 0.308M.

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1. -A mixture of aluminum metal and chlorine gas reacts to form aluminum chloride (AlCl3): 2Al(s) +
3Cl2(g) → 2AlCl3(s). How many moles of aluminum chloride will form when 5 moles of chlorine gas react
with excess aluminum metal?

Answers

Answer:

3.33 moles

Explanation:

We know that our limiting reactant is chlorine so we just have to figure out how much of the product aluminum chloride (AlCl3) would be formed from 5 moles of chlorine gas. As we can see in the balanced equation, the mole ratio of chlorine gas (Cl2) to aluminum chloride is 3:2 based on the coefficients of the species. All you have to do from here is divide the amount of moles of chlorine gas by its own coefficient and then multiply the number you receive by the coefficient of AlCl3.

5/3=1.66

1.66*2=3.33

If 40mL of 2.50M HCl neutralizes 500ml. of KOH, what is the molarity of the KOH?

Answers

The molarity of the 500 mL KOH solution needed to neutralize the 40 mL of 2.50 M HCl is 0.2 M

Balanced equation

HCl + KOH —> KCl + H₂O

From the balanced equation above,

The mole ratio of the acid, HCl (nA) = 1

The mole ratio of the base, KOH (nB) = 1

How to determine the molarity of KOH Volume of acid, HCl (Va) = 40 mLMolarity of acid, HCl (Ma) = 2.5 MVolume of base, KOH (Vb) = 500 mL Molarity of base, KOH (Mb) =?

MaVa / MbVb = nA / nB

(2.5 × 40) / (0.15 × Vb) = 1

100 / (Mb × 500) = 1

Cross multiply

Mb × 500 = 100

Divide both side by 500

Mb = 100 / 500

Mb = 0.2 M

Thus, the molarity of the KOH solution needed is 0.2 M

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Other Questions
African American Legislators Elected from South Carolina to the US House of Representatives Name Year First Elected Joseph Hayne Rainey 1869 Robert Carlos De Large 1871 Robert Brown Elliott 1871 Richard Harvey Cain 1873 Alonzo Jacob Ransier 1873 Robert Smalls 1875 Thomas Ezekiel Miller 1889 George Washington Murray 1893 James Enos Clyburn 1993 Timothy Scott 2011 Considering the information provided in the table, what is the most likely reason for the 100-year gap between the elections of George Washington Murray and James Enos Clyburn to the US House of Representatives?A) There were no qualified African Americans running for political office from the 1890s until the 1990s. Eliminate B) The 15th Amendment allowed African Americans the right to vote, but it specifically denied the group the right to run for political office. C) Following Reconstruction, many state governments, including South Carolina, took part in measures to prevent African Americans from participating politically. D) Following Reconstruction, the United States Constitution was amended, and the document established a limit on the number of African Americans allowed in the US House of Representatives. Businesses that offer flexible hours allow their workers to arrive at work whenever they feel like it. please select the best answer from the choices provided t f The constraint on deposit creation related to the willingness of consumers, businesses, and governments to borrow the money that banks make available is related to ______. Please help me on this Please help rank the electric potential energy of the charged particles from highest to lowest. a. 1,2,3,4b. 2,3,1,4c. 4,2,3,1 d, 1,3,2,4 Conjuguez les verbs au pass compos. Carbon 14 decays to Carbon 12 and has a half-life of 5730 years. If a fossil is analysed and it has 5 grams of Carbon 14 and 15 grams of Carbon 12, how old is the fossil? By the time the Ottoman Turks captured Constantinople in 1453, most of the Byzantine Empire had already fallen. Why did the Ottomans believe it was important to take Constantinople? A. The city's prisons held many Muslim inmates. B. The city was a center of Asian commerce and finance. C. The city was a symbol of Christian fame and power. D. The city's library held sacred Muslim texts. Solve (2x + 1) (2x + 6) - 7(x - 2) = 4(x + 1)(x - 1)-9x Which of the following are examples of a renewable resource? Choose ALL that apply.coalsunlightnatural gaswindnuclear powerbiomasspetroleumplants (trees, cotton, corn) i need help please What Should I wear for 60's day at school? Hi, I need help. What is 4 1/12 + 5 3/12? How do I find the lengths of JK and JM? Which of the following is NOT a statistical question?A) How many pets are owned by my uncle?B) How many pets are adopted in a pet store each week?C) How many pets are owned by the individual teachers in my school?D) How many pets are owned by the individual students in a karate class Which values of m and b will create a system of equations with no solution? choose 1 options. Which real-life data set has a distribution that is skewed right?a. prices of movie ticketsb. height of adults in town c. salaries of employees at a large company d. ages of students im a high school algebra class Whats the maximum amount of time someone can serve as president?. Read the passages to answer the questions and give your best answers.Questions:Which sentence BEST explains why the author of "The Hardy Live Oak" says that the live oak trees are "a treasure in hot places with harsh sunny weather"?A.They provide shade in the summer heat.B.They also provide food for many animals.C.Live oak trees just blend into the landscape.D.Each live oak tree can produce thousands of acorns.Which of these is a main idea developed in BOTH passages?A.Insect pests can cause terrible damage to full-grown oak trees.B.The features of oak trees benefit the places where they grow.C.Oak trees provide a very important food source for animals.D.The height of an oak tree is its most important feature.First Passage: The Northern Red OakThe northern red oak is a grand-looking tree. It can grow as high as 75 feet tall. The fall season brings shorter days and cooler temperatures. Fall also brings changes to the leaves of the northern red oak. Leaves turn from green to shades of yellow, orange, and red, which is an amazing sight. It makes the northern red oak an eye-catching stand out among other trees in the oak family.In summer, the gray rough branches of the northern red oak grow long and wide. This is the season when branches can become overly long and heavy. The weight of the branches' leaves adds even more pounds. If the growth of the tree is not managed, the entire appearance of the tree can be changed. Early trimming helps groom the tree and keeps it from looking like a rounded triangle by summer's end.Both the size and the shape of the northern red oak's leaves are especially interesting. It is easy to find leaves that are larger than a man's hand. They often have 8 or more pointed fingers. That makes northern red oak leaves look like large, flattened evergreen trees.Residents in the Midwest especially enjoy the beauty of their northern red oaks in October. A common sight is to see people walking or relaxing under them. They gaze up, watching the colored leaves dance in the cool fall breeze, knowing that winter will soon come to take the leaves away.Second Passage: The Hardy Live OakThe live oak tree is one of the toughest trees found in the United States. It is not a tall tree. It grows only 30 to 40 feet high. But its branches are broad and strong. The branches make up for the tree's rather short height. How? The branches stretch out from the trunk like thick arms on a giant. The leaves on the branches are simple. They are oval in shape. They glisten in the sun. Most importantly, live oak leaves are always there. Live oaks stay green all year round.The live oak is also a fast growing tree. It is often planted in the lawns of new houses. This lets people living in the house have shade in just a few years. However, the owner of the tree needs to keep the lower branches trimmed. If the lower branches are not trimmed, over time the lower tree limbs will grow downward toward the ground. These branches will seem to almost slither like a snake. In time, they will be only inches above the ground. They will also spread out over the lawn for up to 25 feet from the trunk of the tree.The live oak tree is popular for a very important reason. It can live in very hot weather. Strong sunlight does not kill it. People in the southern United States see so many live oaks that they no longer really notice them. Live oak trees just blend into the landscape. Yet, live oaks contribute to the landscape in many ways. They provide shade in the summer heat. They also provide food for many animals. Each live oak tree can produce thousands of acorns. Squirrels are just one type of animal that scurries to feast on the little brown nuts. Live oaks are certainly a treasure in hot places with harsh sunny weather. Imagine you are studying a newly discovered animal species. You discover large numbers of only very young juveniles of the species inhabiting the same area. What can you conclude about the reproductive behaviors of the species? Why?