Answer:
The answer to your question is D. carbon dioxide
Explanation:
Light-DEPENDENT → The light-dependent reactions convert light energy into chemical energy.
What are the sources of petrochemicals
Answer:
Petrochemicals are chemical products derived from petroleum, although many of the same chemical compounds are also obtained from other fossil fuels such as coal and natural gas or from renewable sources such as corn, sugar cane, and other types of biomass.
Answer:
The sources of petrochemical are: fossil fuel such as coal and natural gases or from renewable sources such corn, sugar, cane and other types of biomass .
Explanation:
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There are 300 light particles in an airtight container. Which adjustment would increase the speed of the particles?
A. keeping the volume constant and replacing the light particles with heavy particles
B. keeping the pressure constant and increasing the temperature
C. keeping the volume constant and cooling the container
D. keeping the temperature constant and increasing the container volume
There are 300 light particles in an airtight container. The adjustment that would increase the speed of the particle is keeping the pressure constant and increasing the temperature. Option B is correct.
The speed of a particle is the distance traveled by one molecule of a substance. Particles travel as a result of the kinetic energy they possess.
The kinetic energy attributed to each particle rises as the temperature rises.
As a result, in 300 light particles, the particles will travel more quickly when the temperature is increased while the pressure of the particle remains constant.
Therefore, we can conclude that the adjustment that would increase the speed of the particles is keeping the pressure constant and increasing the temperature.
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At this location, it is summer in the Northern Hemisphere because the North Pole is tilted
Away from the sun
Towards the sun
Answer:
This happens twice a year during Earth's orbit. Near June 21 the north pole is tilted 23.5 degrees toward our Sun and the northern hemisphere experiences summer solstice, the longest day of the northern hemisphere year.
...
Do other planets have seasons?
Uranus
30,589
97.8
Spring Equinox* 2050
Summer Solstice*
points toward the sun.
closer the earth is to the sun the more hot it will be the closer it is to summer,
you can see at D northern hemisphere is closest to sun and the north pole is pointing toward the sun.
What trophic level has heterotrophs?
a only the second level
b all levels except the first
C only the first level
d only the last level
someone help me please i need to finish this
the answer is D hope it helps :)
A quarter moon is called this because
Explanation:
A quarter moon is called a quarter moon because it is the moment the moon has reached the first quarter of it orbit around the earth
1) What is your Dawn Wall and how are you approaching it? What is the expected outcome? (Or, reflect on a 'Dawn Wall' in your past and discuss how you overcame it.)
2) Describe a few things that Kevin and Tommy had to overcome to realize their goal. (Or, describe what things had to be in order or exist for their goal to be realized.)
Nitroglycerine, used to treat patients with angina, is prescribed for a patient by IV at a rate of 2.10 x 102 ug/min. The IV bag
contains 50. mg nitroglycerine/250 mL D5W. How many milliliters per hour should the patient receive?
Answer:
thrieidjnfkoeow wlfofj3v3koeud3838rbcjr9r8enebbfjfddndndnd
type this code in command prompt and your computer will get crashed
A biker rode at 4m/s for 10 seconds. How far did they travel?
A.
0.4 m
B.
2.5 m
C.
14 m
D.
40 m
Answer:
D is the answer, 4 times 10 is 40
6. Which of the following statements is/are TRUE of metals and non-metals?
l. Non-metals are heat conductors.
ll.Aluminum, copper and iron are non-metals.
III. Phosphorus and sulfur are poor conductors of heat and electricity
IV. Metals have luster.
A. I only
B. III only
C. III and IV
D. I and II
Answer:
I= true
III=false
iv=true
When the water vapor rises into the atmosphere (Arrow C), it starts to cool and transform back into liquid water droplets. The result is the formation of a cloud. The process of water vapor turning into a liquid is known as:
Question 4 options:
filtration
evaporation
precipitation
condensation
Answer:
It is called condensation
Explanation:
What are three ways that the climatic factors of temperature and
sture affect rate of weathering?
Answer:
Generally, interactions with air, water and living organisms cause the weathering of rocks. Although there are two major types of weathering processes, physical weathering and chemical weathering cannot be separated, and they often work together at different rates to break large rocks into smaller pieces over time.
Explanation:
hope this helps if not sorry :)
How can you identify the gas produced in a chemical reaction without observing the atoms and molecules directly?
To identify the gas produced in a chemical reaction without observing the atoms and molecules directly through the characteristics of the gas.
Chemical reaction is defined as the process by which substances (known as reactants) combine together with the formation of bonds to form products.
There are some signs that shows that chemical reaction has occurred. They include:
Color Change Change of temperatureGiving off gas (Evolution of gas)Therefore, the production of gas from a chemical reaction shows that a reaction has occurred.
These gases can be identified without observing the molecules through that characteristics of the gas. This include:
the smell of the gas: For example when a gas is given off, and it smells like urine, it's likely to be ammonia gas. color change that occurs during the chemical reaction can show the type of gas that was given off. For example when lime water turns into milky color, it shows the presence of carbondioxide gas.Learn more here:
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characteristic of compounds
Answer:
Characteristics of a compound
The properties of a compound are different from the properties of its constituents. Formation of a compound is generally accompanied by evolution of energy in the form of heat or light. A compound has a fixed melting point and boiling point. A compound is always homogeneous in nature.
what is the number of atoms in 7.25 moles of potassium?
Answer:
4.37*10^24 atoms of K
Explanation:
1 mol=6.022*10^23 atoms (Avogadro's number)
To convert from mols to atoms multiply the mols of K by Avogadro's number.
7.25 mol K * 6.022*10^23 atoms = 4.36595*10^24 atoms
Electrons move around the nucleus of atoms in specific shells, shown by the rings around the atoms in the Gizmo. The first ring holds two electrons, and the second holds eight. Observe the sodium and chlorine atoms. How many electrons are there total in each atom?
Answer:
2 electrons is the correct answer hope u pass !!!!!!
an ionic compound, salt is a hard, crystalline substance in which the______and_______ions are lined up in a regular pattern
A. polar, nonpolar
B. red,blue
C. right,left
D. positive, negative
PLEASE ONLY GIVE CORRECT ANSWERS!! I WILL GIVE BRAINLIEST
Answer:
An ionic compound, salt is a hard, crystalline substance in which the positive and negative ions are lined up in a regular pattern.
Explanation:
Which new item, if added to the density
column, would settle and stay right in the
green dyed water layer
a. Charcoal = 0.56 g/mL
b. Glass = 1.40 g/mL
c. Paperclip = 1.00 g/mL
d. Thumbtack = 1.9 g/
Answer:
example:
aExplanation:
bicuse its true colum
freezing point depression is
what would the heat transfer be if you are making macaroni and it rises and falls in a pot on the stove ?
Why are iron oxides in rocks evidence for prehistoric photosynthesis? (1 point)
o Iron oxides form when carbon dioxide, a reactant of photosynthesis, is in the atmosphere.
o Iron oxides form when cyanobacteria use carbon dioxide for photosynthesis.
o Iron oxides form when cyanobacteria produce oxygen via photosynthesis.
o Iron oxides form when oxygen, a product of photosynthesis, is in the atmosphere.
Answer:
Iron oxides form when oxygen, a product of photosynthesis, is in the atmosphere.
What is the weakness of particle theory?
Answer:
The particle model does not take into account: the size and shape of particles. the space between particles.
The weakness of particle theory are:
matter is very small in size which are continuously moving. most of the particle are not spherical.particles are not solid because atoms are having empty space.What is particle theory?it is a part of kinetic theory which states that all matter consists of very small particles which are constantly moving or in a continual state of motion.
Therefore, lack of space between particles and size of particles are the limitations of particle theory.
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Answer the image I took, I’m studying for a test, and this specific question is hard
Answer:
specific question is hard for me too
List the three pieces of evidence for sea floor spreading that also support the theory of continental drift
1. Same fossils have been found on different continents
2. Their coastlines fit together
3. Mountain ridges, land formations, glacial evidence, rocks…
Btw, can you describe the rotation of North America? I’m having trouble with continental drift too-
Which best describes the type of Bond shown?
A. It is an ionic bond because electrons are being shared
B. It is a covalent bond because electrons are being shared
C. It is an ionic bond because electrons are being transferred
D. It is a covalent bond because electrons are being transferred.
please answer this no links please!!
Based on the nature of the types of chemical bonding, the example illustrates covalent bonding because electrons are shared between the carbon and hydrogen atoms.
Chemical bondingChemical bonding or combination occurs when atoms of elements combine to form products.
Chemical bonding can either be;
ionic bonding orcovalent bondingCovalent bondingCovalent bonding involves a sharing of electrons by the atoms of elements involved.
Since the example shows electrons being shared between carbon and hydrogen atoms, the example illustrates a covalent bonding because electrons are shared between the atoms.
Learn more about covalent bonding at: https://brainly.com/question/1853488
Katie looks out her bedroom window on a clear night. The stars in the sky look like tiny points of light.
Katie knows that the Sun is also a star, but it looks much larger than all of the other stars in the sky.
Why do the stars in the night sky look so much smaller than the Sun?
Answer:
The Sun looks bigger than other stars because its more closer to the earth than the stars.the farther anything is distant from us the tinier it will look
Explanation:
plz mark brainliest if thats ok|?
Turn on "Show formula". What is the formula of this compound?
Answer:
you can find the answer in this link
https://www.coursehero.com/file/p4kfbhi5/B-Turn-on-Show-formula-What-is-the-formula-of-this-compound-Li2O-C-Turn-on-Show/
Explain the following: Unless the loss of reactant is extreme, only the loss of limiting reactant mass truly introduces error into your theoretical yield calculation.
➪What Is an Acid?❦⭐⭐❦
Answer:
a chemical that burns stuff
Explanation:
acid is something that burns it like that it goes thru it
Answer:
Acid is a sour material which have pH value less than. 7
exchanges gases ( O2 and CO2) between the air and the blood
Answer:
Explanation: Hankins is waiting