an item composed of at least 3 identifiable different compounds

Answers

Answer 1
yuh yuh yuh yuh yuh yuh

Related Questions

If the net force acting on a stationary object is zero, how will the object’s motion be affected?

Answers

Answer:

remain at rest

Explanation:

Based on Periodic Law, how is the Periodic Table arranged?

Answers

Answer:

Elements of the periodic table are arranged in order of increasing atomic number. the periodic law states "when elements are arranged in increasing atomic number, there is a periodic repetition of their  chemical and physical properties."

Explanation:

In the modern periodic table, the elements are listed in order of increasing atomic number. ... In a periodic table arranged in order of increasing atomic number, elements having similar chemical properties naturally line up in the same column (group).

ENT
Which of the following is one of Mendel's laws?
Law of Independent Assortment
ouTube
Law of DNA contains genes
Law of Segregation of Genes

Answers

Answer:

law of independent assortment

How many total atoms are in this formula?

2MgSO4

Answers

12 atoms

2(Sx1 Mgx1 Ox4)

What will be the volume of a typical inhaled human breath of 0.020 mol at 1.0 atm and 37°C?
O A. 0.061 L
OB. 0.51 L
O C. 5.1 L
D. 520 L

Answers

Answer:

0.51

Explanation:

i got it wrong multiple times just for this to be the answer.

listening to mitski while crying over this science goodluck

examine the graph to determine half life of strontium -90

Answers

25 years! Note that it takes 25 years for half of strontium 90 to decay.

How do you determine how many molecules are in a chemical equation

Answers

Answer:

Determine the mass of substance and it's molar mass. Divide the given mass by it's molar mass to get moles and multiply time

6.002*1023 molecules 1mole

How many significant figures in 100000 g?

Answers

Answer:

1

Explanation:

Any digit that is not 0 is always significant

based on the activity series, which metal dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam or liquid water?

Answers

Answer: Iron

Explanation: does not react with water, but hydrochloric acid will dissolve them, displacing the hydrogen from the HCl. Iron reacts with hydrogen chloride to produce iron chloride, FeCl2 — sometimes known as ferrous chloride.

To solve such this we must know the concept of chemical reaction. Iron is the metal, which dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam.

What is chemical reaction?

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

When metals react with acid the liberation of hydrogen gas take place.  Metal which is at top of reactivity series react with both acid and steam or liquid water. Iron is the only metals which dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam or liquid water.

Therefore, iron is the metal, which dissolves in hydrochloric acid to produce hydrogen gas, but does not react with steam.

Learn more about the chemical reactions, here:

https://brainly.com/question/3461108

#SPJ5

Bromine, a liquid at room temperature, has a boiling point of 58°C and a melting point of -7.2°C. Bromine can be
classified as a

Answers

Answer:

Selenium

adadadadad

Explanation:

if u ask which group

so it is halogen

or u ask which type of matter

then liquid

a major cause of rancidity of lipids in foods is exposure to

Answers

Answer:

exposure to the sun (heat and light) for long period of time and air (oxygen reacts with particles)

what is change in science??

Answers

Answer:

A transition from one accepted theory to another or from one employed method to another.

Explanation:

I need help.

It measures 10 cm x 5 cm x 2 cm and has mass of 1,930g. What is the density of the gold bar?

Answers

I have the same question pls someone help me

Which of the following is a physical change?

Dissolving salt in water

Digesting food

Burning wood

Oxidation

Answers

Digesting Food

Explanation I Just Know

How many cm of a solution of 0.100 mol dm NaOH are required to completely -3 neutralize 25.0 cm of 0.250 mol dm H3PO4?. a) Write a balanced equation for the reaction (4 marks) b) How many moles of H3PO4 need to be neutralized? (1 marks) c) How many moles of NaOH are needed to neutralize the H3PO4? (1 marks) d) How many cm of 0.100 mol dm NaOH contain the moles in question 5(©) above? (1 marks) ​

Answers

Answer:

Explanation:

How many cm of a solution of 0.100 mol dm NaOH are required to completely  neutralize  25.0 cm of 0.250 mol dm H3PO4?.

a) Write a balanced equation for the reaction NaOH to neutralize (4 marks

?. ) 25.0 cm of 0.250 mol dm H3PO4

H3PO4 + 3NaOH----------> Na3PO4 +3 H2O

b) How many moles of H3PO4 need to be neutralized? (1 marks)

25.0 cm3 of 0.250 mol dm3 H3PO4: 1 liter has 0.25 moles. 100 ml has 0.025 moles 25 ml has o.025/4 molea or 0.00625 moles)

c How many moles of NaOH are needed to neutralize the H3PO4? (1 marks)

for every moles of H3PO4, WE NEED 3 MOLES OF NaOH.  FOR 0.00625 MOLES WE NEED 3X 0.00625 =0.01875 MOLES OF NaOH

d) How many cm3 of 0.100 mol /l NaOH contain the moles in question 5(©) above? (1 marks)

1 L CONTAINS 0.100 Moles

100 ml contains 0.010Moles

we need 187.5 ml since (187.5 X 0.100)/1000=0.01875

Which of the following areas would most likely see the largest amount of heat
flowing up towards the surface of Earth?

a. any area that just experienced an earthquake

b. an area of active volcanoes

c. all areas around the equator

d. heat never flows to the surface of the earth

Answers

Answer:

c. because all countries around the equator experiences heat

PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!! LOOK AT PICURE!!

Answers

1,2,4,5,8,Last two. Pls mark me brainliest. THANK YIUUU

What is a unique quality of the halogens/halides?

Answers

Answer:

Halogens are highly reactive

Calculate the volume of a clear liquid that has a mass of 20 g and a density of 15.77 g/mL.

Answers

Answer:

20 g g/mL. 15.77

Explanation:

i think i answer it

Which of the following is found in both a cell and a virus?
A) hereditary(genetic) material B) cell membrane C) nucleus D) mitochondria

Answers

I dont know maybe b

Answer:

I believe that it is a

Explanation:

I can't comment on you the other question for some reason. Do you have any other means of communication??

Which statement best describes a chemical change?
O A. A substance changes size or phase.
O B. Atoms are made and destroyed.
O C. The nuclei of atoms are rearranged.
O D. Substances form new substances.

Answers

A. A substance changes size or phase.
D is probably your best bet, at least from what I know.

A dump truck, a sports car, and a bicycle are traveling at the same velocity. Which is true?

A The bicycle has the least kinetic energy.


B More information is needed to compare their kinetic energy.


C They all have the same kinetic energy.


D The sports car has the most kinetic energy.

Answers

Answer:

a

Explanation:

The object with greater mass is having greater kinetic energy. Here, all the objects has the same velocity therefore, the bicycle is having least kinetic energy.

What is kinetic energy?

Kinetic energy is a form of energy generated by virtue of the motion of the object. The kinetic energy is related to the mass and velocity of the body by the expression below:

KE = 1/2 mv².

As per this equation, kinetic energy increases with an increase in mass or/ and velocity. The substance with greater mass is possessing the greater kinetic energy.

A dump truck has greater mass than a car and bicycle. Thus, at the same velocity for all, the greater kinetic energy is for the truck and the least kinetic energy is for the bicycle having the least mass here. Thus, option A is true.

To find more on kinetic energy, refer here:

https://brainly.com/question/26472013

#SPJ6

Are two atoms of same element identical​

Answers

Answer:

No. Two atoms of the same chemical element are typically not identical. Since the states of the electrons in an atom are what determine the nature of the chemical bonding that the atom experiences, two atoms of the same element can react differently if they are in different states.

Answer: No

Explanation: Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.

100.0 grams of an isotope with a half-life of 36.0 hours is present at time zero. How much time will have elapsed when 25.00 grams remains?

Answers

We have that  the time that will have elapsed when 25.00 grams remains is

T=72hours

From the question we are told

100.0 grams of an isotope with a half-life of 36.0 hours is present at time zero. How much time will have elapsed when 25.00 grams remains?

Generally the equation for the Half life  is mathematically given as

Where

[tex]X=\frac{25}{100}\\\\X=0.25\\\\Therefore\\\\\frac{1}{2}^n=0.25\\\\n=2 half lives[/tex]

Therefore

T=2*36

T=72 hours

Hence

 the time that will have elapsed when 25.00 grams remains is

T=72hours

For more information on this visit

https://brainly.com/question/23366835

What did Thomson contribute to atomic theory?
A. The discovery that positive charge is concentrated in a core, or nucleus
B. The discovery that negative charge is concentrated in a core, or nucleus
C. The discovery of negatively charged particles, now called electrons
D. The idea that electrons have quantized amounts of energy

Answers

C. The discovery of negatively charged particles, now called electrons


Determine the number of atoms in the following chemical formulas.

1. Naci

Answers

Answer:

2 atoms

Explanation:

a car is parked along a level road identify the forces that act upon the car

Answers

Answer: Gravity i think

Just need to make sure if this is right

Answers

Answer:

yeah think that’s correct

Explanation:

not exactly sure how to explain this, I just know that it’ll prolly just stay the same and not move to any high and low regions of the cell

Someone pls help me I will make you brain

Answers

Answer:

A

Explanation:

Answer:

It's the first one I think "it absorbs the other greenhouse gases and becomes more potent

I will brainless who can answer this all pleaseeeeej​

Answers

1. False
2. True
3. True
4. False
5. False
6. True
7. True
8. False
9. True
10. True
Other Questions
The school colors at Mission Middle School are green and white. Kendra volunteered to make cupcakesfor the school bake sale. To make the right shade of green frosting, she uses 7 drops of blue foodcoloring for every 3 drops of yellow food coloring. A certain substance in an experiment was being stored at 1.7F. It was then placed on a table where the temperature was raised by 3.1FWhat was the new temperature of the substance? the answers are -4.8F-1.4F1.4F4.8F Roter to your Expeditions in Reading book for a complete version of this text. which answer best states a theme of The Mystery of the Topaz Heart? How did gewirtzman survive the Holocaust ? Subtraction of integers -70 --25 = a key premise in many arguments against abortion is that Help me pls I will mark you as brain Your itinerary contains a grid map of New York, with each unit on the grid representing 0.25 miles. If the Rockefeller Center is located at (2,1) and Central Park is located at (7,6), what is the direct distance (not walking distance, which would have to account for bridges and roadways) between the two landmarks in miles? Round your answer to two decimal places, if necessary. What connects the present-day plot and the flashback? 209.120y = [ ? 1 Which of the following is an indication of a chemical reaction?OfreezingO meltingO release of heatO all of the above the sum of two numbers is 6 and the sum of their squares is 28. Find the exact values of these numbers solve please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! If Bo deposited $400 in each childs account, how much money was in Bos original paycheck? ( Help my cousin because Im busy ) Monica uses 3 tablespoons of milk in her custard recipe. The ratio of tablespoons to fluid ounces is 2 : 1. How many fluid ounces of milk does Monica use?(A) 0.5 fluid oz.(B) 1 fluid oz. (C) 1.5 fluid oz. (D) 3 fluid oz. (Also no fractions included and please help meh know please) Which is the better buy?A 450 g box of cereal for $4.69 or a 600 g box of cereal for $6.49? Please show ALL of your work.hint: convert each to a unit rate using "cost / gram", then compare each to see which is cheaper. You and three friends go to the local fair. You each buy a $3 food ticket and a stamp for unlimited rides. If the total cost for the four of you is $32, how much does the stamp for unlimited rides cost? The value of the digit in the thousands place is_______ times as much as the digit in the hundredths place label the coordinator ( x,y) of two points on the graph 15/2.25(step by step 100 points and mark brainliest)