1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ohaa [14]
2 years ago
8

HELPPP!!!

Chemistry
1 answer:
lubasha [3.4K]2 years ago
8 0

Answer:

11. A

12. B

13. D

14. E

15. C

You might be interested in
How does activation energy influence the rate of a chemical equation?
Luba_88 [7]
I need energy because in how much hard homework teachers ‍ give us
6 0
2 years ago
How much water must be added to 6.0 M silver nitrate in order to make 500 mL of 1.2 M solution?
algol [13]

The amount of water that must be added to 6.0 M silver nitrate to make 500mL of 1.2 M solution is : 2000 mL

<u>Given data :</u>

Concentration of siilver nitrate ( M₁ ) = 6.0 M

volume of solution ( V₁ ) = 500 mL

Conc of solution ( M₂ )= 1.2 M

<h3>Determine the amount of water that must be added</h3>

we will apply the equation below

M₁V₁ = M₂V₂ ---- ( 1 )

where : V₂ = V₁ + water added  ---- ( 2 )

V₂ ( Final volume ) = ( M₁V₁ ) / M₂

                              = ( 6 * 500 ) / 1.2

                              = 2500 mL

Back to eqaution ( 2 )

2500 mL = 500 mL + added water

therefore ; added water = 2500 - 500

                                        = 2000 mL

Hence we can conclude that The amount of water that must be added to 6.0 M silver nitrate to make 500mL of 1.2 M solution is : 2000 mL.

Learn more about Volume : brainly.com/question/12410983

#SPJ1

7 0
2 years ago
Please tell me answers I am given you brainliest ​
Zina [86]

Answer:

1 = one

2 = fluorine

3 = Bromine

4 = increase

5 = first increaseas and then decreases

hope it helps

7 0
3 years ago
How many atoms are in 4.5 x 1022 moles of CO2?
weeeeeb [17]

The number of atoms : N = 2.709 x 10⁴⁶

<h3>Further explanation</h3>

Given

4.5 x 10²² moles of CO₂

Required

The number of atoms

Solution

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

Input the value :

N = 4.5 x 10²² x 6.02 x 10²³

N = 2.709 x 10⁴⁶

8 0
2 years ago
Is snails growing shell conserve mass
postnew [5]

The thing that two changes have in common that snails growing shells and  rust forming on a bicycle frame is option D. Both are caused by cooling.

<h3>How come snails develop shells?</h3>

Calcium carbonate is said to be the material that makes up the shell. The snail's shell expands as it grows to accommodate its growing body. Snails and slugs are also members of the mollusc family of creatures.

Therefore, note that  air that has been mixed with the metal can make rust to develop. and as such, option D. Both are caused by cooling. is correct.

Learn more about snails growing shells from
brainly.com/question/15758489

#SPJ1

See full question below

What do these two changes have in common? snails growing shells rust forming on a bicycle frame Select all that apply.

A. Both are only physical changes.

B. Both are caused by heating.

C. Both are chemical changes.

D. Both are caused by cooling

5 0
11 months ago
Other questions:
  • Use the graph to determine which is greater, the heat of fusion or the heat of vaporization. Explain how you used the graph to d
    6·1 answer
  • How many moles of water will be produced when 3 moles of ethane are burned
    13·1 answer
  • According to the kinetic-molecular theory of gases, molecules of an ideal gas
    11·1 answer
  • Which bodies are composed primarily of rock and metal
    14·1 answer
  • 50 Points
    10·2 answers
  • Air is a solution of gases, what is the solvent in air?
    5·1 answer
  • Eşit kütlede ve özdeş kaplarda bulunan Alkol ve Suyun buhar basınçlarını eşitlemek için ne yapmalıyız?
    11·1 answer
  • How many moles of kclo3 are required to produce 14.3 moles of kcl?
    7·2 answers
  • What two subatomic particles have to be different in order to have an ion?
    6·1 answer
  • Scientific Inquiry begins with?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!