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
tino4ka555 [31]
3 years ago
7

Please help with 2 chem questions thank you!

Chemistry
2 answers:
xeze [42]3 years ago
8 0
The correct answers are A and C.
andrew11 [14]3 years ago
6 0
The 1st one is A

The second one is I am 90% sure is A as well
You might be interested in
Read the given equation:
Assoli18 [71]

Answer:

D.

HCl is acid

Ca(OH)2 is base

CaCl2 is salt

5 0
3 years ago
How is a crystal different from a solid made of individual molecules
Dmitry [639]
In a crystal, the molecules are closer together as they are in any solid. they have less room to move, and might even be combined together rather than individual

3 0
3 years ago
Cellular respiration role during water cycle
maks197457 [2]

Answer:

Explanation:

Our breath being absorbed by the atmosphere and dumped back down in the form of rain or snow is one of them. Respiration is the most important metabolic process for animals that can't make their own energy. It allows organisms to gather oxygen from the air in exchange for carbon dioxide and water vapor .

6 0
3 years ago
What is wrong with this model of the atom.
sp2606 [1]

Answer:

A. The neutrons and electrons are in the wrong place.

Explanation:

The atom's nucleus contains both protons and neutrons, whilst the electrons are arranged in shells around the nucleus.

8 0
3 years ago
Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it
lions [1.4K]

<u>Answer:</u> The equilibrium concentration of COF_2 is 0.332 M

<u>Explanation:</u>

We are given:

Initial concentration of COF_2 = 2.00 M

The given chemical equation follows:

                2COF_2(g)\rightleftharpoons CO_2(g)+CF_4(g)

<u>Initial:</u>          2.00

<u>At eqllm:</u>     2.00-2x          x      x

The expression of K_c for above equation follows:

K_c=\frac{[CO_2][CF_4]}{[COF_2]^2}

We are given:

K_c=6.30

Putting values in above expression, we get:

6.30=\frac{x\times x}{(2.00-2x)^2}\\\\x=0.834,1.25

Neglecting the value of x = 1.25 because equilibrium concentration of the reactant will becomes negative, which is not possible

So, equilibrium concentration of COF_2=(2.00-2x)=[2.00-(2\times 0.834)]=0.332M

Hence, the equilibrium concentration of COF_2 is 0.332 M

4 0
3 years ago
Other questions:
  • Choose the heterogeneous mixture from the list below. gatorade chlorine gas carbon (graphite) black coffee chicken noodle soup
    6·1 answer
  • How many meters are in ten cm?
    7·1 answer
  • The relationship between moles and volume, when pressure and temperature of a gas are held constant, is: V/n =
    8·1 answer
  • A chemistry student was asked to calculate the number of moles of iron required to react with 1.20 mol of oxygen to produce iron
    9·1 answer
  • About one hundred thousand years ago, very fluid lava started erupting slowly and gently from a place near a plate boundary. Wha
    10·1 answer
  • A miner develops cancer of the esophagus. ten years later
    9·2 answers
  • The standard Gibbs energy of reaction, ÄG°, for the dissociation of phenol is 56.4 kJ mol-1 at 298 K. Calculate the pKa of pheno
    10·1 answer
  • This condition affects more than 25 million Americans. Often triggered by allergies, this condition causes a constriction of the
    7·1 answer
  • A Group 2 metal with an electron configuration of [Ne]3s2 combines with fluorine (F2) to
    5·1 answer
  • Give Me a simple definition for Acids.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!