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Sindrei [870]
3 years ago
10

20+ points

Chemistry
1 answer:
bixtya [17]3 years ago
6 0
1. 4Fe + 3O2 yields 2Fe2O3 (some of the numbers are subscripts, just to let you know)

2. Its a combination reaction
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Which equation represents a neutralization reaction?
netineya [11]

Answer:

a. LiOH(aq) + HBr(aq) -> LiBr(aq) + H2O(l)

Explanation:

This is a neutralization reaction (acid-base reaction) LiOH is a base and HBr is an acid.

7 0
3 years ago
The equilibrium constant, Kp, for the following reaction is 9.52×10-2 at 350 K: CH4(g) + CCl4(g) 2CH2Cl2(g) Calculate the equili
dimaraw [331]

Answer:

pCH4 =  0.9184 atm

pCCl4 = 0.9184 atm

pCH2Cl2 = 0.2832 atm

Explanation:

Step 1: Data given

The equilibrium constant, Kp= 9.52 * 10^-2

Temperature = 350 K

Each have an initial pressure of 1.06 atm

Step 2: The balanced equation

CH4(g) + CCl4(g) ⇆ 2CH2Cl2(g)

Step 3: The pressure at the equilibrium

pCH4 = 1.06 - X atm

pCCl4 = 1.06 - X atm

pCH2Cl2 = 2X

Step 4: Calculate Kp

Kp = (2X)² / (1.06 - X)*(1.06 - X)

9.52 * 10^-2 = 4X² / (1.06 - X)*(1.06 - X)

X = 0.1416

Step 5: Calculate the partial pressure

pCH4 = 1.06 - 0.1416 =  0.9184 atm

pCCl4 = 1.06 - 0.1416 =  0.9184 atm

pCH2Cl2 = 2 * 0.1416 = 0.2832 atm

Kp = (0.2832²) / (0.9184*0.9184)

Kp = 9.52 * 10^-2

pCH4 =  0.9184 atm

pCCl4 = 0.9184 atm

pCH2Cl2 = 0.2832 atm

3 0
3 years ago
Suppose you were writing a summary of the article. Which of these will be most important to put in the summary?
NISA [10]
Which of what? I don’t see a picture.
5 0
3 years ago
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KIM [24]
The appropriate answer is B. Has no atmosphere. Neptune is a gas giant and is the eight planet in the solar system. It has a thick atmosphere consisting of hydrogen, helium and methane. Neptune has at least eight moons with Triton being the largest.

Neptune has four rings which circle the planet. The rings are made of dust particles, similar to the rings of Saturn.
6 0
4 years ago
Read 2 more answers
A substance changes from a solid to a liquid at its boiling point. True or false
svetoff [14.1K]
The answer is false
For an ex: an ice is a solid once it's melts cuz of the heat it's a liquid but if u boil the liquid then it's at it's boiling point

Idk I'm not that really good in science sorry......
4 0
3 years ago
Read 2 more answers
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