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salantis [7]
3 years ago
13

HI PLEASE HELP ASAP MULTIPLE CHOICE question. I just want to know which will favour the products the most and the least. THANK Y

OU!

Chemistry
1 answer:
Pavel [41]3 years ago
3 0

Answer:

  1. answer c is the answer

Explanation:

<h3>please mark me as brilliant and follow me</h3>
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Which of the following is a period 4 representative element?
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\huge{\mathbb{\tt { QUESTION↓}}}

Which of the following is a period 4 representative element?

O A. C

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  • Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalen - making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.

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3 years ago
Which of the following is NOT a way that biodiversity is important to an ecosystem?
Vitek1552 [10]

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A. Biodiversity can increase the rate of extinction

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Calculate the mass percentage of oxygen in dry air
grigory [225]
              <span> (0.20948 x 31.998) / (
(0.78084 x 28.013) +
(0.20948 x 31.998) +
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5 0
4 years ago
Read 2 more answers
Express the rate of the reaction in terms of the change in concentration of each of the reactants and products.
weeeeeb [17]

Answer:

c. rate=−1/2Δ[HBr]/Δt=Δ[H2]/Δt=Δ[Br2]/Δt

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

2HBr(g)\rightarrow H_2(g)+Br_2(g)

Thus, the rate is given as:

rate=-\frac{1}{2} \frac{\Delta [HBr]}{\Delta t}=\frac{\Delta [Br_2]}{\Delta t} =\frac{\Delta [H_2]}{\Delta t}

It is necessary to remember that each concentration to time interval is divided into the stoichiometric coefficient, that is why HBr has a 1/2. Moreover, the concentration HBr is negative since it is a reactant and it has a negative rate due to its consumption.

Therefore, the answer is:

c. rate=−1/2Δ[HBr]/Δt=Δ[H2]/Δt=Δ[Br2]/Δt

Best regards.

4 0
4 years ago
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