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3 years ago

Can someone plz help me?? The question is in the pic...TYSM!!

Chemistry

2 answers:

Bogdan [553]3 years ago

5 0

Answer:

3 is the correct answer

Explanation:

Mnenie [13.5K]3 years ago

4 0

Answer:

3 is the correct answer i think

Explanation:

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Which energy source produces less negative

SpyIntel [72]

Answer:

A)Renewable Energy Sources

Explanation:

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3 years ago

The equilibrium constant for the formation of ammonia from nitrogen and hydrogen is 1.6 × 102. what is the form of the equilibri

Nimfa-mama [501]

Answer: The expression for equilibrium constant is $\frac{[NH_3]^2}{[H_2]^3[N_2]}$

Explanation: Equilibrium constant is the expression which relates the concentration of products and reactants preset at equilibrium at constant temperature. It is represented as $k_c$

For a general reaction:

$aA+bB\rightleftharpoons cC+dD$

The equilibrium constant is written as:

$k_c=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

Chemical reaction for the formation of ammonia is:

$N_2+3H_3\rightleftharpoons 2NH_3$

$k_c=1.6\times 10^2$

Expression for $k_c$ is:

$k_c=\frac{[NH_3]^2}{[H_2]^3[N_2]}$

$1.6\times 10^2=\frac{[NH_3]^2}{[H_2]^3[N_2]}$

8 0

3 years ago

The first stage of a(n) _____________________ is when clouds form; this is the cumulus stage.

alekssr [168]

Answer:

I think it might towering cumulonimbus or cumulonimbus

5 0

4 years ago

What are the pros and cons for natural gasses

Kryger [21]

Pros of Natural Gas:
1. Produces Less Soot
2. Abundant Supply
3. Infrastructure in Place

Cons of Natural Gas:
1. Highly Inflammable
2. Greenhouse Gas Emissions
3. Non-Sustainable:

Hope that helps! *if you need more let me know*

6 0

3 years ago

Read 2 more answers

the temperature of a sample of copper increased by 23.0 C when 265 J of heat was applied. What is the mass of the sample?

Anuta_ua [19.1K]

Answer: 29.93g

Explanation:

Q = 265J

C = 0.385J/g/°C

Δt = 23°C

M =?

Q = MCΔT

M = Q / CΔT = 265 / (0.385x23)

M = 29.93g

3 0

4 years ago