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3 years ago

What do all decomposition reactions have in common? (My answer: D, correct?)

2 answers:

5 0

"They start with one reactant and end with more than one product" is the answer. This is the representation of decomposition...

AB = A + B

Hope this helps and Mark Brainliest

inn [45]3 years ago

3 0

Correct answer is D.

,,They start with one reactant and end with more than one product."

:-) ;-)

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What is Δn for the following equation in relating Kc to Kp?CH4(g) + H2O(g) ↔ CO(g) + 3 H2(g)-120-3-2

Sindrei [870]

Answer: Δn for the following equation in relating Kc to Kp is 2.

Explanation:

The balanced chemical equation is:

$CH_4(g)+H_2O(g)\rightleftharpoons CO(g)+3H_2(g)$

Relation of $K_p$ with $K_c$ is given by the formula:

$K_p=K_c(RT)^{\Delta n_g}$

Where,

$K_p$ = equilibrium constant in terms of partial pressure

$K_c$ = equilibrium constant in terms of concentration

R = Gas constant

T = temperature

$\Delta n_g$ = change in number of moles of gas particles = $n_{products}-n_{reactants}=4-2=2$

Putting values in above equation, we get:

$K_p=K_c\times (RT)^{2}$

Thus the value of Δn for the following equation in relating Kc to Kp is 2.

5 0

3 years ago

Question 9 of 10

MrMuchimi

Answer:

A. Calculating the mass of a product from the number of moles of reactants

Explanation:

Its the answer trust me

8 0

3 years ago

What is the other product for this reaction? Hbr + NaOH —> ( select 2)

ratelena [41]

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Answer: HBr + NaOH = nabr + h2o

Explanation:

I hope this helped!

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6 0

3 years ago

A 59.1 sample of aluminum is put into a calorimeter (see sketch at right) that contains of water. The aluminum sample starts off

Gemiola [76]

Answer:

Specific heat capacity of aluminium is 0,863 J/g°C

Explanation:

Values: 250g of water, aluminum sample starts off at 91.3°C, water starts off at 16.0°C, temperature of the water stops changing it's 19.5°C

In this problem, the heat produced for the aluminium is the same consumed by water. The heat consumed by water is:

Q = C×m×ΔT (1)

Where C is specific heat of water (4,184J/g°C), m is mass of water (250,0g) and ΔT is change in temperature of water (19,5°C-16,0°C = 3,5°C)

Replacing:

Q = 4,184J/g°C×250,0g×3,5°C

Q = 3661 J

Using (1), it is possible to obtain specific heat of aluminium, thus:

Q / (m×ΔT) = C

Where Q is heat (3661J), m is mass (59,1g) and ΔT is change in temperature (91,3°C - 19,5°C( = 71,8°C

Replacing:

3661J / (59,1g×71,8°C) = C

C = 0,863 J/g°C

I hope it helps!

4 0

4 years ago

What is a beneficial aspect of nuclear fission?

LUCKY_DIMON [66]

Answer:

C. The ability to release tremendous amounts of energy

Explanation:

The decay of massive and unstable nuclei which leads to the formation of newer atoms or nuclei accompanied by the release of energy is known as nuclear fission. In a splitting reaction such as fission, energy is released from the conversion of mass.

The energy released in a fission reaction can be used to generate electricity through a series of process. Most advanced countries in the world generates their electricity through this process.

3 0

4 years ago