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2 years ago

Which type of reaction does this diagram represent?

Chemistry

1 answer:

Citrus2011 [14]2 years ago

8 0

Answer:

Nuclear fission

Explanation:

Because the little particles are being spread out and the two elements are broken apart

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Consider the following unbalanced chemical equation. C5H12(l) + O2(g) → CO2(g) + H2O(l) If 21.9 grams of pentane (C5H12) are bur

Marina CMI [18]

Answer : The mass of water produced will be 32.78 grams.

Explanation : Given,

Mass of $C_5H_{12}$ = 21.9 g

Molar mass of $C_5H_{12}$ = 72.15 g/mole

Molar mass of $H_2O$ = 18 g/mole

First we have to calculate the moles of $C_5H_{12}$ .

$\text{Moles of }C_5H_{12}=\frac{\text{Mass of }C_5H_{12}}{\text{Molar mass of }C_5H_{12}}=\frac{21.9g}{72.15g/mole}=0.3035moles$

Now we have to calculate the moles of $H_2O$ .

The balanced chemical reaction will be,

$C_5H_{12}(l)+8O_2(g)\rightarrow 5CO_2(g)+6H_2O(l)$

From the balanced reaction we conclude that

As, 1 mole of $C_5H_{12}$ react to give 6 moles of $H_2O$

So, 0.3035 moles of $C_5H_{12}$ react to give $0.3035\times 6=1.821$ moles of $H_2O$

Now we have to calculate the mass of $H_2O$ .

$\text{Mass of }H_2O=\text{Moles of }H_2O\times \text{Molar mass of }H_2O$

$\text{Mass of }H_2O=(1.821mole)\times (18g/mole)=32.78g$

Therefore, the mass of water produced will be 32.78 grams.

3 0

3 years ago

What do you think the axis of rotation means?

larisa86 [58]

Answer:

it means the earth is rotating-

Explanation:

5 0

3 years ago

According to Hess’s law, if a series of intermediate reactions are combined, the enthalpy change of the overall reaction is

sdas [7]

I think the answer is B. the sum of the enthalpy changes of the intermidiate reactions

4 0

3 years ago

Read 2 more answers

What solid element is black, is an electrical conductor, is brittle and is found in group 4 of the periodic table?

elixir [45]

Answer: silicon Si, Germanium GE

Explanation:

4 0

3 years ago

What properties can be used to identify substance and why?

Elena L [17]

Answer:

All substances can be characterized by their unique sets of physical and chemical properties. Properties that can be determined without changing the composition of a substance are referred to as physical properties. Characteristics such as melting point, boiling point, density, solubility, color, odor, etc.

3 0

3 years ago