Ask question

Ask question

All categories

2 years ago

13

Given the balanced equation representing a reaction:

1 answer:

sleet_krkn [62]2 years ago

7 0

4Al(s) + 3O2(g) --> 2Al2O3(s) This is the balanced.
From the equation:

4 moles of Al required 3 moles of O2 to produce 2 moles of Al2O3

3 moles of O2 reacted with 4 moles of Al to produce 2 moles of Al2O3
1 mole of O2 reacted with 4/3 moles of Al to produce 2/3 moles of Al2O3 (Divide by 3)
4.5 moles of O2 reacted with (4/3 *4.5) moles of Al to produce (2/3*4.5) moles of Al2O3

4.5 moles of O2 reacted with 6moles of Al to produce 3moles of Al2O3

(3) is the answer. 6 mol of Al.

You might be interested in

Which of the Following Correctly Balances this Equation? _H2+_Cl2 --> _HCl

Scorpion4ik [409]

2 hydrogen and 2 chlorine on the reactant side(left of the arrow)
There is only 1 H and 1Cl on the products side so the balanced equation would be;
H2 + Cl2 —> 2 HCl

7 0

2 years ago

2N2 + 3H2 → 2NH3

denis23 [38]

There are two N≡N bonds and three H–H bonds are in reactants.

Given:

The reaction between nitrogen gas and hydrogen gas.

$2N_2+3H_2\rightarrow 2NH_3$

To find:

Bonds on the reactant side

Solution:

$2N_2+3H_2\rightarrow 2NH_3$

Reactants in the reaction = $N_2, H_2$

The bond between nitrogen atoms in single $N_2$ molecule = N≡N (triple bond)

Then in two $N_2$ molecules = 2 N≡N (triple bonds)

The bond between hydrogen atoms in single $H_2$ molecule = H-H (single bond)

Then in three $H_2$ molecules = 3 H-H (single bonds)

Product in the reaction = $NH_3$

The bonds between nitrogen and hydrogen atoms in single $NH_3$ molecule = 3 N-H (single bond)

Then in two $NH_3$ molecules = 6 N-H (single bonds)

So, there are two N≡N bonds and three H–H bonds are in reactants.

Learn more about reactants and products here:

brainly.com/question/21517037?referrer=searchResults

brainly.com/question/20602904?referrer=searchResults

3 0

2 years ago

Which of the following is NOT a unit used to measure temperature?

dalvyx [7]

Watt stands for power that is energy per unit time

7 0

2 years ago

Bronze is an alloy made of mostly copper (Cu) and tin (Sn). What type of bond forms bronze?

Snezhnost [94]

Answer:

A. Metallic bond

Explanation:

Think about it: copper and tin are both common metals. That's how we know it's a metallic bond!

Why not B: Covalent bonds are between two nonmetals.

Why not C: Ionic bonds are between a nonmetal and a metal.

Why not D: Paired bond isn't a common phrase in chemistry.

6 0

3 years ago

How many moles of H2O2 are needed to react with 1.07 moles of N2H4?

I am Lyosha [343]

Answer:

2.14 moles of H₂O₂ are required

Explanation:

Given data:

Number of moles of H₂O₂ required = ?

Number of moles of N₂H₄ available = 1.07 mol

Solution:

Chemical equation:

N₂H₄ + 2H₂O₂ → N₂ + 4H₂O

now we will compare the moles of H₂O₂ and N₂H₄

N₂H₄ : H₂O₂

1 : 2

1.07 : 2×1.07 = 2.14 mol

6 0

2 years ago