Balance this equation: H 2 + Cl 2 $$\rightarrow$$ HCl

H 2 + Cl 2 $$\rightarrow$$ 2HCl

3H 2 + Cl 2 $$\rightarrow$$ 6H 2 Cl

Which of the following shows the correct way to balance the chemical equation? Fe + O 2 $$\rightarrow$$ Fe 2 O 3

4 Fe + 3 O 2 $$\rightarrow$$ 2 Fe 2 O 3

2 Fe + 3 O 2 $$\rightarrow$$ Fe 2 O 6

4 Fe + O 6 $$\rightarrow$$ 2 Fe 2 O 3

Which of the following is the balanced chemical equation for the following: Na 3 PO 4 + KOH $$\rightarrow$$ NaOH + K 3 PO 4

Na 3 PO 4 + 3 KOH $$\rightarrow$$ 3 NaOH + K 3 PO 4

2 Na 3 PO 4 + 2 KOH $$\rightarrow$$ 3 NaOH + K 3 PO 4

Na 3 PO 4 + 2 KOH $$\rightarrow$$ 2 NaOH + K 3 PO 4

3 Na 3 PO 4 + 3 KOH $$\rightarrow$$ 3 NaOH + K 3 PO 4

Which chemical equation is balanced?

2 Na + 2 H 2 O $$\rightarrow$$ 2 NaOH + H 2

SO 2 + H 2 O $$\rightarrow$$ H 2 SO 4

Which of the following is the balanced chemical equation for the decomposition of water into hydrogen and oxygen gases?

2 H 2 O (l) $$\rightarrow$$ 2 H 2 (g) + O 2 (g)

2 H 2 (g) + O 2 (g) $$\rightarrow$$ 2 H 2 O (l)

H 2 O (l) $$\rightarrow$$ H 2 (g) + O 2 (g)

H 2 O (l) $$\rightarrow$$ 2 H (g) + O (g)

Which of the following is the balanced chemical equation for this reaction: Solid aluminum oxide is the product of the reaction between aluminum metal and oxygen.

4 Al (s) + 3 O 2 (g) $$\rightarrow$$ 2 Al 2 O 3 (s)

2 Al 2 O 3 (s) $$\rightarrow$$ 4 Al (s) + 3 O 2 (g)

2 Al (s) + 3 O (g) $$\rightarrow$$ Al 2 O 3 (s)

Al (s) + O 2 (g) $$\rightarrow$$ AlO 2 (s)

Is this equation balanced?

No, there are too many oxygen on the left side.

Yes, everything appears the same amount on each side.

No, there are too many hydrogen on the left side.

Predict the products for the single replacement reaction Fe + MgBr 2 →

This is a trick question. There is no reaction.

What are the products of this reaction? Cu + AgNO 3 $$\rightarrow$$

This is a trick question. There is no reaction.

Unit 7 Chemical Reactions Review

Authored by Elisa Carreau

Chemistry

10th Grade

NGSS covered

Used 56+ times

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25 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In this image, the symbols in red are called the_______.

Products

Reactants

Subscripts

Coefficients

Tags

NGSS.MS-PS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this image, the symbols to the right of the arrow (in black) are called the_______.

Products

Reactants

Subscripts

Coefficients

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Consider the following: 2 C₆H₁₂O₆. How many carbon atoms are shown?

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

It is balanced

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

5 mins • 3 pts

None of the options are correctly balanced.

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

5 mins • 3 pts

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

Which of the following is an unbalanced equation?

Tags

NGSS.HS-PS1-7

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Unit 7 Chemical Reactions Review

In this image, the symbols in red are called the_______.

In this image, the symbols to the right of the arrow (in black) are called the_______.

Consider the following: 2 C6H12O6. How many carbon atoms are shown?

Which of the following is an unbalanced equation?

Which chemical equation is balanced?

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Consider the following: 2 C₆H₁₂O₆. How many carbon atoms are shown?