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Laabri

Chemistry preassessment February

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Last updated almost 4 years ago
17 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Iron rusts according to the following equation: __ Fe(s) + __ O2(g) → __ Fe2O3(s)

What are the respective coefficients when the equation is balanced with the smallest integer values?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Balance each chemical equation.

A) ____ C5H12(g) →____ C(g) + ____ CH4(g)

Find the first blank

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Balance each chemical equation.

A) ____ C5H12(g) →____ C(g) + ____ CH4(g)

Find the second blank

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Balance each chemical equation.

A) ____ C5H12(g) →____ C(g) + ____ CH4(g)

Find the third blank

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Balance each chemical equation.

B) ____ Sr(s) + ____ F2(g) →____ SrF2(s)

Find the first blank

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Balance each chemical equation.

B) ____ Sr(s) + ____ F2(g) →____ SrF2(s)

Find the second blank

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Balance each chemical equation.

B) ____ Sr(s) + ____ F2(g) →____ SrF2(s)

Find the third blank

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Balance each chemical equation.

C) ____ Al2(CO3)3(s) → ____ Al2O3(s) + ____ CO2(g)

Find the first blank

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Balance each chemical equation.

C) ____ Al2(CO3)3(s) → ____ Al2O3(s) + ____ CO2(g)

Find the second blank

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Balance each chemical equation.

C) ____ Al2(CO3)3(s) → ____ Al2O3(s) + ____ CO2(g)

Find the third blank

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Balance each chemical equation.

D) ____ Ni2S3(s) → ____ Ni(s) + ____ S(s)

Find the first blank

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

Balance each chemical equation.

D) ____ Ni2S3(s) → ____ Ni(s) + ____ S(s)

Find the second blank

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Balance each chemical equation.

D) ____ Ni2S3(s) → ____ Ni(s) + ____ S(s)

Find the third blank

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Balance each chemical equation.

E)_____C3H6 ______O2 →______CO ______H2O

Find the first blank

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

Balance each chemical equation.

E)_____C3H6 ______O2 →______CO ______H2O

Find the second blank

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

Balance each chemical equation.

E)_____C3H6 ______O2 →______CO ______H2O

Find the third blank

Asemmisa {{asɛmmisaAhyɛnsode}}
17.

Balance each chemical equation.

E)_____C3H6 ______O2 →______CO ______H2O

Find the fourth blank