3 years ago

Hich of these is NOT a possible type of energy transformation?

Chemistry

2 answers:

quester [9]3 years ago

8 0

D, kinetic energy to mechanical energy

Yanka [14]3 years ago

3 0

Answer:

B. sound energy into nuclear energy

Explanation:

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C3H8 +502 + 3CO2 + 4H2O

astra-53 [7]

Answer:

Explanation:

first, you calculate the amount of O2 in moles:

98.0 ÷ 32 = 3.0625

second, the ratio if O2/C3H8 is 5 so you need to calculate O2 in moles with that:

3.0625 ÷ 5 = 0.6125

third, the amount of CO2 in moles also can be calculate by the ratio of C3H8/CO2 which is 3

0.6125 × 3 = 1.8375

then multiply CO2 in moles by its molar mass which is 44 g/mol

1.8375 × 44 = 80.85g

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3 years ago

Burning gasoline is an _____________ reaction.

rusak2 [61]

Answer:

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How many protons does carbons have?

ira [324]

Carbon has 6 protons

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Referring to an activity series, which of the following combinations of reactants would not produce a successful single-replacem

loris [4]

I believe the answer is Ca + MgSO4

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Draw a Lewis structure for thiocyanic acid, HSCN, adding charges and lone electron pairs to the appropriate atoms.

disa [49]

Answer:

See explanation and image attached

Explanation:

Thiocyanic acid is made made up of hydrogen, sulphur, carbon and nitrogen atoms. Carbon is the central atom in the molecule.

The molecule has a total of sixteen valence electrons as shown in the image attached. There are no formal charges in the structure of the molecule as shown.

The molecule is linear in shape.

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3 years ago