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Olin [163]
3 years ago
5

Will a block of material having a volume of 1.97 x 105 cm3 and weighing 1.59 kg float or sink when placed in water? Show calcula

tions to support you answer.
Chemistry
1 answer:
Olenka [21]3 years ago
8 0

Answer:

float

Explanation:

density= mass/ volume (kg/m^3)

1.59 kg/0.197 m^3

=8.07 kg/m^3

density of H2O= 1000 kg/m3

since density(block)<density(H2O), the block will float

(can also be done in g/cm^3)

1590 g/ (1.97*10^5 cm3)= 0.00807 g/cm^3 < 1 g/cm^3 (h2O)

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6. O₂ + Cu —> CuO

7. H₂ + Fe₂O₃ —> H₂O + Fe

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Explanation:

6. Oxygen gas react with solid copper metal to form copper(II) oxide

Oxygen gas => O₂

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The equation is:

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7. hydrogen gas and iron(III) oxide powder react to form liquid water and solid iron power

hydrogen gas => H₂

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Iron => Fe

The equation is:

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hydrogen gas => H₂

Water => H₂O

The equation is:

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The equation is:

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