3 years ago

Is water a element or compond and is it a homogeneous or heterogeneous

Chemistry

2 answers:

crimeas [40]3 years ago

8 0

Answer:

Water is a compound. It contains more than one element

water is homogeneous

IrinaK [193]3 years ago

8 0

Explanation:

water is a compound

water is heterogeneous

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Ber [7]

Answer:

Math expression: $=\frac{0.77\ g/ml*5200\ ml}{1\ g} *45.0\ kJ$

Explanation:

Given:

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Density of gasoline = 0.77 g/ml

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To determine:

The amount of energy produced by burning 5.2 L gasoline

Calculation set-up:

1. Calculate the mass (m) of gasoline given the density (d) and volume (v)

$m = d*v\\\\m = 0.77 g/ml*5200 ml$

2. Calculate the amount of energy produced

$=\frac{0.77\ g/ml*5200\ ml}{1\ g} *45.0\ kJ=180180 kJ$

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