How is energy in a washing machine being utilised and wasted?

Chemistry

2 answers:

7nadin3 [17]2 years ago

8 0

Answer:

It depends on whether the setting is hot or cold .-.

Explanation:

lana66690 [7]2 years ago

6 0

Wasted= sound
Utilised=movement

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Which two substances are covalent compounds? * C6H12O6(s) and KI(s) C6H12O6(s) and HCl(g) KI(s) and NaCl(s) NaCl(s) and HCl(g)

Ray Of Light [21]

Answer: Option (b) is the correct answer.

Explanation:

A covalent compound is defined as the compound in which sharing of electrons take place between the combining atoms. Generally, when two or more non-metals chemically combine together the it will lead to the formation of a covalent compound.

For example, $C_{6}H_{12}O_{6}$ and HCl is also a covalent compound.

And, a compound in which transfer of electrons occur between the combining atoms is known as an ionic compound. Whenever, a metal chemically combines with a non-metal then it will always lead to the formation of an ionic compound.

For example, KI is an ionic compound.

Thus, we can conclude that $C_{6}H_{12}O_{6}$ and HCl are the two substances which are covalent compounds.

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3 years ago

In case of accidental contact with chemicals, how long should the eyes be flushed at the eyewash station

FromTheMoon [43]

Answer:

See the answer below

Explanation:

The duration of flushing the eyes at the eyewash station in case of accidental contact with chemicals depends of the nature of the chemical.

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For moderate to severe irritant chemicals, an immediate 15-20 minutes washing period is recommended before seeking further medical help.

For corrosive and strong alkalis chemicals, 30 and 60 minutes washing are recommended respectively before seeking the attention of a physician.

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Which of the listed properties is the same for the elements beryllium (Be), magnesium (Mg), and calcium (Ca)?

Setler79 [48]

Answer is valence electron, they all have total of 2 valence electron.
remember group number = valence electron

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