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3 years ago

An electric wire produces a magnetic field. True or false? (GIVE PROOF)

Chemistry

1 answer:

kupik [55]3 years ago

3 0

Answer:

True

Explanation:

A magnetic field is made when an electric current flows through a wire.

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Give the general name for the type of quantity that has magnitude but no particular direction.

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Answer: scalar

Explanation:

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4 years ago

What is the relationship between temperature heat and thermal energy

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Temperature is the measurement of thermal energy

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3 years ago

How many moles of NaCl are contained in 100.0 mL of a 0.20 M solution?

AURORKA [14]

Answer:

0.02 mol.

Explanation:

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3 years ago

A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 985.1 mL of water (density 1.000 g/mL). What is the mass

DaniilM [7]

Answer: The mass percent of methanol in solution is 13.85 %

Explanation:

To calculate the mass of water, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

For water:

Density of water = 1.000 g/mL

Volume of water = 985.1 mL

Putting values in above equation, we get:

$1.000g/mL=\frac{\text{Mass of water}}{985.1mL}\\\\\text{Mass of water}=(1.000g/mL\times 985.1mL)=985.1g$

For methanol:

Density of methanol = 0.792 g/mL

Volume of methanol = 200.0 mL

Putting values in above equation, we get:

$0.792g/mL=\frac{\text{Mass of methanol}}{200.0mL}\\\\\text{Mass of methanol}=(0.792g/mL\times 200.0mL)=158.4g$

To calculate the mass percent of methanol, we use the equation:

$\text{Mass percent of methanol}=\frac{\text{Mass of methanol}}{\text{Mass of solution}}\times 100$

Mass of solution = [158.4 + 985.1] g = 1143.5 g

Mass of methanol = 158.4 g

Putting values in above equation, we get:

$\text{Mass percent of methanol}=\frac{158.4g}{1143.5g}\times 100=13.85\%$

Hence, the mass percent of methanol in solution is 13.85 %

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3 years ago

At dinner your brother got mad and threw your

Furkat [3]

Answer: I think you have to subtract the distances

Explanation:

4 0

4 years ago

Read 2 more answers