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2 years ago

What is a magnetic field what does it do??

Chemistry

2 answers:

NikAS [45]2 years ago

5 0

Answer:

attract things or hold them in place

Explanation:

a magnetic field is similar to gravity. Like gravity a magnetic field can hold or pull things.

Rzqust [24]2 years ago

4 0

Yo sup??

A magnetic field is an area about which another object can experience some magnetic force.

It attracts or repels depending upon the poles.

Hope this helps.

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Norma-Jean [14]

Answer:

Centimeters per minute

Explanation:

Speed measurement is formated as [distance] per [time], like miles per hour.

B and C are incorrect because they are [time] per [distance]

A is incorrect because it is [time] per [time]

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3 years ago

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Word or symbol used to describe how data was measured

Orlov [11]

Answer:

Unit

Explanation:

Unit is used to describe how data is measured.

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2 years ago

What is a common property of metals? a) insulates from electricity b) conducts electricity c) has very little reactivity' d) is

DedPeter [7]

Answer:

B) conducts electricity

Explanation:

This answer can be answered by the process of elimination. Metals are excellent conductors of electricity, which means A is out, and metals are also known to have medium reactivity and have high melting points, meaning C and D are also out.

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2 years ago

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A mixture of pepper and water is a suspension because ________ HELPPPP

malfutka [58]

It doesn't because pepper does not dissolve

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2 years ago

To a 25.00 mL volumetric flask, a lab technician adds a 0.150 g sample of a weak monoprotic acid, HA , and dilutes to the mark w

Elis [28]

<u>Answer:</u> The number of moles of weak acid is $4.24\times 10^{-3}$ moles.

<u>Explanation:</u>

To calculate the moles of KOH, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}\text{Volume of solution (in L)}}$

We are given:

Volume of solution = 43.81 mL = 0.04381 L (Conversion factor: 1L = 1000 mL)

Molarity of the solution = 0.0969 moles/ L

Putting values in above equation, we get:

$0.0969mol/L=\frac{\text{Moles of KOH}}{0.04381}\\\\\text{Moles of KOH}=4.24\times 10^{-3}mol$

The chemical reaction of weak monoprotic acid and KOH follows the equation:

$HA+KOH\rightarrow KA+H_2O$

By Stoichiometry of the reaction:

1 mole of KOH reacts with 1 mole of weak monoprotic acid.

So, $4.24\times 10^{-3}mol$ of KOH will react with = $\frac{1}{1}\times 4.24\times 10^{-3}=4.24\times 10^{-3}mol$ of weak monoprotic acid.

Hence, the number of moles of weak acid is $4.24\times 10^{-3}$ moles.

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2 years ago