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4 years ago

12

Matter is made up of tiny particles that are too small to be seen with the naked eye. these tiny particles are known as _______.

2 answers:

VladimirAG [237]4 years ago

8 0

Matter is made up of particles too small to be seen with the naked eye called atoms

MArishka [77]4 years ago

4 0

Explanation:

Any substance which occupies some space and has some mass is known as matter.

Every matter is made up of tiny particles which are known as atoms. Any matter can either have same atoms or with different atoms.

Thus, we can conclude that matter is made up of tiny particles that are too small to be seen with the naked eye. These tiny particles are known as atoms.

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Classify the following as either an element, compound, homogeneous mixture or

masya89 [10]

Answer:

<h2>Heterogeneous</h2>

Explanation:

<h3><em>Milk </em><em>seems</em><em> to</em><em> be</em><em> </em><em>homogeneous</em><em> mixture</em><em> </em><em>but </em><em>actually</em><em> </em><em>milk </em><em>is </em><em>a </em><em>heterogeneous</em><em> </em><em>mixture</em><em> </em><em>and </em><em>a </em><em>colloid</em><em> </em><em>solution</em><em>.</em></h3>

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3 years ago

rusting of steel can be prevented by coating the steel with a layer of zinc. Explain, in terms of electron transfer, why steal d

Luba_88 [7]

Answer:

Wouldn't rust because zinc will lose electrons more readily than iron and will therefore oxidize first.

Explanation:

This process whereby rusting of steel is prevented by coating the steel with a layer of zinc is known as galvanization.

Now, in this process, the steel object will be coated in a thin layer of zinc. This coating will prevent oxygen and water from reaching the underneath metal since the zinc will also act as a sacrificial metal.

Now, Zinc is used because it has a lower reduction potential than iron and thus it will get easily more oxidized than iron. Which means the zinc will lose electrons more readily than iron.

Also, since zinc has a lower reduction potential, it is therefore the more active metal. Thus, even if the zinc coating is scratched and the steel is exposed to moist air, the zinc will still get to oxidize before the iron.

7 0

3 years ago

If you have 16 g of manganese (II) nitrate tetrahydrate, how much water is required to prepare 0.16 M solution from this amount

Schach [20]

<u>Answer:</u> The amount of water required to prepare given amount of salt is 398.4 mL

<u>Explanation:</u>

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

We are given:

Molarity of solution = 0.16 M

Given mass of manganese (II) nitrate tetrahydrate = 16 g

Molar mass of manganese (II) nitrate tetrahydrate = 251 g/mol

Putting values in above equation, we get:

$0.16M=\frac{16\times 1000}{251\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{16\times 1000}{251\times 0.16}=398.4mL$

Volume of water = Volume of solution = 398.4 mL

Hence, the amount of water required to prepare given amount of salt is 398.4 mL

4 0

3 years ago

Which shape of ice melts the fastest? cylinder, cube, or rectangular cube?

Gnoma [55]

They will melt at the same rate because they contain the same matter
hope this helps and good luck on your project!!!!

3 0

3 years ago

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Katelyn had a drop in her blood pressure. How do you think her body will react?

Furkat [3]

Answer:

She will have symptoms of dizziness and/or lightheadedness

Explanation:

3 0

3 years ago