CHEMISTRY MIDDLE SCHOOL

C. What are the characteristics of an old river?

Answers

Answer 1
Answer:

Answer:

Explanation:

An old river occurs at the plain course and it is at its lower stage.

Here:

  1. The river gradient is very gentle as it is on a plain.
  2. An old river would be at its depositional phase where all the sediments its carries are being laid down.
  3. It has a low velocity and a very sluggish flow.
  4. Lateral erosion is very active at this stage.
  5. The volume of the river increases substantially as more river tributaries joins.
  6. Some of the river features are flood plains, leeves, ox-bow lakes, delta e.tc.

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What does a substance in solid fase has

Answers

Substances in solid phases have close and tightly knit molecules that can withstand a lot of pressure and vibration in some cases. 

For elements to maintain a neutral charge, which two particles must have equal numbers? (2 points) electrons and protons ions and electrons neutrons and ions protons and neutrons

Answers

Answer: Option (a) is the correct answer.

Explanation:

In order to maintain a neutral charge the number of protons must be equal to the number of electrons.

For example, in a neutral carbon atom the atomic number or number of protons is 6. Also, number of electrons present in carbon atom will be 6.

Thus, we can conclude that out of the given options for elements to maintain a neutral charge number of electrons and protons must be equal.

Use independent variable in a sentence

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using an independent variable means that you are using the one thing in the entire expiriment that can really change for example color,texture 

the particles that make up a rock are constantly moving. however, a rock does not visibly vibrate. why is this?

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Only the particles inside the rock/solid are moving, not the actual rock. 
It is due to a low entropy level in the rock, and also the type of chemical bonds the rock has. 
An example similar to this  one would be diamond. It is made up of carbon bonds. But once you take a (real) diamond out of the ground, it very slowly, not visible to the human eye, yet surely is turning back into graphite. (another substance made by carbon bonds)
i hope this helped.

igneous rock that cools very quickly when it forms may have a texture that is______and______with no visible____

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Igneous rocks that cools very quickly when it forms may have a texture that is smooth and shiny with no visible grains.

What are igneous rocks?

Igneous rocks also called as magmatic rocks is one of the three main rock type present the other two being sedimentary and metamorphic rocks.These rocks are formed by cooling and solidification of magma or lava .

The magma is derived from from partial melts of rocks which are existing  in the earth's crust or mantle.Melting is caused by one of the three processes increase in temperature, change in composition  or decrease in pressure.

Igneous rocks are classified based  according o their occurrence, texture, chemical composition or mineral content.According to their mode of occurrence they are classified as intrusive or extrusive igneous rocks.

Learn more about igneous rocks,here:

brainly.com/question/23555197

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Igneous rock that cools very quickly when it forms may have a texture that is smooth and shiny with no visible grain.

Isaac read 32% of oeople owned dogs what fraction of people owned dogs

Answers

An easy way to do it is to convert the percentage to a decimal, in this case, .32

Then, multiply that by the amount of people.

An equation would be, .32*p=
Hope this helped :)
Multiply .32 by the number of people to receive your answer
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