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Maru [420]
4 years ago
10

What items are minerals or contain minerals

Chemistry
1 answer:
NARA [144]4 years ago
7 0

Answer:

computer

Explanation:

copper-wire

electronics-siliver

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The diagram illustrates the water cycle.
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Answer:

Precipitation

Explanation:

In the water cycle, water experiences different phase changes from one state to another in nature.

The cycling affords water to in solid, liquid and the vapor form.

From the cycle show, W represents precipitation.

  • During precipitation, water in the atmosphere begins to fall.
  • U is evaporation
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A bowling ball is let go from a height of 30 cm. What is the velocity of the
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An atorn has 9 electrons and 9 protons at the start. If it loses 2 electrons, the net charge on the atom will be. If the atom in
LUCKY_DIMON [66]

Answer:

If it loses 2 electrons, the net charge on the atom will be 2+

If the atom instead gains 4 electrons, the net charge will be 4-

Explanation:

It is based on adding and subtracting charges. Protons are +1 and electrons are -1

If the atom has 9 protons and 9 electrons, the net charge is +9 + (-9) = 0. The +9 is the 9 protons and the -9 is from the 9 electrons.

If two electrons are taken away, there would be 9-2 or 7 electrons with 9 protons. The net charge would then be +9 + (-7) = +2. +9 comes from the 9 electrons and -7 is from the 7 electrons.

So, if two electrons are taken away, the net charge is +2.

Similarly, if the atom gains 4 electrons, there will be 9+4 or 12 electrons and 9 protons. The net charge would then be +9 + (-12) = -4. +9 comes from the 9 protons and -12 comes from the 12 electrons.

So, if 4 electrons are added, the net charge is -4.

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3 years ago
What must be true for a car to move forward at a constant speed? The forward fore of the car is....?
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Constant. you have to continuously apply the same amount of force to achieve constant velocity 
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<span>Germanium is the element that has 32 protons in its nucleus.</span>
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4 years ago
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