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gulaghasi [49]
3 years ago
10

HURRY PLEASE!!

Chemistry
2 answers:
elena55 [62]3 years ago
7 0
<h2><em>ITS  D Chemical, Mechanical</em></h2>
Alexandra [31]3 years ago
5 0
From what i can gather it looks like d 

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What are the two ways in which an ion can be made?
andreyandreev [35.5K]
Ions are electrically charged particles formed when atoms lose or gain electrons. They have the same electronic structures as noble gases. Metal atoms form positiveions, while non-metal atoms form negative ions. The strong electrostatic forces of attraction between oppositely charged ions are called ionic bonds.
8 0
3 years ago
Need help please i need a good grade will give more points if correctly answered
weeeeeb [17]
The answer is 5. Sulfur, iron, copper, gold, and aluminum are elements.
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3 years ago
Chemists use the mole as the unit for the amount of substance. One mole is equal to 6.02 x 10^23 (just like one dozen is equal t
Karo-lina-s [1.5K]

Answer:

atoms=6.0x10^{25}atoms

Explanation:

Hello!

In this case, since we are given 4 kg of a calcium-containing sample, in order to compute the atoms there first need to compute the mass in grams:

m=4kg*\frac{1000g}{1kg} =4000g

Next, via the molar mass and the Avogadro's number, we can compute the atoms as follows:

atoms=4000g*\frac{1mol}{40.1g}*\frac{6.02x10^{23}atoms}{1mol}\\\\atoms=6.0x10^{25}atoms

Best regards!

7 0
3 years ago
The process by which a gas is converted to a liquid is called
Oksana_A [137]

solution:

These phase changes can be brought about by heating or cooling. ... This kind of phase change--liquid to gas--is called evaporation or vaporization. Water vapor can in turn be cooled to form liquid water. This kind of phase change--from gas to liquid--is referred to as condensation vaporization.  

Condensation is the change of the physical state of matter from gas phase into liquid phase, and is the reverse of vaporization. The word most often refers to the water cycle.

This is required answer


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4 years ago
10. In what biome would you most likely find
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Answer:

Is there supposed to be options I don't understand the question

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