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ella [17]
3 years ago
5

2

Chemistry
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

Do you have an image, an image would be helpful

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Pls help me also pls have the correct answer
Ann [662]

Answer:

       

Explanation:

       

4 0
2 years ago
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Which of these is not a physical property of matter?
Zepler [3.9K]
Its D. combustibillaty

A. density is how hard or densely the substances molecules are together
B.boiling point is the point at which bonds that hold molecules are broken and so the substances boils
C. malleability is how easily a substance can be stretched until it breaks
D. is a chemical property of how much chemical energy is stored in a substance for it to combust

hope that helps
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8 0
3 years ago
Calculate the mass of 25,000 molecules of nitrogen gas. (1 mole = 6.02 x 1023 molecules)
Ainat [17]

Hey there!

Molar mass N2 = 28.01 g/mol

Therefore:

28.01 g N2 -------------- 6.02*10²² molecules N2

( mass N2 ?? ) ----------- 25,000 molecules N2

mass N2 =  ( 25,000 * 28.01 ) /  ( 6.02*10²³ )

mass N2 = 700250 / 6.02*10²³

mass N2 = 1.163*10⁻¹⁸ g


Hope that helps!

7 0
3 years ago
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What do coefficients in chemical equations tell you?
Juliette [100K]
More information ^^^
5 0
4 years ago
Isotopes: are atoms of different elements which have the same mass are atoms of the same element with equal numbers of neutrons
koban [17]
I can't understand your option because there is no full stop however

isotopes are 2 or more form of elements that contain equal number of proton but different number of neutron in their nuclei
4 0
3 years ago
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