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Fudgin [204]
3 years ago
7

Both protons and neutrons (and their anti-particles) froze out:

Chemistry
1 answer:
VladimirAG [237]3 years ago
6 0
I think Both protons and neutrons (and their anti-particles) froze out at 1013 K, about 0.0001 seconds after the Big Bang. Protons and neutrons are sub atomic particles of an atom that are found in the nucleus of an atom. Proton is the positively charge particle while the neutron has no charge. The proton positive charge accounts for the positive nuclear charge. 
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The metric system is based on powers of 10 so it is much easier to convert units, often just by moving the decimal point.
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3 years ago
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Which statement best describes the properties of sucrose?
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D. They are different from the properties of carbon, oxygen, and hydrogen.  

Step-by-step explanation:

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3 years ago
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If you add 25.0 mL of water to 125 mL of a 0.150 M LiOH solution, what will be the molarity of the resulting diluted solution?
Alborosie

Concentration is the number of moles of solute in a fixed volume of solution

Concentration(c) = number of moles of solute(n) / volume of solution (v)

25.0 mL of water is added to 125 mL of a 0.150 M LiOH solution and solution becomes more diluted.

original solution molarity - 0.150 M

number of moles of LiOH in 1 L - 0.150 mol

number of LiOH moles in 0.125 L  - 0.150 mol/ L x 0.125 L = 0.01875 mol

when 25.0 mL is added the number of moles of LiOH will remain constant but volume of the solution increases

new volume -  125 mL + 25 mL = 150 mL

therefore new molarity is

c = 0.01875 mol / 0.150 L  = 0.125 M

answer is 0.125 M

7 0
3 years ago
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2 years ago
What causes the appearance of lines in an emission spectrum?
Nikitich [7]

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Explanation:

thank me later

pls be brainlest

3 0
3 years ago
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