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konstantin123 [22]
4 years ago
6

What is an astronomical unit? Why is this unit used to measure distances in the solar system?

Chemistry
2 answers:
boyakko [2]4 years ago
7 0
An astronomical unit is a unit of measurement equal to 149.6 kilometers, the mean distance from the center of the earth to the center of the sun.

1 astronomical unit = 92955807.3 miles
VashaNatasha [74]4 years ago
3 0
A astronomical unit is to measure light years.
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What happens immediately after you dissolve acid in water​
emmainna [20.7K]

Explanation:

Weak bases, just like weak acids, dissociate slowly when dissolved with water. An Arrhenius acid is any substance that ionizes when it dissolves in water to give the H+, or hydrogen, ion. An Arrhenius base is any substance that gives the OH-, or hydroxide, ion when it dissolves in water

welp hope it helped (Q.Q)

4 0
3 years ago
Identify the conjugate base in the equation below
givi [52]

Answer:

a. CH3COO⁻.

Explanation:

Hello there!

In this case, according to the given ionization reaction of acetic acid:

CH₃COOH + H₂O --> H₃O⁺ + CH₃COO⁻

Whereas we can evidence how the CH₃COOH is the acid whereas H₂O the base, as the former donates H ions to the latter, which accepts them; we can infer that H₃O⁺ is the conjugate acid, resulting from the base and the a. CH3COO⁻ is the conjugate base, resulting from the acid.

Best regards!

5 0
3 years ago
How many atoms are in two water molecules? pls and thxxxxxxxxx
arlik [135]

Answer:

A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets. The atoms consist of matter that has a nucleus in the centre. one mole of water contains 6.02 x 1023 MOLECULES of water But each molecule of water contains 2 H and 1 O atom = 3 atoms, so there are approximately 1.8 x 1024 atoms in a mole of water.Feb 12, 2003

Explanation:

7 0
3 years ago
Example for next four problems:
Lena [83]

Answer:

Compound formula : HCl

Element H

# atoms:1

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gram formula weight (g) = 36.46

4 0
3 years ago
If 12.7 grams of hydrogen reacted with an unknown amount of oxygen, how many grams of water would be produced? (Write a balanced
nirvana33 [79]

Answer:

48 g.

Explanation:

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