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VladimirAG [237]
3 years ago
5

Which statement accurately describes the origin and expansion of the universe

Chemistry
1 answer:
sweet-ann [11.9K]3 years ago
7 0
Cosmic background radiation is leftover thermal energy from the Big Bang.
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Mamont248 [21]
The acid is harsh and causes pain so having less of it means that it is less aggressive
4 0
3 years ago
2. The number of molecules in 1.0 mole of So2 is the same as the number of molecules in:
m_a_m_a [10]

Answer:

1.0 moles of N2

Explanation:

since

1.0 × avogadro's no# = same answer for SO2 and N2

avogadro's no#= 6.02× 10²³

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3 years ago
Why thre is no atmosphere in moom,?
goblinko [34]
The gravitational pull of the moon is not strong enough to attract a significant atmosphere.
3 0
3 years ago
Complete the sentences to identify the trend in first ionization energies as one proceeds down the group 7A elements and explain
Harrizon [31]

Answer:

a)decrease

b)increase

c)smaller

d)smaller

Explanation:

Ionization energy decreases down the group due to increase in the atomic radius. The distance between the outermost electron and the nucleus increases hence the nuclear attraction for the outermost electrons become smaller and the ionization energy also become smaller as electrons are now easily removed from the outermost shell.

Hence the group of answer choices provided above.

3 0
4 years ago
3.Convert 50 degree Celsius to Fahrenheit ​
Sedaia [141]

Answer:

122 forenhieght

Explanation:

(50°C × 9/5) + 32 = 122°F

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4 years ago
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