3 years ago

Rank the three elements according to their ionization energy,

Chemistry

1 answer:

laiz [17]3 years ago

8 0

Answer:

Highest——— Lowest

Chlorine > Iodine > Strontium

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A gas has an initial volume of 15 L. If the temperature increases from 330 K to 450 K, what is the new volume.

Artist 52 [7]

Answer:

20.(45)L or about 20.4545L

Explanation:

PV = nRT

Where:

P - pressure

V - volume

n - number of particle moles

R - a constant

T - temperature in K

We can assume the P and n (and definitely R) stay the same, so we infer that

$V_1 = \frac{nRT_1}{P} = 15L\\V_2 = \frac{nRT_2}{P}\\V_1 / V_2 = \frac{nRT_1}{P} / \frac{nRT_2}{P} = \frac{T_1}{T_2}\\\\15L / V_2 = \frac{330K}{450K} = \frac{11}{15}\\\\V_2 = 15L \cdot \frac{15}{11} = 20.(45)L$

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3 years ago

9, What is an Independent

stepan [7]

Answer:

Not influenced or controlled by others in matters of opinion

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3 years ago

CaCN2 + 3H20 - CaCO3 + 2NH3

ANTONII [103]

Answer:3

Explanation:

6 0

3 years ago

The bonds of four salts (MgBr2, NaCl, MgCl2, and NaBr) are evaluated for ionic character based on electronegativity differences

sammy [17]

Answer:

MgBr2 < MgCl2 < NaBr < NaCl

Explanation:

In order to determinate ionic character, we have to subtract the electronegativity from the elements involved. This is known as Pauling rule.

MgBr2 > ΔΕΝ = 1.8

NaCl > ΔΕΝ = 2.3

MgCl2 > ΔΕΝ = 2

NaBr > ΔΕΝ = 2.1

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3 years ago

Why does Earth rotate?

sleet_krkn [62]

Your answer would be 2.Because the matter in the nebula that formed Earth was spinning

Hope this helps! :D

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3 years ago

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