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Misha Larkins [42]
3 years ago
14

What are columns in a periodic table usually referred to?

Chemistry
1 answer:
Lerok [7]3 years ago
6 0

Answer: groups or families

Explanation:

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When a sample of liquid is heated, its thermal energy _______.
Ratling [72]

Answer:

Entropy.

Explanation:

I really hope this is right! sorry if its wrong

4 0
3 years ago
A tone that is lower in pitch is lower in what characteristic?
zepelin [54]
A tone that is lower in pitch is lower in what characteristic?=frequency
4 0
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Read 2 more answers
A(g) + 2B(g) → C(g) + D(g)
WITCHER [35]

Answer:

0.169

Explanation:

Let's consider the following reaction.

A(g) + 2B(g) ⇄ C(g) + D(g)

We can find the pressures at equilibrium using an ICE chart.

       A(g) + 2 B(g) ⇄ C(g) + D(g)

I       1.00     1.00        0        0

C       -x        -2x        +x       +x

E    1.00-x  1.00-2x     x         x

The pressure at equilibrium of C is 0.211 atm, so x = 0.211.

The pressures at equilibrium are:

pA = 1.00-x = 1.00-0.211 = 0.789 atm

pB = 1.00-2x = 1.00-2(0.211) = 0.578 atm

pC = x = 0.211 atm

pD = x = 0.211 atm

The pressure equilibrium constant (Kp) is:

Kp = pC × pD / pA × pB²

Kp = 0.211 × 0.211 / 0.789 × 0.578²

Kp = 0.169

6 0
3 years ago
Which of following increases the average kinetic energy of particles?
Arisa [49]
I think it is the gas and the heat in it
8 0
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How are stars and comets different?
ehidna [41]
The answer is letter C.

Because we classify something as a star when it is: a large ball of gas that undergoes nuclear fusion. Given this definition, a comet is not a star. A comet is a ball of ice and dirt hurtling through space, it shines only because it reflects ligh
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