Answer:
B. The value of q is positive
Explanation:
Answer:
Second Earth's Atmosphere
The second atmosphere, which was the first to remain with the earth, was created by volcanic outgassing and comet ice. There was a lot of water vapor, carbon dioxide, phosphorus, and methane in this atmosphere, but absolutely no oxygen.
Explanation:
Answer:
We have the final answer as

Explanation:
To find the energy of a photon of this light we use the formula
<h3>E = hf</h3>
where
E is the energy
f is the frequency
h is the Planck's constant which is
6.626 × 10-³⁴ Js
From the question
f = 7.08×10¹⁴ Hz
We have
E = 7.08×10¹⁴ × 6.626 × 10-³⁴
We have the final answer as

Hope this helps you
Answer:Here is a short list of main properties:
They form crystals. ...
They have higher enthalpies of fusion and vaporization than molecular compounds.
They are hard.
They are brittle.
They have high melting points and also high boiling points.
They conduct electricity but only when they are dissolved in water.
Explanation: