3 years ago

What causes a star to shine brightly

1 answer:

6 0

Answer:

Stars shine because they are extermly hot of light .The source of their energy is niclear reactions going on deep inside the stars.

Explanation:

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A. What is the pH of a solution with a [H+] of 6.8 x 10^-11?

inysia [295]

Answer:

[H+] = 6.8×10^-11

so, pH = - log[H+]

= - log [6.8×10^-11]

= -(-10.167)

= 10.167

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2 years ago

A sample was collected from a computer keyboard and a toilet seat using two separate cotton swabs. Then, each swab was wiped on

Gnom [1K]

Answer:

toilet seat and washing of hands ✋ very well

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2 years ago

Calculate the percent by mass of carbon in CO2 (carbon dioxide). Please show all work.

anygoal [31]

%C= 12/12 + 2·16=0,273=27,3%.

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3 years ago

What is the happens in electrolysis if the electrolyte solidifies?

lidiya [134]

Answer: For example, if electricity is passed through molten lead bromide, the lead bromide is broken down to form lead and bromine. This is what happens during electrolysis: Positively charged ions move to the negative electrode during electrolysis. ... Negatively charged ions move to the positive electrode during electrolysis.

Explanation:

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2 years ago

Which statements accurately describe volume? Check all that apply.

lesantik [10]

Where is the chooses for you question

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3 years ago