2 years ago

How does the Big Bang theory explain why there is a lot of hydrogen and helium in the universe?

1 answer:

N76 [4]2 years ago

7 0

Answer:

when the explosion happened the matter fussed into elements as the electrons portions Nd notrons were compresed into the elements beacuase hydrogen has 1 nutron proton and electron surronding its core

You might be interested in

Which of the examples below is a chemical agent? Select one:

Sergeu [11.5K]

Chlorine, Anthax is a biological agent, and uranium is a radioactive agent, and dynamite is just a no. Chlorine is a chemical gas.

6 0

3 years ago

An atomic spectra is like a _________ for an element, in that it is unique for that element and can be used in identification.

adell [148]

Atomic number, because the atomic number is unque to each individua element.

3 0

3 years ago

What is the half-life of a radioisotope if it decays to 25% of its original activity in 7 yr?

Pepsi [2]

Answer:

3.5 yrs

Explanation:

If a sample has decayed to 25%, this means 2 half-lives have passed. We are given this is equal to 7 yrs, and it follows that one half life is 3.5 yrs.

7 0

1 year ago

In writing the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of KOH and Mg(NO3)2 are mixe

Scilla [17]

C) Mg(OH)2
hope it helps

6 0

3 years ago

Answer the above pic<br><br>i bet no one can solve this correctly with steps

Sever21 [200]

Answer:

solution given:

log k=4- $\frac{200}{t}$