Answer:
C.
Explanation:
It requires work to stretch or compress a spring.
Answer:
D) energy required to remove a valence electron
Explanation:
Ionization energy can be defined as the atom's ability to and the energy required to remove a valence electron. Ionization energy increases up a group and to the right along a period. So helium has the highest first Ionization energy meaning that it is very hard to remove an electron from helium because octet is already complete.
<u>Answer:</u> The other isotope is
<u>Explanation:</u>
Beta decay is defined as the decay process in which a neutron gets converted to a proton and an electron.
In this decay process, beta particle is emitted. The emitted particle carries a charge of -1 units and has a mass of 0 units. The released beta particle is also known as electron.
The general equation for the beta decay process follows:
The chemical equation for the beta decay of an isotope that produces Sr-87 isotope follows:
The isotope that undergoes beta decay to form Strontium-87 isotope is Rubidium-87
Hence, the other isotope is
Answer: 4.90
Explanation: The molal freezing point constant of C6H6 is 4.90 and its melting point is 5.51∘C. A solution of 0.816 g of a compound A dissolved in 7.5 g of benzene freezes at 1.59∘C. Calculate molecular weight of compound A
<h2>
Answer</h2>
The answer is 38.05 years
<h2>
Explanation</h2>
To solve this question, we should convert the given seconds to the year.
So,
Number of seconds in a year =
Seconds the man lived = .2 * 10^9
How many years, he lived = ?
Here a unit method will be applied as
Total years the man lived=
Total years the man lived = 38.05 years