Answer:
The full stop (Commonwealth English), period (North American English) or full point . is a punctuation mark. It is used for several purposes, most often to mark the end of a declarative sentence (as opposed to a question or exclamation); this sentence-terminal use, alone, defines the strictest sense of full stop.
Explanation:
Is that the one ur looking for
The answers to the question are presented below by letter.
a.) redox reaction - Cl2 is reduced and OH- is oxidized
b.)
c.) acid - base reaction
d.) redox reaction - Fe is oxidized and O2 is reduced
e.) redox reaction - Ca is oxidized and F2 is reduced
Convert 98.7 g Sb2S3 to mols.
Convert mols Sb2S3 to mols Sb4O6 using the coefficients in the balanced equation.
Convert mols Sb4O6 to grams Sb4O6. (This is the theoretical yield.)
Convert grams Sb4O6 to percent Sb4O6.
%Sb4O6 = [72.4/theoretical yield]*100
So basically your answer is 85.5%
Answer:
See explanation
Explanation:
a) Isotopes are variants of one chemical element which (such as Nitrogen in this case). Those variants differ in <u>neutron number</u> and <u>nucleon number</u>.
This is also the reason why they have <u>different masses</u>. Isotopes are different physically to their original atoms.
b) All isotopes of a given element have the same number of protons and electrons. All the isotopes have the same atomic number as the original element. Isotopes are almost the same chemically.
c) The 14 in the name of Nitrogen-14, means it has a mass of 14u ( while Nitrogen 15 has a mass of 15 u). Nitrogen-14 will have the greatest affect on the average atomic mass, this because of the 95% abundance.
Nitrogen has an average atomic mass of 14.0067 u. This is the closest to 14, what shows nitrogen-14 has the biggest affect.
The average atomic mass is calculated as following: 14*0.95 +15*0.03 + 16*0.02 =14.07 u
d) Both are isotopes, but of another element. They both have a mass of 14 u. Bu they have a different number of neutrons: Oxygen-14 has 6 neutrons and 8 protons while Nitrogen-14 has 7 neutrons and 7 protons. This means oxygen-14 and nitrogen-14 are not isotopes, since isotopes do have the same number of neutrons.
The wrong one is
<span>radioactive half-life is increased by heating the isotope.</span>