I think d is wrong because Everything else is correct for sure. also, minerals vary in the position they hold and have different chemical compounds.
Answer:
Explanation:
Chemical Reactions
1. The rate of a chemical reaction is affected by some factors such as: pressure, temperature, surface area e.t.c
2. Chemical reactions do not involve in changes with regard to the nuclei but in the reorganization of electrons.
3. Isotopes of an element in a chemical reaction behave in a similar manner.
Nuclear Reactions.
1. Nuclear reactions involves a change with respect to the nucleus of an atom, resulting in the production of a different element.
2. The rates of a nuclear reaction are not affected by external factors such as : temperature, pressure, catalyst e. t. c, but are usually spontaneous.
3. Large amount of energy usually accompany nuclear reactions.
Potassium, K ( r = 280 pm)
Calcium, Ca (r = 231 pm)
Florine, F (r = 147 pm)
Silicon, Si (r = 111 pm)
Nitrogen, N (r = 65 pm)
Answer:
It helps to get a better grip on the money.
Explanation:
Answer:
239.0 g/mol
Explanation:
The molar mass of a compound is the sum of all the molar masses of all the individual elements present in the compound.
The molar mass of Ca(ClO4)2 can calculated as follows:
= 40 + 2[ 35.5 + (16x4)]
40 + 2[ 35.5 + 64]
40 + 2[99.5]
40 + 199
239g/mol
