Answer:
0.940mol &
0.000301mol respectively.
Explanation:
number of moles = given mass / molar mass
given mass of Nacl = 55g Molar mass = 23 + 35.5
n=m/M = 55g/58.5g/mol = 0.940mol
note- (add the atomic weights of sodium and chlorine to get the molar mass of Nacl.) = 58.5g/mol
similarly, NaCO3 = 23 + 12 + 16*3 = 83g/mol
n=m/M = 0.025g/83g/mol = 3.01 * 10^-4 = 0.000301mol
extra: If you ever get asked to put it in number of particles just use the relation of 1mole = 6.02 * 10^23 particles.
Matter and substance are definitely related. All substances
are matter but all matters are not substance. A matter can consist of numerous
substances. Matter is generally a loose term used in respect to a substance.
Any physical object can be casually called a matter. Matter and substance are
sometimes used for the same context, but it is completely wrong. Numerous
examples have already proved that a matter may or may not be a substance
depending on its physical nature, but a substance is always a matter.
Co2 and Fe are the products the other two are reactants.
Answer:
ocean heats up and cools down relatively slowly. Therefore, areas near the ocean generally stay cooler
The answer is inductive reasoning.
Using specific observations to make generalizations means inductive reasoning.
Inductive reasoning is opposite to deductive reasoning, it makes generalization from specific observations. Generalization is done from specific set of observations. After generalization, conclusions are drawn from the data. Inductive reasoning has its place in scientific method.
