Answer:
Sodium nitrate and CH4
Explanation:
Acids have an "H" at the start and bases have a hydroxide (OH)
Answer: 0.297 moles of calcium carbonate.
Solution:
Number of moles of HCl = moles
According to reaction
Two moles of HCl are reacting with one mole of , then 0.6 moles of HCl will react with:
=
Moles of calcium carbonate reacted = 0.3 moles
In 0.3 moles of calcium carbonate 10% impurities is present i.e.
of impurity.
Actual number of moles of calcium carbonate reacted = 0.3 - 0.003 = 0.297 moles.
You should have given us a table, but I think my table shouldn't be too different.
Let's put oxidation numbers first.
You would have to know that Mg(s) is a reducing agent and Br2(l) is an oxidizing agent. But it is pretty common knowledge that the halogens will tend to take the electrons and alkali and alkaline earth metals will tend to give up electrons.
Mg is oxidized because it gives up electrons; Br2(l) is reduced because it gains electrons. Since the reaction conforms to what we would expect to <em>naturally</em> (thermodynamically favored) occur, it can take place given that the activation energy is supplied.
Answer:
The atomic mass is 101.
Explanation:
Protons and neutrons are the only particles that contribute to mass. Electrons do have a mass, but it's so miniscule and insignificant that it doesn't contribute to the mass of an atom. In every instance of calculating atomic mass, add the number of protons to the number of neutrons.
Therefore,
44 + 57 = 101
number of protons + number of neutrons = atomic mass
Also, there can never be a negative amount of protons or neutrons, so if you get a negative number, there's something wrong.
Bonus Information:
<u>Don't confuse mass with charge!</u> As it says in its name, neutrons are neutral or have no charge. Protons (+) and electrons (-) are the only particles that have a charge, so calculating that would be different.
If you were calculating the atomic charge with the same numbers, your answer would be:
44 - 42 = 2
Charge = <u>+2</u>
What To Remember:
M = p + n
C = p - e
C = atomic charge, M = atomic mass, p =protons, n = neutrons, e = electrons
I hope this helps!
Answer:
Plastic ma be a homogeneous mixture
Explanation:
as the homogeneous mixture are the equal ration blended solution so plastic are also blended in equal proportion with the help of molten state