The answer to your question would be:: the wind because it carries the sand until it runs into an obstacle
Answer:
Option 2. 50 %
Explanation:
Reaction: 2HgO (s) → 2Hg (l) + O₂(g)
Ratio is 2:2, 2 moles of mercury oxide produce 2 moles of liquid mercury.
If you produced 1 mol of Hg, then the percent yield reaction is 50%
Percent yield is:
[Produced yield (what you produced) / Theoretical yield (what you excpected to be produced)] . 100 → (1 mol of Hg / 2 mol of Hg) .100 = 50%
Subatomic particles are those particles which are smaller than the atom such as electrons, protons and neutrons.
Protons are positively charged particle whereas electrons are negatively charged particle with same magnitude.
Neutrons have about the similar mass as protons but without any electric charge (neutral).
The false statement for the subatomic particles are that some atoms don't have protons: All atoms contains three subatomic particles. Every atom must have protons otherwise atom doesn't exist.
The another false statement for the subatomic particles that the protons (positively charge) and neutrons (neutral) have charges of the same magnitude.
Answer:
MgCl₂ + H₂ ---> 2 HCl + Mg
Explanation:
Since you have not given any products, I am going to assume that this is a single-displacement reaction. In these types of reactions, an element is being swapped for another in a compound. The unbalanced equation would look like this:
MgCl₂ + H₂ ---> HCl + Mg
Mg does not have a subscript of 2 because it can exist by itself. As you can see, the reaction is not balanced. On the left side, there is 1 Mg, 2 Cl, and 3 H. On the right side, there is only 1 of each. The balanced equation would look like this:
MgCl₂ + H₂ ---> 2 HCl + Mg
Now, there is 1 Mg, 2 Cl, and 2 H on both sides.