1. <em>Increasing the concentration of one or more reactants will often increase the rate of reaction. This occurs because a higher concentration of a reactant will lead to more collisions of that reactant in a specific time period. </em>
<em>2. Physical state of the reactants and surface area.</em>
The coefficients of the substances give you the ratio of the number of moles.
The 4 before the H2O and the 5 before the HCl tell you that for every 5 moles of HCl created, 4 moles of H2O had to react.
Therefore:

can be used to find the moles of H2O that react.
C the products are on the right side of the arrow
Answer:
the answer is 55 cg/L
Explanation:
Knowing the conversions, there is 100 cg in one g. if there is .55 g/mL then you multiply by a 100 to get 55 cg/L.
Answer:
The answer to your question is Ionic bonding. Magnesium loses 2 electrons and Chlorine gains 1 electron
Explanation:
An Ionic bond is formed between a metal and a nonmetal and the difference of electronegativity is higher than 1.7. In this type of bond, metals lose electrons and nonmetals gain them.
Covalent bonding is formed between two nonmetals and the difference of electronegativity is between 0 and 1.7. Elements share electrons.
Process
Electronegativity of Mg = 1.31
Electronegativity of Cl = 3.16
Difference = 3.16 - 1.31
= 1.85
1.85 > 1.7 then the bond formed is Ionic
Magnesium loses 2 electrons and Chlorine gains 1 electron