The following chemical equations represent three different chemical reactions. 3NaOH + H3PO4 → Na3PO4 + 3H2O 2Mg + O2 → 2MgO Pb(NO3)2 + 2NaI → PbI2 + 2NaNO3 Based on the equations, which statement is correct? Choose the correct answer. MgO is a reactant in one of the chemical reactions. MgO is a reactant in one of the chemical reactions. Na3PO4 is a product in one of the chemical reactions. Na 3 PO 4 is a product in one of the chemical reactions. A total of five oxygen atoms are involved in the first reaction. A total of five oxygen atoms are involved in the first reaction. H3PO4 shows that three atoms of oxygen are involved in the reaction.

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

yes!

explanation:

because it has a type of fat that can make you extremely sick

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.