3. For each of the following chemical equations,
write all possible mole ratios.
a. 2HgO(s) ---> 2Hg(/) + O2(g)
b. 4NH3(g) + 6N0() 5N2(g) + 6H2011)
C. 2Al(s) + 3H2SO4(aq) -- AI_(504)3(aq) + 3H2(g)

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls