Answer:
balanced
Explanation:
its balance since all the elments add up on both sides
I would say because the respiratory system brings in the oxygen for the body and the circulatory system moves it throughout the body with the blood
Answer:
Ratio is 1:1
Explanation:
I do not see any coefficients infront of the reactants and the products, therefore, we can automatically assume that every reactant and product is 1 mole. Don't get confused by the 4 off the O. It just means that 1 mole of sulfate has 1 zinc and 4 oxygens.
It is True because in the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.
