What does conserving mass mean in a chemical equation? a. there are more of each type of atom on the product side than on the reactant side. b. there are more of each type of atom on the reactant side than on the product side. c. there is an equal number of each type of atom on the reactant and product side. d. there is an unequal number of each type of atom on both sides of the equation.

What is an example of a physical property?

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

How are isotopes of the same chemical element alike? how are they different?