Match each substance with its correct definition.

a. neutral
b. base
c. acid
d. ph scale
e. phenolphthalein

1. a substance with a ph of 3
2. a substance with a ph of 10
3. a substance with a ph of 7
4. an indicator
5. a scale that represents the concentration of h 3 0+, 0-14

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

What four properties do all waves have in common