2) Imagine that a loudspeaker is producing quiet note with a low pitch How will it’s viberation change

a) If the pitch of the note becomes higher?

b) If the note become louder

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

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

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.