a) A table tennis ball has been hit is about 13.16 times as fast as the speed for the swimming. What is the speed of the table tennis ball?

Considering the IMA of this frictionless inclined plane, how much force is required to drag a 90 lb. box up it? A. 109 lb B. 10 lb C. 81 lb D. 9 lb

What does it mean to say that a mineral is inorganic?

Why are numbers placed before the elements and molecules in a chemical equation?

Which reaction occurs spontaneously? (1) Cl2 (g) + 2NaBr (aq) - - >Br2 (l) + 2NaCl (aq) (2) Cl2 (g) + 2NaF (aq) - - > F2 (g) + 2NaCl (aq) (3) I2 (s) + 2NaBr (aq) - - > Br2 (l) + 2NaI (aq) (4) I2 (s) + 2NaF (aq) - - > F2 (g) + 2NaI (aq)

E. solid copper sulfide and silver nitrate react to form copper (ii) nitrate and solid silver sulfide. write a balanced chemical equation that describes the reaction. identify the oxidation number of each element in the reaction.

How does a solid turn into a liquid

What does the Ka represent in the equation and why is it important?

Is an american alligator a autotroph?

A/1 * B/C = D, You find yourself with 17 guilders (a gold coin) but you are planning on taking a trip to a country where the local currency is the florin. The current exchange rate is 2 guilders for every 3 florins.

The burning of wood in a fireplace generates heat and light in the form of flames. Which of the following terms best describes this type of reaction? a. condensation reaction b. exergonic reaction c. endergonic reaction d.