A tree was chopped down and cut up in a local forest. The tree changed in shape.

Which kind of change took place?

A. change in reaction

B. phase change

C. physical change

D. chemical change

Suppose the price of gasoline increases 10% and quantity of gasoline demanded in Orlando drops 5% per day. Demand for gasoline in Orlando is: price unit-elastic. price elastic. price inelastic. perfectly price inelastic.

3. What causes hydrogen bonding?

For the reaction 2N2O5 (g) 4NO2 (g) + O2 (g), the following data were colected: t (minutes) [N2O5] (mol/L) 0 1.24x10-2 10 0.92x10-2 20 0.68x10-2 30 0.50x10-2 40 0.37x10-2 50 0.28x10-2 70 0.

What is the mass of one mole of aluminum. (Show work)

Which of the following represents a pair of isotopes? F 1h and 3h G 16O2 - and 19F- H 40K and 40Ca J 16O2 - and 32S2-

Why are coastal zones productive?

Why aren't there any plate boundaries in Maryland?

Farmers need to make many decisions about how they grow their crops. One of these decisions is whether to use synthetic fertilizer or organic fertilizer, such as manure.

If you walk toward a Van der Graaff generator, the effect of its electric field would get weaker as you got closer to it, true or false.

The volume of a single nickel atom is 8.10*10-24 cm3. what is the volume of a nickel atom in microliters?