You and a friend each decide to build the same model airplane. After the airplanes are built, you decide to conduct an investigation to determine which airplane can glide through air the longest. Outline a plan to conduct your investigation.

What population would be affected the greatest by rerouting a river for crop irrigation? A) A population of fish that lives downstream B) Farmers that live upstream C) Migratory herds that drink from the waters

An automobile engine provides 642 Joules of work to push the pistons. In this process the internal energy changes by - 2952 Joules. Calculate q for the engine. This represents the amount of heat that must be carried away by the cooling system.

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes? a. Identify the longest chain of carbon atoms. b. Examine the multiple bond for cis - and trans - isomers. c.

You have two beakers, one filled to the 100-mL mark with sugar (which has a mass of 180.0g) and the other filled to the 100-mL mark with water (mass of 100.0g).

What will happen to the physical state of gases if pressure is increased and temperature is decreased?

Which group of elements belongs to the f-block? O metalloids O inner transition metals O metals O nonmetals

When you open a bottle of a soft drink and leave it open, the drink eventually goes flat. this happens because the equilibrium between carbonic acid and carbon dioxide shifts to produce?

When you go down a group, does the tendency for a metal to react (become duller) increase or decrease?

The force of gravity on Planet B is 3.4 m/sec2. A box weighs 34 N on Earth. What is the mass of the box? a) 3.47 kg b) 333.2 kg c) 115.6 kg d) 10 kg

Assume that 4 molecules of nitrogen and 9 molecules of hydrogen are present? after complete reaction, how many molecules of ammonia are proceded?