A ball rolls along a smooth horizontal floor at 10 m/s, then starts up a 20 degree ramp. How high does it go before rolling back?

Boom! Boom! Boom! The car passed Steve's house and the blaring music from the car's radio rattled the windows. How would a scientist explain this to Steve? A) Sound waves reflected off of the windows of the house.

A student listed the characteristics of chemical and nuclear reactions. Chemical and Nuclear Reactions A - ->Total mass remains unchanged B - -> Small change in mass takes place Which of these statements best explains the identity of Reaction A? A.

A solid magnesium flare has a mass of 1300 g and a volume of 743 cm to the third power. What is the density of the magnesium?

Which describes a property of water that allows plants to transfer it from their roots to their leaves? Water exhibits weak adhesion and cohesion, which allows capillary action to occur.

For each of these equations, determine the change in the number of moles of gas, δngas.? A.) (NH4) 2 CO3 (s) = 2NH3 (g) + CO2 (g) + H2O (g) B.) H2 (g) + Cl2 (g) = 2HCl (g) C.) 2H2 (g) + O2 (g) = 2H2O (l) D.) 2Na (s) + Cl2 (g) = 2NaCl (s)

Wha characteristic of metallic bonds allow metals to be malleable and ductile

What stores water, waste, and nutrients for the cell? A Plasma Membrane B Vacuole C Golgi Body D Nucleus

How many molecules are there in 0.035 moles of CO2? O A) 1.5 molecules O B) 1.8 x 1018 molecules O C) 5.8 x 10-26 molecules OD) 2.1 x 1022 molecules

Write the full ground-state electron configuration for each: (a) Br (b) Mg (c) Se

71.89 g CO2 = _g C6H12O6