Who was John Dalton?

A. A schoolteacher who published ideas about the atom

B. The scientist who discovered the electron

C. The physicist who came up with the oil-drop experiment

D. A physicist who studied the nucleus of the atom

The molecular formula of glucose is C6H12O6. What is the empirical formula of glucose? (1) CHO (3) C6H12O6 (2) CH2O (4) C12H24O12

The number of atoms in 5 moles of magnesium

Which bond is the shortest in the molecule? which bond is the strongest? bond is the shortest bond. bond is the strongest bond?

How many molecules (not moles) of n h 3 are produced from 6.04*10-4 g of h 2?

Which of the following musical instruments has the least interia A. Piano B. Saxophone C. Flute D. Electric Guitar

Reactions that affect the nucleus of an atom are called? A. Fusions B. Radioactive decays C. Nuclear reactions D. Fissions

The amplitude of a wave is most directly related to what wave characteristic? Crest length Frequency Wavelength Wave height

Why is oil unable to dissolve well in water? Water is polar and oil is nonpolar, which means they have no attraction for each other. Oil molecules are too large to fit between the closely spaced water molecules in the liquid state.

The fertilizer ammonium sulfate is prepared by the reaction between ammonia and sulfuric acid. How many kg of ammonia are needed to produce 1x10^5 kg of (NH4) 2SO4?

The conversion of chemical energy to mechanical energy is best described by which example? A. sunlight warming the ground B. electricity boiling water C. fuel being combusted to power a rocket