The Bohr atomic model suggests that:

The atom is made mostly of space.

Electrons randomly orbit the nucleus.

Protons and neutrons occupy energy shells.

Gamma rays can can be used to split atoms.

What would happen if you let a balloon go? Would it go into space or just pop later on?

Determine the ionic strength, μ, for each of the solutions. Assume complete dissociation of each salt and ignore any hydrolysis reactions. (a) A solution of 0.00580 M HCl (b) A solution of 0.00227 M CaBr2 (c) A solution of 0.

Enlista cuatro compuestos del carbono, naturales y sintéticos, de uso en la vida cotidiana.

Temperature is the measurement of which type of energy

What do elements of the same group have in common

Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and two moles of water gas (H2O).

The density of rubbing alcohol is 0.785g/mL at 25 Celsius. Calculate the mass of 15.0 mL of the rubbing alcohol.

Is the universe an isolated system?

1000ml of a gas is cooled from 500 K to 250 K, what is it's final volume? A. 250 ml B. 1000 ml C. 500 ml D. 750 ml E. 2000 ml

A reacton has a theoretical yield of 22.8g. When the reaction was carried out, 15.1g of the product was obtained. What is the percent yield?