Which two particles each have a mass approximately equal to one atomic mass

What is the specific heat of silicon if it takes 192J to raise the temperature of 45.0g of Si by 6.0oC?

What two factors affect how much gravitational potential energy an object has?

An is formed when an atom or groups of atoms has a net positive or negative charge

Hydrogen has only one electron in its only (and outer) electron shell. If a hydrogen atom were to absorb a tremendous amount of energy where would Bohr say the electron would go? A. fly off the atom B. nowhere, it would just speed up. C.

Which statements describe aspects of what causes wind to blow? Wind is caused by differences in air pressure. Wind moves from low pressure areas to high pressure areas. Differences in air pressure are due to unequal heating.

How many outmost electrons do lithium and potassium have

Which of the following is a heterogeneous mixture Air Salt water Steel Soil I think it's soil but I'm not positive

When 40.5 g of Al and 212.7 g of Cl2 combine in the reaction: 2 Al (s) + 3 Cl2 (g) - -> 2 AlCl3 (s) b) How many moles of AlCl3 are formed?

Which factor does not influence the rate of a chemical reaction? A. the concentration of reactants B. the surface area of reactants C. the presence of a catalyst D. the volume of the container in which the reaction occurs

Air currents move objects in the air. Explain how a convection current might affect the flight of a hot air balloon