What is the meaning of Pangaea

Electric force is an A. attraction and repulsion between protons and electrons . B. attraction and repulsion between protons and neutrons. C. attraction and repulsion between neutrons and electrons.

Which of the following is the correct isotope notation for the element above? a. b. c. d. user: how many neutrons are in an atom of carbon with a mass number of 14? a. 6 b. 7 c. 8 d. 14

The electrical conductivity of an aqueous solution depends on the concentration of which particle in the solution

In a first-order reaction (a d b and rate = k [ a., tripling the concentration of a will have what effect on the reaction rate?

What is the volume, in liters, of 0.500 mol of c3 h8 gas at stp?

What is the SI base unit of temperature? Celsius kelvin coulomb Fahrenheit

What property of an object is expressed by the measurement of an item's mass per unit volume? A. density B. viscosity C. surface tension D. buoyancy

Which type of wave cannot move without a medium in which to travel? Heat waves Light waves Sound waves Transverse waves

8Ft 14 ft What is the Surface Area?

What type of atom is hydrogen with an atomic mass of 1 and 2 electrons