According to the law of conservation of mass, in a chemical reaction, the mass of the reactant will always be different from the mass of the product.

Which statement best describes what energy transfer diagrams show? Energy can change form, but the total amount of energy stays the same. Every energy transformation results in a reduction of energy.

Does an object in rest have potential energy

watching television with the remote control in your hand which of the folling exerts the greatest gravitational force on you

A 4.65 g bullet moving at 824 m/s penetrates a tree to a depth of 5.23 cm. Use energy considerations to find the average frictional force that stops the bullet. Answer in units of N.

State four factors that affect the size of ionization energy

Why did dad leave mom?

Sal drew the electron dot diagram of an aluminum atom as shown. How should Sal correct his diagram? He should add five more dots so that the atom obeys the octet rule. He should add ten more dots so that all thirteen electrons are shown.

What uses electricity

How do the elements in the Noble Gas family compare?

The magnetic field strength within a long solenoid isb=4.0t t, where t is time in seconds. if the radius of thesolenoid is1.0 cm, what is the magnitude of the non-coulomb force that acts on a6.0 c charge a distance6.