Which is a statement of the law of conservation of mass? The total mass before a chemical reaction is the same as the total mass after the reaction. O Mass can be created or destroyed in a reaction. The total amount of mass is equal to the volume of both chemicals in the reaction. Every reaction creates an equal amount of mass related to the amount of energy required for the reaction.

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Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.