The type of current used by a battery is?

Which type of solid would be most soluble in water? A) a nonpolar solid b) a polar solid. C) a metallic solid. D) a solid with high molar mass

What is the Universe made of? try to answer that question! & must have a detailed answer!

Which of the following would not be evidence that a chemical reaction has occurred in a container? A. There was a flash of light inside the container. B. The reactants are exactly the same as the products. C. The container got warmer. D.

Electrons exist only at fixed levels of potential energy. however, if an atom absorbs sufficient energy, a possible result is that

What information does the color of a star tell you?

Based on the number of valence electrons, what is the correct formula when nitrogen bonds to hydrogen? A) NH2 B) NH3 C) NH4 D) N2H

Choose the correct statement about the currents through the elements. Choose the correct statement about the currents through the elements. The currents in series-connected elements are not the same and depend on a current or a voltage source.

5 potential causes of infertility

Suppose you place a ball in the middle of a wagon, and then accelerate the wagon forward. Describe the motion of the ball relative to the ground. - Describe its motion relative to the wagon.

Water is poured into a container that has a leak. The mass 'm' of the water is given as a function of time 't' by, m=5t^0.8 - 3t + 20, with t>=0, mass in grams and t in seconds a. at what time is the water mass greatest, and b.