suppose you wanted to compare two diffrent stain removers to learn which one was better at removing food stains from clothing. In your test, which variable would you need to control?

Why the solids particles cannot diffuse but gas particle can diffuse

What is a example of a molecule of a single element

Which of the following statements describes a physical property? The substance has a higher density than water. A. The substance forms a solid when reacted with silver nitrate. B. The substance is highly reactive. C.

A solution has a 3.5*10^-3 M of OH^-. Calculate the HO3^ + and pH of this solution, Is it Acidic, Basic or neutral

When light from the sun warms the ground, the transfer of heat energy is called A) conduction. B) power. C) radiation. D) reflection.

Are nails in a jar with water a chemical change

What is the molarity of a solution composed of 4.73 g of potassium iodide (KI) dissolved in enough water to make 0.169 L of solution? Answer in units of M.

Suppose you were given a substance and asked to determine whether or not it was a plasma. Write the characteristics you would look for to identify the substance.

What is a comet? tell in a short and easy answer

In calcium fluoride, what is the closets noble gas that each ion becomes?