What's the percent composition of sodium and sulfur

Where does change oif depolarization occurs?

Describe how Electronegativity is related to metallic character of an element

Basic substances have a gritty texture. TRUE FALSE A substance is added to pure water and the concentration of aqueous H + ions increases. What kind of substance has been added to the water? an acid a base water either an acid or a base

Which of the following is true of an electrolytic cell? a. An electric current causes an otherwise non-spontaneous chemical reaction to occur. b. Reduction occurs at the anode c. A spontaneous electrochemical reaction produces an electric current d.

heat can be transferred by conduction and convection. which process do you think is quicker? why do you think so?

3. Five grams of orange-drink mix are dissolved in 100 grams of water. What would you expect the mixture to weigh? A) 95 grams B) 100 grams C) 105 grams D) 500 grams

What is the formula for the aqueous salt produced when hydrofluoric acid is neutralized by sodium hydroxide?

Which statement is a reason to support population regulation? A) It is unethical for us to control birth control rates B) Humans have the freedom to produce as many children as desired C) The gap between the rich and poor has been narrowing since

When you were dropping the water onto the penny, why was the water not spilling off the penny?

What properties of radioactive isotopes make them useful?