1 What is the approximate mass of a proton?

(1) 1 u (3) l g

(2) 0.0005 u (4) 0.0005 g

How many valence electrons does an oxygen atom need to gain in order to become stable? a 1 b 2 c 3 d 4

Name the compound K3 (PO4) 3

What is the colour of FeSo4, 7 H2O crystal how does the colour change upon heating? Give balance equation for the change

Which of the following would indicate that a chemical change might be occurring? A. A solid is crushed finer and finer until it becomes a powder B. A solid is stirred into a liquid and begins to dissolve C.

What is 8 (6x+4) = -112

How many dozen kernels of corn are in a 50 pound bag of corn

How does magnesium obey the octet rule when reacting to form compounds

Is heat conductivity a physical or chemical property?

When 5800 joules of energy are applied to a 15.2-kg piece of lead metal, how much does the temperature change by

What is 230 in scientific notation?