What is chemistry and biochemistry

How does this splitting wedge make work easier? A) increases the applied force B) decreases the applied force C) changes the direction of the applied force D) changes the direction and amount of applied force

Why does every plant cell have a nucleus

What is a physical change? A change in matter from one form to another without becoming a new substance. A change in matter that results in a chemical reaction. A change in matter that results in the smallest unit of a compound.

As the planets have larger orbits, what happens to their orbital speed around the sun? A) The larger planets further from the sun have greater orbital speeds. B) The orbital speeds remain the same regardless of distance from the sun.

Can periodic table indicates occurrance of the elements, why?

Which of the following is a common property noble gases

How many moles are in 373.8 grams of bromine?

An organism's scientific name is a combination of its

A balloon has a volume of 6.2 liters at 23.2 C. The balloon is then heated to a temperature of 144.0 C. What is the volume of the balloon after heating?

State one qualitative and one quantitative statement of the following : water, sodium hydroxide, air, gold, mercury, carbon, iron and hydrogen gas