This organelle allows materials to get into and out of the cell. What am I? a. Cell Wall

b. Nucleus

c. Cell Membrane

s. Ribosomes

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6