Which of the following surrounds a cell, keeping the organelles inside and allowing some things to move into and out of the cell? *

A. Cell Membrane

B. Cytoplasm

C. Nucleus

What is the balanced equation for the reaction of graphite (carbon) with oxygen to produce carbon monoxide?

In the explosion of a hydrogen-filled balloon, 0.60 g of hydrogen reacted with 4.8 g of oxygen. how many grams of water vapor are formed? (water vapor is the only product.)

Flower usually contain more stamen than pistil why do you think this is

Which is true with respect to the kinetic energy of a molecule? O A. it is the lowest at low temperatures B. it increases at low temperatures C. it is the same at all temperatures D. it is the lowest at high temperatures

What is the pH of a solution within a solution with pH = 4.50? [H + ] = 3.25*10-6 M?

Modern scientists use a version of the metric system called

Which element has a larger ionic radius than calcium? a. sodium b. gallium c. magnesium d. potassium

Which solution contains the largest number of moles of chloride ions? a. 30.00 ml of 0.100m cacl2 b. 10.0 ml of 0.500m bacl2 c. 25.00 ml of 0.400m kcl d. 4.00 ml of 1.000m nacl e. 7.50 ml of 0.500m fecl3?

What is the chemical formula of titanium (II)

Not related to any subject but how do you tell someone you like them?