Sodium and potassium ions can diffuse across the plasma membranes of all cells because of the presence of what type of channel?

What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen? A. 14.0 g B. 16.0 g C. 18.0 g D. 20.0 g

44. The organic compounds that function in building tissues and acting as enzymes are the: a. Carbohydrates b. Proteins c. Lipids d. Nucleic acids

How does the law of conservation of matter apply to chemical equations? A. The sum of the coefficients on each side of the equation must be the same. B. The sum of the atomic masses on both sides of the equation must be the same. C.

FeCl3 + NaOH → Fe (OH) 3 + NaCl

Which statement about electrons is not true? a. One electron state is a bonding orbital between nucleib. One electron state is an anti-bonding orbital, which results in an absence of electron density between atoms. c.

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.

The compound KOH is called

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?