Why are digestive enzymes in a cell enclosed in a membrane

How many moles of sulfuric acid (H2SO4) are needed to react completely with 6.8 moles of lithium hydroxide (LiOH) ? 2LiOH + H2SO4 → Li2SO4 + 2H2O

Nucleic acids are polymers of just 4 different monomers in a linear arrangement. How many different nucleic acid polymer sequences are possible when the polymer contains monomers

What were the defects in Ruther Ford Atomic model?

What is unchanged when a solution is diluted by the addition of solvent?

Which of the following laws states that the volume of a gas and the amount of a gas in moles are directly proportional?

Which statement best explains the plateau seen in the cooling curve of naphthalene? A) The energy of the system decreases B) The temperature of the system increases C) the temperature of the system decreases D) The energy of the system remains

A group of organisms that breed and produce offspring that can breed. A. Species B. ecosystem C. Biodiversity

The surface of the earth is divided into more than 50 large plates

What is the net ionic equation for AgNO3 (aq) + K2SO3 (aq) ?

Oil and water a combined to make salad dressing. Physical Change? Chemical Change? Both?