The diffusion of water molecules across a selectively permeable membrane from an area of higher concentration to an area of lower concentration is

Neeru is looking at her kids backpack and wants to compare their masses. What is the best tool Neeru can use to find the mass of each backpack? A) graduated cylinder B) balance C) ruler D) beaker

The first law of thermodynamics states that. How is this also a statement of the principle of conservation of energy? A. A change in internal energy causes work to be done and heat to flow into the system. B.

From what class (es) of elements is the following compound made? nitrogen dioxide metal and metalloid two metals metal and nonmetal two nonmetals

If I drink two 5 hour energy drinks. Will I have twice the amount of energy for 5 hours or 10 hours of energy?

Which statement describes a chemical change? 1. Alcohol evaporates. 2. Water vapor forms snowflakes. 3. Table salt (NaCl) is crushed into powder. 4. Glucose (C6H12O6) and oxygen produce CO2 and H2O.

Gas is squeezed into a small container is it compressibility or heat of combustion

How is pressure related to buoyant force

How are saturated and supersaturated solutions similar?

Cobalt fluoride crystallizes in a closest packed array of fluoride ions, with the cobalt ions filling one-half of the octahedral holes. What is the formula of this compound?

When you get into a parked car in the summer time, the metal clip is hot and the seat belt fabric is not. What has a higher specific heat, the metal clip or the seat belt fabric? Think about the definition of specific heat.