How many calories are needed to raise the temperature of 25 grams of water form 50°C to 70°C. The specific heat of water is

1cal/g °C

A. no color change was observed indicating that changing temperature does not affect equilibrium. b. increasing the temperature changes the solution to blue indicating that the equilibrium shifts to the left and decreasing the temperature changes

The middle ear converts sound from what into vibrations that can be sent through what?

The structural level of a protein least affected by a disruption in hydrogen bonding is the a. primary level. d. quaternary level. b. secondary level. e. All structural levels are c. tertiary level equally affected.

Which term identifies the most probable location of an electron in the wave - mechanical model of an atom?

A sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temperature of 112 ∘C. What is the final volume of the gas, in milliliters, when the pressure and temperature of the gas sample are changed to the following, if the amount

If a new substance is formed in a chemical reaction, what atoms do they consist of?

What is a scientific explanation for a range of hypotheses and observations supported by testing

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong