What is the final temperature of 78g sample of water at 99°C if it loses 6500 J of heat energy?

As you go across a period the atomic radius decreases because ...

If one penny weighs 3.16 g, what would be the dollar value of 1 metric ton of pennies? (knowing that 1 metric ton = 1000 kg)

The prefix centi - means 103 10-2 10-3 102

If all other conditions are held constant when the temperature of a reaction system increases reaction rate A. Increases B. Decreases C. Is not affected by temperature

Name 5 careers that require knowledge in chemistry

During the combustion of 2.00 g of coal, the temperature of 500 g of water inside the calorimeter increased from 25.0°c to 43.7°c. the specific heat of water is 4.18 j/g·°c. how much heat did the reaction generate?

Catalysts are substances that increase the rate of reaction but can be recovered unchanged at the end of the reaction. Catalysts can be classified as either homogeneous (same state as reactants) or heterogeneous (different state than reactants).

How many molecules are there in 79g of Fe2O3?

Which of the following elements is an alkall metal?

A student mixes 0.50 L of 0.0020 M Ba (NO3) 2 solution with 0.50 L of 0.0080 M Na2SO4 solution. Which equation shows the proper set-up to calculate molar concentration of Ba2 + ions in the new solution? (0.0020 M) (1 L) = (? M) (0.0020 M) (0.