How many calories of energy must be added to 1 gram of water to increase its temperature by 1°C? A2.5 B4.18 C10 D1

Researchers want to determine the best temperatures for storing batteries. Describe a possible experiment and list the variables to be controlled in the experiment. Be sure to identify the manipulated and the responding variables.

The escape velocity required for gas molecules to overcome the earth's gravity and go off to outer space is 1.12 * 10^3 m/s at 15 degrees Celsius. Calculate the molar mass of a species with that velocity.

What is a reason why ethers have low water solubility? They have symmetrical R groups. They contain the functional group hydroxyl. They have a strong carbon-oxygen double bond. They cannot form hydrogen bonds among themselves

Which particle in the atom has the smallest mass? electron proton neutron photon

An impure sample of table salt that weighed 0.8421 g, when dissolved in water and treated with excess AgNO3, formed 2.044 g of AgCl. what is the percentage of NaCl in the impure sample?

Modern scientists use a version of the metric system called

Which element has a larger ionic radius than calcium? a. sodium b. gallium c. magnesium d. potassium

Which solution contains the largest number of moles of chloride ions? a. 30.00 ml of 0.100m cacl2 b. 10.0 ml of 0.500m bacl2 c. 25.00 ml of 0.400m kcl d. 4.00 ml of 1.000m nacl e. 7.50 ml of 0.500m fecl3?

What is the chemical formula of titanium (II)

Not related to any subject but how do you tell someone you like them?