If Ba, Barium gave those two dots away to oxygen, then the charge is a: + 2 b-200

What is the mass number of an ion with 106 electrons, 158 neutrons, and a + 1 charge?

The specific volume of a substance is the volume per gram of substance. Specific volume is an example of A. A physical extensive property B. A chemical extensive property C. a chemical intensive property D. a physical, intensive property

What do you think happens to the length of time it takes the planets to orbit the sun as they get further away? Explain answer.

A water treatment plant needs to maintain the ph of the water in the reservoir at a certain level. To monitor this, you should

Identify the spectator ions for the reaction that occurs when aqueous solutions of lithium sulfide and copper (ii) nitrate are mixed. a. cu2 + and no3- b. li + and cu2+ c. li + and no3- d. s2 - and cu2+ e. no spectator ions are present.

A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the volume of the gas at 100. degrees C?

Jack wants to know if it takes longer for warm water to freeze into ice cubes than cold water, so he performed the following experiment. Jack placed 50 mL of water in the refrigerator and allowed it to cool to a temperature of 4°C.

How to calculate average concentration

Suppose that you measure a pen to be 10.5 cm long. Convert this to meters.

How are amounts of hydrogen and oxygen gas made from the electrolytic decomposition of water related to the chemical formula of water?