An alpha particle is not a neutral atom. it has a charge of 2. why is this the case?

A compound is found to contain 6.1% hydrogen and 93.9% oxygen. Find it's empirical formula.

A student performs an exothermic reaction in a beaker and measures the temperature. If the thermometer initially reads 35 degrees Celsius, what is a possible reading of the thermometer after the reaction? A. 35 degrees Celsius B.

Some elements are solids at room temperature true or false

How is the electron configuration of an anion different from that of the corresponding neutral atom? how is the electron configuration of an anion different from that of the corresponding neutral atom?

What is the maximum number of moles of H2O that can be produced when 2.0 moles of NH3 are completely reacted

2. How can you use mass and volume to find density of a substance?

Grayson wants to build an inexpensive shelter at his bus stop that he can stand in when it rains. What material would be best for building a shelter that is both strong and waterproof

A sample of gas has a volume of 0.600 L at a temperature of 303 k. If the volume is increased to 0.900 L, what is the new temperature?

What is the correct name of the compound Hg2CrO4? (a) Mercury (l) chromate (b) Mercury (ll) chromate (c) Mercury dichromate (d) Dimercury chromate (e) Monomercury chromate

Is Free Energy positive or negative in boiling water?