Hydrogen is a liquid below what temperature?

a.

100 degrees C

c.

-183 degrees C

b.

-253 degrees C

d.

0 degrees C

4 type of molecular models

To what temperature must it be raised to triple the rms speed of its molecules?

The solubility product constant of calcium sulfate, CaSO4, is 7.10*10-5. Its molar mass is 136.1 g/mol. How many grams of calcium sulfate can dissolve in 69.0 L of pure water?

Which of these outcomes is conclusive evidence that mixing sugar in water is a physical change

Lars is balancing equations with his study group. He is unsure about one equation because each member of the study group came up with a different answer.

Atoms or groups of atoms with a negative charge

What is true when two reactants combine in an exothermic reaction?

William Tell had only one son and had to shoot an apple from the top of his son's head with his bow and arrow. If you were William Tell and you loved your son, would you rather be accurate or precise?

Sugar burns when heated on a skillet physical or chemical change

What other means of qualitative analysis are used to identify metals