What are types of controlled variables

What stored information in a cell?

The density of an unknown crystal is 2.65gmL. If a 4.46 g sample of the crystal is added to a graduated cylinder containing 25.0 mL of water, what will the volume read?

What is the average mass of a single sulfur atom in grams?

A solid sample of metal is dropped into an acidic solution. bubbles form as the metal is dissolved. what kind of reaction have you likely observed?

Which is the processes is not an example of chemical weathering? A) splitting of a rock along a fracture B) rusting of a nail C) dissoulution of calcite (fizzling) D) a rock that has oxidized on the surface

Which isotope is used to date ancient artifacts such as fossils? carbon-12 carbon-14 uranium-238 oxygen-16

If 8.60 grams of methane gas (hint: remember the fuel for the bunsen burner) is in a 2.00 L container at 66oC, what is the pressure in the container?

Insulator in a sentence, with science.

Aqueous hydrobromic acid reacts with solid sodium hydroxide to produce aqueous sodium bromide and liquid water.

Is calcium fluoride a pure substance, element, compound, or mixture?