A sample of metal has a mass of 12.9 grams and a volume of 29.8 ml. what is its density?

What shows the organism structures change over Generations this is science work btw

What part of an atom bonds with other atoms

The half-life of radon-222 is 3.8 days. If a sample currently contains 3.1 grams of radon-222, how much radon-222 did this sample have 15.2 days ago? a 12.4 grams b 47.1 grams c 49.6 grams d 57.8 grams

Isotopes of uranium are used as nuclear fuel in power plants. true false

in a laboratory, 178.8 g of water is seperated into hydrogen gas and oxygen gas. the hydrogen gas has a mass of 20.0 g. what us the mass of oxygen gas produced?

Chromium 6 is commonly referred to as?

How does a parallel circuit differ from a series circuit? A. A parallel circuit had one path for electrons, but a series circuit has more then one path. B. A series circuit has one path for electrons, but a parallel circuit has more then one path. C.

Which of the following is an example of potential energy? -none of the above -A person jumping on a trampoline -a book on the shelf -A person running in place

One atom of silicon can properly be combined in a compound with a. three atoms of hydrogen. b. four atoms of calcium. c. two atoms of oxygen. d. one atom of chlorine.

How many carbon atoms are present in a mole of 12C?