Binary systems account for approximately what proportion of star systems in the universe

List the 4 main components of air in their molecular form.

If a plant uses 44 grams of carbon dioxide and 18 grams of water to produce 32 grams of oxygen, how many grams of glucose are produced for the plant to use 6H2O + 6CO2 - - > C6H12O6 + 6O2

You have a new box of breakfast cereal that contains cereal bits and fluffy marshmallows bits. your brother shakes the box and then pours himself a bowl of marshmallows bits, leaving you with a bowl of only cereal bits.

As an electron in a hydrogen atom moves from the second principal energy level to the first principal energy level, the energy of the atom: 1) decreases 2) increases 3) stays the same

What is the relationship between a compound and the elements it is made from? A. The compound takes on a mixture of properties from the elements. B. The compound takes on the properties of the stronger element. C.

A radioactive nuclide that is used for radiation therapy for cancer has 33 neutrons and a mass number of 60. Which is the correct symbol for this nuclide? Superscript 27 subscript 60 upper C o. Superscript 33 subscript 60 upper C o.

Ions are atoms that have an electrical charge because they have gained electrons or lost electrons. If a neutral atom GAINS an electron, what is it's charge? Positive Negative Neutral

Can the groups of the periodic table be numbered in two different ways

Zn (s), Zn (NO3) 2 (0.30 M) || Ag (s), AgNO3 (0.010 M) 1. Draw the schematic of the electrochemical cell that you created including all the components (metals, solutions, salt bridges, voltmeters, etc.) in this portion of the experiment.

What change occurs in the atoms as we move down each chemical family?