What determines the mass number of an element?

the number of protons minus the number of electrons

the number of protons

the total number of protons, electrons, and neutrons

the total number of neutrons and protons

How many significant digits are in the number 101.0100? A. 4 B. 5 C. 6 D. 7

When a neat, ordered chemical is changed into a more chemical, there is an increase in what?

Which trait would most likely lead scientists to investigate folk remedies of tribes living in rain forest for new medicine

True or false nuclear fusion is when two nuclei combine to make a bigger one

Use dhe References to access inportaat valbes ifneeded for ais A sample of 2.601 grams of a compound containing carbon and hydrogen reacts with oxygen at elevated temperatures to yield 8.793 grams of CO2 and 1.800 grams of H2O.

How to tell the difference between ionic and covalent bonding?

The combustion of propane may be described by the chemical equation C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) How many grams of O2 (g) O2 (g) are needed to completely burn 83.3 g C3H8 (g) ?

Was the relationship among temperature, heat, and thermal energy?

What will most likely happen when a warmer air mass exists above a polar ice sheet? The temperature of the ice sheet will be lowered. Heat will be transferred from the air mass to the ice. The air mass will exert high pressure and rise upwards.

A 2.00 L sample of gas at 35 C is to be heated at constant pressure until it reaches a volume of 5.25 L. To what Kelvin temperature must this sample be heated?