What is the density of a substance that weighs 100g and has a volume of 68cm3?

The ion with 3 + charge 28 electons and a mass number of 71

What is vapor pressure and why does it change with temperature?

Which best explains how objects become electrically charged? A. Protons are rubbed from one object to another. B. A magnet rubbed on a rope electrically charges the object. C. Charged atoms are rubbed from one object to another. D.

Mole is taken in units of gram-mole. on this basis, how many atoms are there in a pound-mole of a substance?

Which of the following describes the cause of acid rain?

What ions would you expect to find when an acid dissolves in water?

What volume is occupied by 3.760 g of oxygen gas at a pressure of 88.4 kPa and a temperature of 19°C? Assume the oxygen is ideal. Use "8.314" for R. Hint: Convert 3.

You place a pan of water on the stove and turn on the heat. The water begins to boil. What is happening?

A camcorder has a power rating of 11 watts. If the output voltage from its battery is 8 volts, what current does it use?

When pyruvate molecules enters the mitochondrion, one of its carbon atoms becomes a part of a molecule of?