What is the approximate mass of iron

What is the pH of a 6.4*10-10 m oh - solution?

2. The temperature of CO2 gas at 99.3 mmHg was measured at 455 K. What will be the new temperature if the pressure is adjusted to 202.6 mmHg? Assume constant volume.

What is the formula for the binary compound that decomposes H2 and Br2

What happens to light when it enters a lens? A. It is refracted. B. It speeds up. C. It becomes brighter. D. It is reflected.

Choose all the true statements concerning the law of conservation of mass: a) When ice melts, mass is gained since water is more dense than ice.

How do bacteria get their food? Select all that apply. manufacture it themselves obtain it from decaying organic matter obtain it parasitically from living organisms obtain it from the soil and atmosphere

A test done under standard conditions is referred to as what in chemistry? A. STP B. Control C. Rate Constant D. Kinetics E. None of the above

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?

Which type of matter are made of atoms? a. solids only b. solids and liquids only c. plasma only d. solids, liquids, gases and plasma

Read the excerpt from a science text. In our experiment, we filled two identical glasses with water. To one glass, we added two tablespoons of salt and stirred. To the other glass, we added four drops of food coloring and stirred.