Whenever a molecule is oxidized, another molecule must be reduced.

a. True

b. False?

Which mixture will not yield hydrogen gas? (A) sodium and water (B) calcium and water (C) zinc and hydrochloric acid (D) zinc and concentrated nitric acid (E) steam and red hot iron

What type of heat transfer occurs when hot water flows through cool water?

Which of the following is essential to the continuation of every species of living organisms? A. the ability to digest vegetation B. the ability to reproduce C. to ability to move from place to place D. the ability to consume meat

What is not true about an ionic compound? a. it is a salt b. it is held together by ionic bonds c. it is comprised of anions and cations d. it does not exist as a molecule e. none of the above

What happens when the cell of a unicellular organism divides? Text to speech A:A. The unicellular organism dies. B:B. The unicellular organism grows larger. C:C. The unicellular organism creates a new organism. D:D.

The flame from my candle gives off black smoke heat and light what type of changes do these indicate

Which one of the following processes results in a decrease in the number of neutrons? corrosion electron capture gamma emission positron emission alpha emission

Calculate the root mean square velocity of F2, Cl2, and Br2 at 304 K.

The total pressure inside a 1.62 cylinder kept at 35°C is 1.15 atm. If the volume of the cylinder drops to 0.74 L and the temperature remains the same, what is the new pressure inside the cylinder?

What is difference between tempering and aging?