Which of the following is represented in the highest percentage by volume in dry air?

a. hydrogen

b. nitrogen

c. oxygen

d. carbon dioxide?

How are blood transported in blood?

What genetic factor contributes to developing heart disease? a. ethnicity b. age c. stress d. diet

Defined the term acid-base indicators

Which of the following only takes into account distance and time? Question 18 options: displacement velocity speed acceleration

Determine the only possible 2 ion for which the following two conditions are both satisfied: The net ionic charge is one-tenth the nuclear charge. The number of neutrons is four more than the number of electrons.

Which one of the following Acids is most likely to hurt you? Acid A: 1.0 M; Acid B: 0.0001M

Which statement accurately describes the atoms of a specific element? explain your answer in complete sentences. A. A Neon, Ne, atom contains 10 electrons outside the nucleus and 11 neutrons inside the nucleus. OR B.

What is the volume of 2.00 moles of chlorine (cl2) gas at stp, to the nearest tenth of a liter?

A reaction of 12.640 g of copper oxide with 0.316 g hydrogen produces 2.844 g of water and Xg of copper. X=_9

If i burn steel wool inside a closed jar or bottle will the oxygen be completly gone