Write the correct formula for the compound corresponding to each of the following atomic quantities. (a) Hydrogen:oxygen, 2:1 ___________________________ (b) Calcium:sulfur:oxygen, 1:1:4 ___________ (c) Carbon:hydrogen:oxygen, 6:12:6 ______________ (d) Aluminum:fluorine, 1:3 _________________ 2. Of the following statements, circle the ones that are FALSE. (a) The nucleus of an atom has zero charge. (b) The shells of an atom contain protons. (c) Number of (protons + electrons) = mass number (d) Number of protons = atomic number 3. How many protons, neutrons, and electrons are in the following atoms or ions? (a) 5324Cr ____ p, ____ n, ____ e (b) 3416S –2 ____ p, ____ n, ____ e (c) 256101Md ____ p, ____ n, ____ e (d) 31H+ ____ p, ____ n, ____ e
1. Write the correct formula for the compound corresponding to each of the following
atomic quantities.
(a) Hydrogen:oxygen, 2:1 ___________________________ (b) Calcium:sulfur:oxygen, 1:1:4 ___________
(c) Carbon:hydrogen:oxygen, 6:12:6 ______________ (d) Aluminum:fluorine, 1:3 _________________
2. Of the following statements, circle the ones that are FALSE.
(a) The nucleus of an atom has zero charge. (b) The shells of an atom contain protons.
(c) Number of (protons + electrons) = mass number (d) Number of protons = atomic
number
3. How many protons, neutrons, and electrons are in the following atoms or ions?
(a) 5324Cr ____ p, ____ n, ____ e (b) 3416S –2 ____ p, ____ n, ____ e
(c) 256101Md ____ p, ____ n, ____ e (d) 31H+ ____ p, ____ n, ____ e
4. USE DIMENSIONAL ANALYSIS to solve the following problems. Show step-bystep with values plugged into the calculation. Express answers to the correct number of
significant figures, and with the correct units next to the answer.
(a) If you have 22.2 mL of blood plasma (which has a density of 1.027 g/mL), then how many
grams of blood plasma do you have?
(b) If you have 22.2 liters of dry air (which has a density of 1.29 g/L), then how many POUNDS
of dry air do you have?
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