ID the significant figures: 110.2340: 0.005211: calculate 100.012 +1.11156 = Hom
ID: 532489 • Letter: I
Question
ID the significant figures: 110.2340: 0.005211: calculate 100.012 +1.11156 = Homogeneous mixtures are also known as___. A) solids: B) compounds: C) elements: D) substances: E) solutions The nucleus of an atom does not contain____. A) protons B) protons or neutrons C) neutrons D) subatomic particles E) electrons In the symbol shown below, x = ____. ^14_X C A) 7 B) 13 C) 12 D) 6 E) not enough information to determine Predict the charge of the most stable ion of aluminum. A) 3 B) 1+ C) 2+ D) 1- E) 3+ The element chlorine is in a group known as the___. A) transition metals B) alkali metals C) halogens D) noble gases E) alkaline earth metalsExplanation / Answer
4.) a) 7 b) 4 c) 6 (100.012+1.11156=101.12356= 101.124)
5.) E) solutions
6.) E) electrons
7.) D) 6
8.) E) 3+
9.) C) Halogens