.(a) 29,500 (c) 650,000,000(b) 0.000082 (d) 0.0100

Introductory Chemistry 5
How many neutrons are in an atom with each atomic number and mass number? (a) Z = 28, A = 59 (b) Z = 92, A = 235 (c) Z = 21, A = 46 (d) Z = 18, A = 42

Chemistry 12
Write Lewis structures for BrF3, ClF5, and IF7. Identify those in which the octet rule is not obeyed.

Organic Chemistry, 9
Given the following partial structure, add a substituent X to C-1 so that it satisfies the indicated stereochemical requirement What is the ACCX torsion (dihedral) angle in each? (a) Anti to A (c) Anti to C-3 A 3 1 (b) Gauche to A (d) Gauche to C-3

Campbell Biology 10
Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids. Both digestive processes a. occur inside cells in most animals. b. add a water molecule to break bonds. c. require a low pH resulting from HCl production. d. consume ATP.

Principles of Economics 6
What are the two subfields into which economics is divided? Explain what each subfield studies.

Chemistry 13
Because fluorine has seven valence electrons (\(2s^2 2p^5\)), seven covalent bonds in principle could form around the atom. Such a compound might be \(FH_7\) or \(FCl_7\). These compounds have never been prepared. Why?

Principles of Economics 9
A sudden increase in business pessimism shifts the aggregate-_________ curve, leading to _________ output. a. supply; lower b. supply; higher c. demand; lower d. demand; higher

Chemistry for today : general, organic, and biochemistry 9
How many mL of a 0.100 M NaOH solution would be needed to titrate 0.156 g of butanoic acid to a neutral pH endpoint?