Physical Science Exam Review
Remember “like dissolves like”
Yüklə 158,49 Kb.
|
Remember “like dissolves like”Glencoe Physical Science: Chapter 22 _____ 252. When an aqueous solution of sodium chloride is made, the ___ is sodium chloride. A) solute B) solvent C) concentration D) product
crystallized. The original solution was A) saturated B) unsaturated C) supersaturated
A) increases B) decreases C) has no effect on _____ 255. Decreasing temperature ___ the rate of dissolving a gas in a liquid. A) increases B) decreases C) has no effect on _____ 256. Adding more solute to a solvent ___.
_____ 257. The maximum number of grams of solute that will dissolve in 100 g of solvent at a certain temperature is the ____ of the solute. A) solubility B) dilution C) electrolyte D) saturated _____ 258. Any solution that can hold more solute at a given temperature is ____. A) saturated B) unsaturated C) supersaturated _____ 259. A solution that has 4 g of KCl dissolved in 100 mL of water is ___ compared to a solution that has 30 g of KCl dissolved in 100 mL of water. A) dilute B) concentrated C) saturated
_____ 262. A solution that contains all the solute it can hold at a given temperature is _ A) diluted B) saturated C) supersaturated D) unsaturated
_____ 264. In a salt water solution, the salt is the A) solute B) solvent C) dilution D) liquid
_____ 266. A crystal of solute was dropped into a solution and it dissolved. The original solution was A) saturated B) unsaturated C) supersaturated _____ 267. A polar substance will most likely dissolve in
6.05—Assess the indicators of chemical change including:
Glencoe Physical Science: Chapters 15 & 21 _____ 268. The formation of a precipitate when two solutions are mixed is an example of
_____ 269. What is an insoluble solid that forms as the result of a chemical reaction? A) a precipitate B) an inhibitor C) an aqueous D) a catalyst
_____ 271. Three indications that a chemical reaction has occurred are
are smaller
and an odor is noted
insoluble solid
_____ 272. In all chemical reactions, energy is
_____ 273. A substance that speeds up a chemical reaction but does not get changed by the reaction is a/an A) inhibitor B) catalyst C) preservative _____ 274. Substances that speed up chemical reactions in living things and make life reactions take place at faster speeds and lower temperatures are called A) inhibitors B) enzymes C) preservatives
A) inhibitors B) enzymes C) catalysts 6.06—Compare and contrast the composition of strong and weak solutions of acids or bases:
Glencoe Physical Science: Chapters 22 & 23 _____276. If a substance produces ___ ions when it is dissolved in water, it is an acid. A) oxygen B) hydrogen C) nitrogen _____ 277. When an acid is dissolved in water, one of the particles that is produced is A) H+ B) O 2- C) OH- D) N 3- _____ 278. Which of the following is an acid? A) CaCO3 B) H2SO4 C) HCN D) all of the above E) only B and C
_____ 280. Which kind of acid is naturally found in your stomach?
_____ 281. The hydronium ion has the formula ___. A) OH- B) H3O+ C) HOH+
A) acids B) bases C) alcohols _____ 283. Hydroxide ions are formed when ___ are dissolved in water. A) acids B) bases C) alcohols _____ 284. Organic acids contain the group ___. A) -OH B) –COOH C) H3O+ _____ 285. A substance has a slippery feel and conducts electricity. The substance is probably A) an acid B) a base C) a salt D) aqueous _____ 286. The reaction of an acid and a base is called A) titration B) neutralization C) saponification D) pickling _____ 287. The reaction of an acid and a base always produces A) sodium chloride B) water C) soap _____ 288. A base that only partly dissociates in an aqueous solution would be described as A) dilute B) weak C) strong D) concentrated _____ 289. What is the difference between a strong acid and a weak acid?
_____ 290. What is the difference between a strong base and a weak base?
_____ 291. The pH of a solution measures the
_____ 292. A solution with a pH of 7 is ___. A) acidic B) basic C) neutral
A) acidic B) basic C) neutral _____ 294. A solution with a pH of 5 is ___. A) acidic B) basic C) neutral _____ 295. A solution with a pH of 3 will turn litmus paper __. A) red B) blue C) white _____ 296. A solution with a pH of 11 will turn litmus paper ___. A) red B) blue C) white _____ 297. When an acid is reacted with a base, the products are
_____ 298. The process of determining the concentration of one solution by reacting it with another solution of known concentration is called A) saponification B) neutralization C) titration Yüklə 158,49 Kb. Dostları ilə paylaş:
|