Chem SOL Review #1

Chemistry SOL Review
Session #1:

Scientific Investigation
Atomic Structure & Periodic Relationships

All of the questions on this site come from released test materials

J-Lab

Access code: BVQ4-RR84-QDXCM

HSHS Chem SOL Remediation Schoology Course

Resources available for you

Your SOL test date: May 7th

• There are 60 questions on the SOL.

• You do NOT have to answer all the questions correctly to pass. It is not expected that you can answer every question correctly. 

• Currently on the Chemistry SOL, you only need to get 27 out of 50 correct. That comes out to be a 54%. Other SOL tests have other percentages.

• Attempt to answer ALL of the questions and DO NOT leave any blanks.    There is no penalty for guessing.

• A word of caution about changing answers - usually your first choice is correct.  Only change answers if you’re certain the first choice was wrong.

Today's Agenda (4/16)

1. Practice with Mrs. Q

2. Whole-Group Review with Mrs. M

3. Independent Study/Study Hall

Multiple Choice

A student measured the mass of a small object and found it to be 56.0 grams. The object's mass is known to be 55.0 grams. What is the percent of error in the student's measurement?

• 18%

• 1.8%

• 0.18%

• 0.018

Multiple Choice

According to the periodic table, which of the following series of elements is ordered according to decreasing reactivity?

• He, Cs, Si, Mg

• Cs, Mg, Si, He

• Si, He, Cs, Mg

• Mg, Si, Cs, He

Multiple Choice

Radioactive iodine-131 has a half-life of eight days. The amount of a 200.0 gram sample left after 32 days would be -

• 6.25 g

• 12.5 g

• 25 g

• 50 g

Multiple Choice

The most efficient way to determine whether a reaction is an exothermic chemical reaction is to use -

• 
  an oxygen probe

• a temperature probe

• a pressure probe

• a pH probe

Multiple Choice

Which of these laboratory techniques is best to separate a solid from a liquid to recover the liquid?

• Titration

• Chromatography

• Filtration

• Vaporization

Multiple Choice

Each of four groups of students determined and recorded the melting point of a solid compound. If the actual melting point is 113°C, which group had the best precision?

• Group 1

• Group 2

• Group 3

• Group 4

Multiple Choice

A student is studying the effects of several solutions on the prevention of the browning of apples. The student used solutions having different pH values and immersed three apple slices in equal volumes of each of the solutions. Which of these is the independent variable in this investigation?

• pH values of the solutions
• volume of solutions

• shade of brown

• Number of apple slices

Multiple Choice

Which element has 16 neutrons, 15 protons, and 15 electrons?

• Sulfur (S)

• Phosphorus (P)

• Gallium (Ga)

• Zinc (Zn)

Multiple Choice

While English physicist J. J. Thomson was carrying out experiments on cathode rays, he was able to determine that the rays consisted of particles he called "corpuscles." These particles were later named -

• protons

• electrons

• gamma rays

• neutrons

Multiple Choice

A chemist is examining an unidentified element sample with oxidation states of +2, +3, and +6. The element has a shielding effect similar to that of potassium (K). Which statement about the unidentified element is most likely true?

• It is a mix of three unstable isotopes of potassium.

• 
  It has the same number of neutrons as potassium.

• It is a transition metal from the same period as potassium.

• It is one of the heaviest elements in potassium's group

Multiple Choice

A student hypothesizes that bromine (Br) has different chemical properties from krypton (Kr). The periodic table supports this hypothesis by indicating that -

• bromine is a metal while krypton is a nonmetal

• bromine and krypton are members of the same family

• bromine and krypton have different numbers of valence electrons

• one mole of bromine is heavier than one mole of krypton

Multiple Choice

A neutral atom of calcium has 20 electrons. Calcium forms a 2+ ion. How many electrons does a calcium ion have?

• 2

• 20

• 22

• 18

Multiple Choice

What are the numbers of protons, neutrons, and electrons in an isotope of titanium with a mass number of 50?

• 50 p, 22 n, 50 e

• 22 p, 28 n, 22 e

• 28 p, 22 n, 22 e

• 22 p, 22 n, 28 e

Multiple Choice

Which of these elements has the smallest atomic radius?

• oxygen (O)

• sulfur (S)

• sodium (Na)

• Beryllium (Be)

Multiple Choice

The element chlorine exists as two naturally occurring isotopes. Cl-35 occurs 75% of the time and Cl-37 occurs 25% of the time. Which of the following calculations should be used to calculate the correct average atomic mass of chlorine?