Answers AA-F26 Physical ScienceLab: Motion

Lab: Motion — Cumulative exam Answers

0 verified answers

Free Preview

Which statement describes the location of most metalloids on the periodic table?

The metalloids are located below metals and above nonmetals within a group.

The metalloids are located below nonmetals and above metals within a group.

The metalloids are located to the right of nonmetals and to the right of metals within a period.

The metalloids are located to the left of nonmetals and to the left of metals within a period.

Free Preview

Particle A has very little mass in comparison to Particle B. Both particles are in the same atom. Which is the best conclusion about Particles A and B?

They have the same charge.

They are located in the nucleus together.

Particle A has a positive charge, and Particle B is neutral.

Particle A orbits the nucleus, and Particle B is located in the nucleus.

When hydrogen peroxide bubbles, it is undergoing a chemical change. Which statement best describes what is happening?

The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.

The atoms in hydrogen peroxide are breaking apart and recombining into the original molecules.

The molecules of hydrogen peroxide remain intact as new types of molecules form and move out of the liquid.

The molecules of hydrogen peroxide remain intact but move more quickly to allow evaporation.

Students are completing a table about a particular subatomic particle that helps make up an atom.What best explains how they should complete the table?

with “Inside the nucleus,” because the particle is a proton

with “Inside the nucleus,” because the particle is a neutron

with “Outside the nucleus,” because the particle is a proton

with “Outside the nucleus,” because the particle is an electron

Which type of reaction is Mg + S → MgS?

polymerization

synthesis

replacement

decomposition

While looking at bromine (Br) on the periodic table, a student needs to find another element with very similar chemical properties but with a different atomic mass. Which best describes the student’s options?

There are two possible elements, and they are directly to the left and right of bromine.

There are two possible elements, and they are directly above and below bromine.

There are many possible elements, and they are all in the same vertical column as bromine.

There are many possible elements, and they are all in the same horizontal row as bromine.

Formaldehyde is an organic compound. Each molecule includes two hydrogen (H) atoms, one oxygen (O) atom, and one carbon (C) atom. Below are the dot structures for each of these elements.Which diagram shows how the covalent bonds most likely form in a formaldehyde molecule?

Option

Rolf prepares four solutions using different solutes as shown in the table below.Which solution is unsaturated?

Solution A

Solution B

Solution C

Solution D

The equation K2O represents the ionic bond between potassium and oxygen. What is the name of the compound?

oxygen potassium

potassium oxygen

potassium oxide

oxygen potassiumide

Which radioactive isotopes did the Curies discover?

polonium and radium

radium and carbon-14

carbon-14 and uranium

uranium and polonium

Lionel has a hot plate, a thermometer, a container of water, a spoon, and a small hammer. Using these tools, Lionel can test several properties of an ionic compound.Which property of the compound will he not be able to test?

atomic structure

melting point

ability to dissolve

brittleness

The diagram shows organisms a diver observed during an ocean dive.

the ocean surface

the ocean floor

the position of the clownfish

the position of the seaweed

Which term best describes all atoms in ionic bonds?

stable

unstable

positively charged

negatively charged

Which metal is most likely to form more than one kind of positively charged ion?

sodium (Na)

barium (Ba)

nickel (Ni)

magnesium (Mg)

What causes an ionic bond to form between sodium and chlorine?

Sodium and chlorine atoms share electrons.

Sodium and chlorine atoms switch electrons.

Sodium atoms gain electrons.

Sodium atoms donate electrons.

A student is trying to determine if a solution is acidic or basic. She does not have any litmus paper. Which would she most likely use to get a reading on her solution?

vinegar

soap

cabbage juice

aquarium water

Which best represents the reaction of calcium and zinc carbonate (ZnCO3) to form calcium carbonate (CaCO3) and zinc?

Ca → ZnCO3 + CaCO3 → Zn

Ca + ZnCO3 → CaCO3 + Zn

CaCO3 + Zn → Ca + ZnCO3

CaCO3 + Zn + Ca → ZnCO3

What kind of acceleration occurs when an object speeds up?

positive

negative

neutral

zero

The table represents the speed of a car in a northern direction over several seconds.

Column 1 should be titled “Time,” and Column 2 should be titled “Velocity.”

Column 1 should be titled “Velocity,” and Column 2 should be titled “Time.”

Column 1 should be titled “Time,” and Column 2 should be titled “Acceleration.”

Column 1 should be titled “Acceleration,” and Column 2 should be titled “Time.”

Which element has fewer than four dots in its electron dot diagrams?

arsenic (As)

sulfur (S)

krypton (Kr)

gallium (Ga)

Did you find these answers helpful?

Lab: Motion — Cumulative exam Answers

More from this Course

TRY EDGENUITY HACKS