Midterm Review

Which tool can be used to measure mass?

A. Graduated cylinderB. BalanceC. RulerD. Thermometer

Which of the following is a unit for volume? Choose all correct answers

A.gB.mLC.cm³D.m

There is 50 mL of water in a cylinder. After a marble is added, the water level rises to 70mL. What is the volume of the marble?

A.120 mL C. 3500 mL

B. 20 mL D. 1.4 mL

A box measures 5cm x 5cm x 2cm. What is the volume of the box?

A.12 cm C. 12 cm³

B.50 cm D. 50 cm³

Mass is a measure of the—

A.Amount of matter in objectsB.Space objects occupyC.Distance between 2 pointsD.KE of the molecules in objects

Which of the following IS NOT a physical property?

A.Luster (shiny)B.OdorC.pHD.Volume

Which of the following is the best sign of a chemical reaction?

A.Odor changeB.Temperature/energy changeC.Gets bigger or smallerD.Color change

Which of the following has definite volume, but no definite shape?

A.PlasmaB.SolidC.GasD.Liquid

What is the independent variable in the table below?

Plant number

Light color Avg. daily growth

Total growth in 6 weeks

1 Sun light .5 cm 3.2 cm

2 Red .23 cm 2.1 cm

3 Green .1 cm .45 cm

A. Plant number C. Avg. daily growthB. Light color D. Total growth

Toward left—I manipulated this to affect growth

What is the control group (plant) in the table below?

Plant number

Light color Avg. daily growth

Total growth in 6 weeks

1 Sun light .5 cm 3.2 cm2 Red .23 cm 2.1 cm3 Green .1 cm .45 cm

A. Plant 1

B. Plant 2

C. Plant 3I did not change the light for this one. I only observed it.

Who proposed this model of the atom?

A.DaltonB.ThomsonC.BohrD.Rutherford

Which is the most correct model of the atom?

A.

B.

C.

D.

Electron Cloud Model

What type of element is nitrogen?

A.NonmetalB.MetalloidC.MetalD.Gas

Which element is most reactive?

A.Neon—NeB.Aluminum-AlC.Potassium-KD.Magnesium-(Mg)

Left side of table

Identify the element which is shiny, a good conductor, has 2 energy levels in the atom and 4 electrons.

A.NitrogenB.NeonC.BerylliumD.Sodium

Go through each property √X ?

Which of the following is NOT true about the element Carbon? Select all correct answers.

A.It is a solidB.It has 8 protonsC. It has 12 neutronsD.It has 6 valence electrons

Add word “NOT” to your question

Which is NOT true about the element potassium (K)?

A.It has 20 neutronsB.It has 1 valence electronC. It is in period 1D.It has similar properties to

Sodium (Na)

Which element has 4 valence electrons?

A.Silicon (Si)B.Calcium (Ca)C.Beryllium (Be)D. Argon (Ar)

Which of the following most likely forms a positive ion?

A.Lithium (Li)B.Boron (B)C.Helium (He)D.Oxygen (O)

Left side of table

Which equation is balanced?

A. S8 + F2 ---> SF6

B. 4H2 + 2O2 ---> 4H2O

C. H2 + Cl2 ---> HCl

D. H2 + O2 ---> H2O

Which of the following shows a covalent bond?

A.MgClB.NaO2

C.NO2

D.KF2

IN which type of bond are electrons shared?

A.ConstantB.CovalentC.IronicD.Ionic

IN which type of bond are electrons shared?

A.ConstantB.CovalentC.IronicD.Ionic

What is formed when an atom loses electrons?

A. Neutral ionB. Positive compoundC. Positive ionD. Negative ion