6.6AB & 8.5D Review

Which of the following sets of elements contains members with similar chemical reactivity?

• Ni, Cu, Zn

• C, N, O

• F, Cl, Br

• Pd, Ag, Cd

Tags

NGSS.HS-PS1-2

Which of the following pairs of elements is in the same period?

• Na and Ca

• P and S

• C and Si

• As and Sb

Sample 1 in the table above would best be identified as which of these metals?

• Copper

• Tin

• Titanium

• Magnesium

A student is given a small block of wood that has a mass of 2.32 grams.  The volume of the block is 4.0 cm³.  What is the density of this block of wood?

A group of students were given several pieces of wood to create a bridge in their science class.  The wood had a total volume of 50 cm³ and a total mass of 6.5 grams.  What type of wood were these students given?

• Balsa

• Oak

• Pine

• Maple

Tags

NGSS.MS-PS1-2

Iron (Fe) is an element found on the Periodic Table.  Iron’s atomic number is 26.  Which of the following properties would iron not be expected to have based on its placement on the Periodic Table?

• Good electrical insulator

• Highly malleable and ductile

• Shiny, metallic luster

• Conducts heat well

How many atoms of carbon are in a molecule with the formula CH₃SCN?

• 3

• 1

• 2

• 7

Tags

NGSS.MS-PS1-1

Iron sulfate, Fe₂(SO₄)₃ is a yellow compound that has several commercial uses.  How many sulfur atoms are represented in the formula Fe₂(SO₄)₃?

Tags

NGSS.MS-PS1-1

The table shows the chemical formulas of four different substances.  Which substances have the same number of nitrogen atoms?

• Substances 1 and 2

• Substances 2 and 4

• Substances 1, 2 and 3

• Substances 1 and 4

Tags

NGSS.MS-PS1-1

What information could a scientist gain from only the formula of an organic compound?

• The state of matter of the compound at room temperature

• The number of molecules that are contained in a sample of the substance

• The number of atoms of each element that are present in the compound

• The exact arrangement of the atoms in the structure of organic compound

Tags

NGSS.MS-PS1-1