Milestone Practice 2

Based on its location on the partial periodic table shown above, which element would you predict has chemical properties that are most similar to argon (Ar)?

• Chlorine (Cl)

• Nitrogen (N)

• Helium (He)

• Zinc (Zn)

How many atoms are in the reactants?

• 4

• 5

• 6

• 7

Tags

NGSS.MS-PS1-1

How many atoms are in the products?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-5

Copper wire, an iron nail, and a battery can be used to make

• a lodestone. 

• a permanent magnet. 

• an electromagnet. 

• a compass.

Anna learned that every magnet has a north and a south end called poles. She notices that when she puts the north end of a magnet near the south end of another magnet, they pull together. What can Anna conclude from her observation?

• Only the north pole has an attractive force.

• The north pole picks up iron nails.

• Opposite poles of magnets attract.

• Opposite poles of magnets repel.

Which equation is balanced?

• PbO₂ + 2H₂

• SO₂ + H₂0 --> H₂SO₄

• 2Na + 2H₂O --> 2NaOH + H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the right part of a chemical equation called...
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5

MOST of the elements on the Periodic Table belong to which class?

• Metals

• Metalloids

• Nonmetals

A substance made up of two or more chemically combined elements is —

• Element

• Compound

• a mixture

• a solution

Tags

NGSS.MS-PS1-1