Compounds/Chemical Formulas/Bonds-8th
Authored by Odaine Lorne
Science
8th Grade
NGSS covered
Used 5+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The chemical formula for water is H2O. Use the periodic table to identify which atoms H2O is made of.
Helium and osmium
Helium and oxygen
Hydrogen and osmium
Hydrogen and oxygen
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statements is NOT true?
Aluminum hydroxide and carbonic acid contain the same number of oxygen atoms.
Ethylene glycol contains more hydrogen atoms than the other three chemicals.
Ethylene glycol has the most types of atoms and the highest number of atoms.
Magnesium hydroxide and carbonic acid have the same number of atoms.
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statements is true?
All the sweeteners are elements.
Sucralose contains calcium.
Sucrose has the most types of atoms and the fewest total atoms.
The three artificial sweeteners have more types of atoms and more total atoms than sucrose.
Tags
NGSS.MS-PS1-1
4.
OPEN ENDED QUESTION
1 min • 1 pt
Which model can represent a molecule of carbon dioxide, CO₂?
Evaluate responses using AI:
OFF
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a carbon dioxide molecule, each oxygen atom shares four electrons with the carbon atom. What kind of bond is this?
ionic
nonpolar covalent
double covalent
triple covalent
Tags
NGSS.HS-PS1-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the compound H₂O, the electrons in the bonds are unequally shared between oxygen and hydrogen. What kind of bond is this?
ionic bond
negative bond
polar covalent bond
nonpolar covalent bond
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which kind of molecular model shows electrons individually?
dot diagram
structural formula
ball-and-stick model
space-filling model
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