Chemica reactions

In a chemical equation, is it true that -

• the reactant side and product side can have different numbers of atoms for each element
• there can be different elements on the reactant side and the product side
• an element or compound must be accompanied by a phase change
• the coefficients indicate the number of molecules of each reactant used and the number of molecules of each product made

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NGSS.MS-PS1-1

NGSS.MS-PS1-5

The formula below represents the most common carbohydrate known as glucose. Which information can be determined from the chemical formula?
C₆H₁₂O₆

• The structural arrangement of the atoms in a glucose molecule
• The color of a glucose molecule
• The size of a glucose molecule
• The number of atoms of each element in a glucose molecule

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NGSS.MS-PS1-1

Which of the following equations demonstrates an actual chemical reaction that forms a new substance?

• A
• B
• C
• D

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

The reactants are on the left side of the chemical equation.

• True
• False

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NGSS.MS-PS1-5

The force that holds 2 atoms together is called a ________________.

• Chemical Reaction
• Chemical Bond
• Diatomic Chemical
• Glue

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NGSS.MS-PS1-1

A molecule made of 2 atoms is called a ____________________.

• Diatomic Molecule
• Chemical Bond
• Product
• Reactant

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NGSS.MS-PS1-1

Which of the following is NOT an example of a chemical reaction?

• Wood Burning
• A cake baking in an oven
• Melting Ice Cream
• Mixing Vinegar and Baking Soda

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NGSS.MS-PS1-2

How many atoms of Carbon are in one molecule of table sugar (C₁₂H₂₂O₁₁) ?

• 12
• 22
• 11
• 1

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NGSS.MS-PS1-1

What are the reactants in the chemical equation pictured?

• CH₄ and CO₂
• CH₄ and O₂
• CO₂ and H₂O
• O₂ and H₂O

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the products of the chemical reaction pictured?

• CH₄ and CO₂
• CH₄ and O₂
• CO₂ and H₂O
• O₂ and H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5