Intro To Chemical Reactions Slide Show

Posljednje ažuriranje about 4 years ago

20

Biblioteka

Intro To Chemical Reactions Slide Show

Posljednje ažuriranje about 4 years ago

20

Obavezno

1

What happens during a chemical reaction?

Atoms are not rearranged to from a new substance

New substances are formed with the rearrangement of atoms

No new substance is formed

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Substances that are destroyed by the chemical change are the reactants.

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What does the + sign mean

separates just 2 reactants products

separates 2 or more reactants or products

separates zero reactants or products

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Glow sticks are an example of a chemical change

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Hand warmers are an example of chemical changes

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Vinegar and baking soda is an example of a chemical change.

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Rust is not an example of a chemical change.

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Slime is not an example of a precipitate.

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What is the subscript in a chemical equation?

is the large-sized number on the bottom right of the symbol

is the small-sized number located on the bottom right of the symbol

is the small-sized number located next to the element

is the large-sized number located next to the element

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Exothermic energy aborbs heat energy from its surroundings.

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Obavezno

3

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3

Obavezno

1

What happens during a chemical reaction?

Atoms are not rearranged to from a new substance

New substances are formed with the rearrangement of atoms

No new substance is formed

Obavezno

2

What 2 elements are shown in the slide to your right?

Hydrogen and oxygen

Hydrogen and osmium

Helium and osmium

Helium and oxygen

Obavezno

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What does the + sign mean

separates just 2 reactants products

separates 2 or more reactants or products

separates zero reactants or products

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What does the arrow/yield sign mean?

separates reactants from products

separates elements form compounds

separates products from reactants

Obavezno

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Glow sticks are an example of a chemical change

Tačno

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Obavezno

1

Hand warmers are an example of chemical changes

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Obavezno

1

Vinegar and baking soda is an example of a chemical change.

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1

Rust is not an example of a chemical change.

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1

Slime is not an example of a precipitate.

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What 2 elements are shown in the slide to your right?

Hydrogen and oxygen

Hydrogen and osmium

Helium and osmium

Helium and oxygen

What side of the yield arrow do you find the reactants?

left

D

right

C

Substances created by the chemical change are called products

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What side of the yield arrow do you find the products?

Right

Left

What does the arrow/yield sign mean?

separates reactants from products

separates elements form compounds

separates products from reactants

What is the subscript in a chemical equation?

is the large-sized number on the bottom right of the symbol

is the small-sized number located next to the element

is the large-sized number located next to the element

is the small-sized number located on the bottom right of the symbol

What elements are present in the chemical equation?

osmium and hydrogen

oxygen and helium

osmium and helium

oxygen and hydrogen

Endothermic energy releases heat energy to its surroundings.

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Intro To Chemical Reactions Slide Show

Intro To Chemical Reactions Slide Show

What happens during a chemical reaction?

Substances that are destroyed by the chemical change are the reactants.

What does the + sign mean

Glow sticks are an example of a chemical change

Hand warmers are an example of chemical changes

Vinegar and baking soda is an example of a chemical change.

Rust is not an example of a chemical change.

Slime is not an example of a precipitate.

What is the subscript in a chemical equation?

Exothermic energy aborbs heat energy from its surroundings.

What happens during a chemical reaction?

What 2 elements are shown in the slide to your right?

What side of the yield arrow do you find the reactants?

Substances that are destroyed by the chemical change are the reactants.

Substances created by the chemical change are called products

What side of the yield arrow do you find the products?

What does the + sign mean

What does the arrow/yield sign mean?

Glow sticks are an example of a chemical change

Hand warmers are an example of chemical changes

Vinegar and baking soda is an example of a chemical change.

Rust is not an example of a chemical change.

Slime is not an example of a precipitate.

What is the subscript in a chemical equation?

What is the subscript in a chemical equation?

What elements are present in the chemical equation?

Exothermic energy aborbs heat energy from its surroundings.

Endothermic energy releases heat energy to its surroundings.

Check all boxes that are examples of exothermic energy

Check all boxes that are examples of endothermic energy

What 2 elements are shown in the slide to your right?

What side of the yield arrow do you find the reactants?

Substances created by the chemical change are called products

What side of the yield arrow do you find the products?

What does the arrow/yield sign mean?

What is the subscript in a chemical equation?

What elements are present in the chemical equation?

Endothermic energy releases heat energy to its surroundings.

Check all boxes that are examples of exothermic energy

Check all boxes that are examples of endothermic energy