Ch. 6 L. 2 Chemical Reactions

Presentation

•

Science, Biology, Chemistry

•

7th - 12th Grade

•

Easy

•

NGSS

MS-PS1-2, MS-PS1-5, MS-PS1-1

Standards-aligned

D Olguin

Used 2+ times

FREE Resource

25 Slides • 35 Questions

Ch. 6 L. 2 Chemical Reactions

By D Olg

Multiple Choice

Chemical change or physical change?

Chemical Change

Physical Change

Multiple Choice

Chemical change or physical change?

Chemical Change

Physical Change

Multiple Choice

Chemical change or physical change?

Chemical Change

Physical Change

Multiple Choice

Chemical change or physical change?

Chemical Change

Physical Change

Multiple Choice

Which of the following could indicate that a chemical change took place?

Change in color

Production of Energy

Formation of Gas

All are correct

Multiple Choice

The difference between a Physical change and a Chemical change is…

Physical change is only a change to the outside appearance.

Chemical change is when matter is changed into something new.

Atoms are rearranged in chemical changes & not in physical.

All are correct.

Multiple Choice

What does a chemical change result in?

A change in state of the substance (ex. liquid to solid)

A change in texture of the substance.

A change in the way atoms are bonded to each other.

A change in the appearance of the substance.

Multiple Choice

When a new substance is formed with different properties than the original substance it is called a...

Chemical change

Physical change

Change in State

Change in appearance only.

Multiple Choice

During Chemical Reactions, the substances that are used are called?

Precipitate

Corrosion

Reactants

Products

Multiple Choice

During Chemical Reactions, the new substances created are called?

Precipitate

Corrosion

Reactants

Products

Multiple Choice

_P₄+_O₂→ _P₂O₃

3 P₄+1 O₂→ 2 P₂O₃

1 P₄+1 O₂→ 2 P₂O₃

1 P₄+ 3 O₂→ 2 P₂O₃

1 P₄+ 2 O₂→ 3 P₂O₃

Multiple Choice

_AgNO₃ + _Cu →_Cu(NO₃)₂ + _Ag

2 AgNO₃ + 2 Cu → 3 Cu(NO₃)₂ + 1 Ag

2 AgNO₃ + 1 Cu → 1 Cu(NO₃)₂ + 2 Ag

1 AgNO₃ + 2 Cu → 2 Cu(NO₃)₂ + 1 Ag

3 AgNO₃ + 2 Cu → 3 Cu(NO₃)₂ + 2 Ag

Multiple Choice

_SO₂ + _Li₂Se →_SSe₂ + _Li₂O

1 SO₂ + 2 Li₂Se → 1 SSe₂ + 2 Li₂O

1 SO₂ + 1 Li₂Se → 2 SSe₂ + 2 Li₂O

2 SO₂ + 2 Li₂Se → 2 SSe₂ + 2 Li₂O

2 SO₂ + 2 Li₂Se → 1 SSe₂ + 1 Li₂O

Multiple Choice

_K + _Cl₂ →_KCl

2 K + 16 Cl₂ → 8 KCl

2 K + 1 Cl₂ → 2 KCl

3 K + 4 Cl₂ → 3 KCl

1 K + 1 Cl₂ →1 KCl

Multiple Choice

How many total atoms are represented? 4Al₂O₃

Multiple Choice

The large number in front of a chemical formula or compound is the ___________.

coefficient

product

physical

chemical

Multiple Choice

When balancing equations what does
-->
mean?

subscript

equals

it is just an arrow

yield

Multiple Choice

What is a substance called if it speeds up a chemical reaction?

reusable

catalyst

specific

fragile

Multiple Choice

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

Enzymes increase the energy of the reactants.

Enzymes decrease the energy level of the products.

Enzyme decrease the activation energy of the reaction.

Enzymes reverse the direction of the reaction.

Multiple Choice

In the diagram, what is letter A?

product

substrate

enzyme-substrate complex

active site

Multiple Choice

Enzymes are...

nucleic acids

proteins

lipids

carbohydrates

Multiple Choice

What is the function of an enzyme?

enzymes break themselves into small pieces

enzymes slow down chemical reactions

enzymes speed up chemical reactions

enzymes combine products to form reactants

Multiple Choice

Enzymes speed up reaction rates by changing...

Activation Energy

Hydrogen Bonds

Kinetic Energy

Multiple Choice

Letter D...

active site

enzyme

substrate

products

Multiple Choice

Letter B...

active site

enzyme

substrate

products

Multiple Choice

Letter C...

active site

enzymes

substrate

products

Multiple Choice

Letter E...

active site

enzyme

substrate

products

Multiple Choice

With what 3 letters do enzymes typically end?

-ose

-ase

-ese

-tic

Multiple Choice

Any substance that is acted upon by an enzyme is called a(n)?

Coenzyme

Substrate

Vitamin

Polypeptide

Multiple Choice

What happens when enzymes are heated to a high temperature?

The enzymes die.

The shapes of the enzyme are altered.

The enzymes' amino acid sequence changes.

The enzymes remain the same

Multiple Choice

What is the activation energy?

The energy of the products

The energy of the reactants

The minimum energy needed by the reactants to form the products.

The energy lost in the reaction

Multiple Choice

Which factors increase the rate of a reaction.

increasing temperature

increasing concentration

increasing surface area

all of these

Multiple Choice

What kind of reaction is this?

Endothermic

Exothermic

Cannot be determined

Multiple Choice

What term is given to a reaction which transfers heat energy to the surroundings?

Endothermic

Reversible

Exothermic

Exotermic

Multiple Choice

What letter represents the energy of the products?

Ch. 6 L. 2 Chemical Reactions

By D Olg

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