Which of the following represents a single replacement reaction?

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

Which example shows a double replacement reaction?

KCl + AgNO₃ → AgCl + KNO₃

Cu + Ag(NO₃)₂ → Ag + Cu(NO₃)₂

A chemical equation is shown. 4FeS + 7O₂ → 2Fe₂O₃ + 4SO₂ Which statement is correct about the chemical equation?

It is unbalanced because the sum of the coefficients of the reactants is greater than the sum of the coefficients of the products.

It is balanced because the mass of the reactants is equal to the mass of the products.

It is unbalanced because the mass of the reactants is greater than the mass of the products.

It is balanced because the sum of the coefficients of the reactants is greater than the sum of the coefficients of the products.

Look at the following chemical equation. 2H₂O₂ → 2H₂O + O₂ Does this equation follow the conservation of mass?

Yes, because each atom that is in the reactants is found in the products.

Yes, because the mass of the reactants is greater than the mass of the products.

No, because the mass of the reactants is greater than the mass of the products.

No, because the coefficient of the reactant is less than the coefficient sum of the products.

Look at the following chemical equation. H₃PO₄ + 5HCl → PCl₅ + H₂O What is true about this chemical equation?

It is balanced because the mass of the reactants is equal to the mass of the products.

It is balanced because the number of reactants is equal to the number of products.

It is unbalanced because the mass of the reactants is greater than the mass of the products.

It is unbalanced because the mass of the reactants is less than the mass of the products.

Which chemical equation follows the law of conservation of matter?

C₅H₁₂ + 7O₂ → 5CO₂ + 6H₂O

2K + Ca(NO₃)₂ → K(NO₃) + Ca

electrostatic interactions between anions and cations.

attraction between water and salts.

the release of protons by negatively charged particles.

the sharing of electrons between two atoms of the same element.

How do electrons move in a metallic bond?

around only atoms with small diameters

tightly around the atom with the most bonds

U4 Balancing and Chemical Reactions

Quiz

•

Science

•

11th Grade

•

Practice Problem

•

Medium

•

NGSS

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

+1

Standards-aligned

Melissa Hunt

Used 5+ times

FREE Resource

39 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The equation shows a chemical reaction. 2 AgNO₃ + CuCl₂ → 2 AgCl + Cu(NO₃)₂ Which type of reaction is represented by this equation?

synthesis reaction

decomposition reaction

single replacement reaction

double replacement reaction

2.

decomposition reaction

ionic reaction

double-displacement reaction

synthesis reaction

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U4 Balancing and Chemical Reactions

39 questions

The equation shows a chemical reaction. 2 AgNO₃ + CuCl₂ → 2 AgCl + Cu(NO₃)₂ Which type of reaction is represented by this equation?

The equation shows a partial chemical reaction. Ba(NO₃)₂ + Na₂CO₃ → ? What is the completed and balanced equation for this reaction?

In which kind of reaction does a single reactant produce two or more simpler substances?

The equation shows a chemical reaction. Zn(g) + CuCl₂(aq) → ZnCl₂(aq) + Cu(g) What kind of reaction is this?

Which kind of reaction is represented by the chemical reaction below? 2KClO₃(s) → 2KCl(s) + 3O₂(g) is a(n)

Which type of reaction takes place when one element reacts with a compound to form a new compound and a different element?

In what kind of reaction do two or more substances combine to form a new compound?

The equation shows a chemical reaction. H₂CO₃ → H₂O + CO₂ Which type of reaction is represented by this equation?

The equation shows a chemical reaction. 2 H₂O₂(l) → 2 H₂O(l) + O₂(g) What kind of reaction is this?

The equation A + X → AX is the greatest equation for which kind of reaction?

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