I Review I Constants I Periodic Table When a chemical reaction occurs, atoms rearrange to form new compounds, but no new atoms are created nor are any destroyed. This concept is called conservation of mass. Mass conservation can be seen in a balanced chemical equation, where the numbers of each kind of atom are the same on both sides of the reaction arrow. Part A The figure (Figure 1) shows the reaction of element A (lavender spheres) with element B (tan spheres). Write the balanced chemical equation for this reaction in terms of A andB. Express your answer as a chemical equation. • View Available Hint(s) ΑΣφ A chemical reaction does not occur for this question. Submit Balancing equations with polyatomic ions Figure < 1 of 1 When balancing chemical equations with polyatomic ions, it may help to balance the ion as a whole. For example, the ion PO,3- can be treated as a unit and balanced in both the reactants and the product, or you can break it down and balance each atom separately . Part B Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction: ? H3PO4 +? Mg(OH)2 → ? Mg3 (PO4)2 + ? H2O Balance the equation, then enter the coefficients, in order, in the answer box. Enter four integers separated by commas. • View Available Hint(s)

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Part A and B
十
P
Course..
<chpt 3 reactions and moles
Chemical Equations
3 of 11
I Review I Constants I Periodic Table
When a chemical reaction occurs, atoms rearrange to
Part A
form new compounds, but no new atoms are created nor
are any destroyed. This concept is called conservation of
mass. Mass conservation can be seen in a balanced
chemical equation, where the numbers of each kind of
atom are the same on both sides of the reaction arrow.
The figure (Figure 1) shows the reaction of element A (lavender spheres) with element B (tan spheres). Write the
balanced chemical equation for this reaction in terms of A and B.
Express your answer as a chemical equation.
• View Available Hint(s)
ΑΣφ
?
A chemical reaction does not occur for this question.
Submit
Balancing equations with polyatomic ions
Figure
< 1 of 1
When balancing chemical equations with polyatomic ions, it may help to balance the ion as a whole. For example, the
jon PO.3- can be treated as a unit and balanced in both the reactants and the product, or you can break it down and
balance each atom separately
• Part B
Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following
reaction:
? H3PO4 + ? Mg(OH)2 → ? Mg3 (PO4)2 + ? H2O
Balance the equation, then enter the coefficients, in order, in the answer box.
A.
Enter four integers separated by commas.
B
• View Available Hint(s)
Transcribed Image Text:十 P Course.. <chpt 3 reactions and moles Chemical Equations 3 of 11 I Review I Constants I Periodic Table When a chemical reaction occurs, atoms rearrange to Part A form new compounds, but no new atoms are created nor are any destroyed. This concept is called conservation of mass. Mass conservation can be seen in a balanced chemical equation, where the numbers of each kind of atom are the same on both sides of the reaction arrow. The figure (Figure 1) shows the reaction of element A (lavender spheres) with element B (tan spheres). Write the balanced chemical equation for this reaction in terms of A and B. Express your answer as a chemical equation. • View Available Hint(s) ΑΣφ ? A chemical reaction does not occur for this question. Submit Balancing equations with polyatomic ions Figure < 1 of 1 When balancing chemical equations with polyatomic ions, it may help to balance the ion as a whole. For example, the jon PO.3- can be treated as a unit and balanced in both the reactants and the product, or you can break it down and balance each atom separately • Part B Phosphoric acid reacts with magnesium hydroxide to produce magnesium phosphate and water via the following reaction: ? H3PO4 + ? Mg(OH)2 → ? Mg3 (PO4)2 + ? H2O Balance the equation, then enter the coefficients, in order, in the answer box. A. Enter four integers separated by commas. B • View Available Hint(s)
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