When calcium metal is placed in water, a single-displacement reaction occurs. Write abalanced equation to describe this reaction.6. A piece of magnesium metal is placed in a solution of hydrochloric acid, resulting inthe formation of hydrogen gas and a solution of magnesium chloride. The class of thisreaction is:5.7.The reaction between potassium chlorate and red phosphorustakes place when you strike a match on a matchbox. If you wereto react 52.9 g of potassium chlorate (KCIO;) with excess redphosphorus, what mass of tetraphosphorus decaoxide (P,Om)would be produced?KC10:(s) + P4(s)+ P,O10(5) + KCI(s) (unbalanced)--

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5. When calcium metal is placed in water, a single-displacement reaction occurs. Write a balanced equation to describe this reaction.

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter10: The Mole

Section: Chapter Questions

Problem 211A

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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

When calcium metal is placed in water, a single-displacement reaction occurs. Write a
balanced equation to describe this reaction.
6. A piece of magnesium metal is placed in a solution of hydrochloric acid, resulting in
the formation of hydrogen gas and a solution of magnesium chloride. The class of this
reaction is:
5.
7.
The reaction between potassium chlorate and red phosphorus
takes place when you strike a match on a matchbox. If you were
to react 52.9 g of potassium chlorate (KCIO;) with excess red
phosphorus, what mass of tetraphosphorus decaoxide (P,Om)
would be produced?
KC10:(s) + P4(s)
+ P,O10(5) + KCI(s) (unbalanced)
--

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