How To Write Chemical Reactions - Chemistry Test
10 Questions
| Total Attempts: 2144
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs Write the chemical formula for each word equation. Be sure to label the correct state of matter for each element/compound.
Questions and Answers
- 1.Solid sodium combines with solution of magnesium fluoride to form sodium fluoride solution and magnesium metal.
- 2.Magnesium metal is added to hydrochloric acid to form magnesium chloride solution and hydrogen gas.
- 3.Chlorine gas is added to solution of potassium iodide to form potassium chloride solution and iodine liquid.
- 4.Sodium chloride crystals are heated to form sodium powder and chlorine gas.
- 5.Sodium crystals are combined with oxygen gas to form sodium oxide solution
- 6.Sodium crystals are combined with hydrochloric acid to for hydrogen gas and sodium chloride solution.
- 7.Potassium metal is combined with chlorine gas to form potassium chloride solution.
- 8.A solution of copper (II) oxide is combined with solid carbon to form copper metal and carbon dioxide gas.
- 9.Calcium metal is combined with oxygen gas to form solid calcium oxide.
- 10.Nitrogen gas combines with hydrogen gas to form an ammonia solution.
What do you know about chemical reactions? A chemical reaction is a route that leads to the transformation of one group of chemical substances to another. Chemical reactions exemplify changes that only involve electrons'...
Questions: 12 | Attempts: 10460 | Last updated: Apr 6, 2021
-
Sample QuestionWhich one of the following represents a physical change?
An extensive property is a property that depends on the amount of matter in a sample whereas intrusive properties are mostly determined by the physical property of a system. Test how well you understand the difference and...
Questions: 8 | Attempts: 9260 | Last updated: Mar 19, 2019
-
Sample QuestionProperties that do depend on the amount of matter present.
.
Questions: 17 | Attempts: 5481 | Last updated: Sep 11, 2020
-
Sample QuestionPb(NO3)2+ 2 KI ---> PbI2+ 2 KNO3 What constitutes this reaction?
Back to top