Purchase Solution

Reaction equations and mass

Not what you're looking for?

Ask Custom Question

Please give step by step solutions and answers.

1) Write the balanced molecular equation for the reaction of calcium with molecular oxygen to form calcium oxide.

2) You start out with an empty crucible weighing 19.3350g. After adding some calcium to the crucible, the mass is now 22.1156g. After heating the calcium and completely converting it to the oxide, the mass of the crucible is now 25.7701g. Find the mass of the calcium and oxygen in the oxide.

Purchase this Solution

Solution Summary

This solution is provided in 307 words in an attached .doc file. How to balance a molecular equation is given as well as how to calculate mass in a reaction.

Solution Preview

See the attachment.

Please give step by step solutions and answers.

1) Write the balanced molecular equation for the reaction of calcium with molecular oxygen to form calcium oxide.

The molecular equation for the reaction between Ca and O2 is as follows:

The product is Calcium oxide. Now this equation needs to be balanced. Thus, if we place a 2 in front of the CaO, that would balance out the oxygen ...

Purchase this Solution


Free BrainMass Quizzes
Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.