Chemistry, 13.09.2019 19:30 andii1101

When solid magnesium burns, it reacts with oxygen in the air to form a powder called magnesium oxide. a chemist performed this reaction in a lab and found that the mass of the magnesium oxide was greater than the mass of the magnesium. what is the reason behind this increase in mass?
a. the increase in the mass of the magnesium oxide was due to oxygen atoms in the air.
b. the increase in the mass of the magnesium oxide happened because oxygen is heavier than magnesium.
c. the increase in the mass of the magnesium oxide happened because magnesium is heavier than oxygen.
d. the increase in the mass of the magnesium oxide was due to magnesium atoms in the air.

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 13:00

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.

Answers: 1

Answer

Chemistry, 22.06.2019 13:30

What are the chemical names of these compounds? ke: mg3n2: reset next

Answers: 1

Answer

Chemistry, 22.06.2019 18:00

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

Answers: 2

Answer

Chemistry, 23.06.2019 09:30

Hey, could someone me answer this? much appreciated!

Answers: 1

Answer

You know the right answer?

When solid magnesium burns, it reacts with oxygen in the air to form a powder called magnesium oxide...

Questions