1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
diamong [38]
3 years ago
6

Magnesium unites completely and vigorously with oxygen to form magnesium oxide, which contains 60% magnesium by weight. If 1.00

gram of magnesium is sealed in a glass tube with 1.00 gram of oxygen, what will be present in the tube after the reaction has taken place
Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

After the reaction, there will 0.60 g of magnesium oxide and 0.25 g of oxygen gas present in the tube

Explanation:

Equation of the reaction between magnesium and oxygen is given as follows:

2Mg(s) + O₂(g) ---> 2MgO(s)

From the equation of reaction, 2 moles of magnesium reacts with i mole of oxygen gas to produce 1 mole of magnesium oxide

molar mass of magnesium is 24.0 g; molar mass of oxygen gas = 32.0 g; molar mass of magnesium oxide = 40.0 g

Therefore 24 g of magnesium reacts with 32 g of oxygen gas

I.00 g of magnesium will react with (24.0 / 32.0) * 1.00 g of oxygen = 0.75 g of oxygen gas.

Therefore, magnesium is the limiting reagent. Once it is used up, the reaction will stop and the excess oxygen will be left in the tube together with the product, magnesium oxide.

mass of excess oxygen = 1.00 - 0.75 = 0.25 g

mass of magnesium oxide formed = (24.0 / 40.0 g) * 1 = 0.60 g

You might be interested in
​_____ is a portfolio analysis model developed by the Boston Consulting Group that assesses the potential of successful products
erik [133]

Answer:

. BCG growth-market share matrix

Explanation:

The growth-share matrix is a business portfolio that main aim is to divide the different businesses of a company according to priority. it includes the different criteria on which different businesses can be prioritized. it includes four different quadrants that show its own profitability criteria. the four-quadrant are question marks, stars, pets, cash cows.

7 0
3 years ago
Place the
9966 [12]
Potassium, aluminum, silicon, magnesium neon
3 0
3 years ago
Predict the outcome of this reaction. Balancing doesn't matter. <br><br> Mg + H2O --&gt;
ELEN [110]

Answer:

MgO + H₂

Explanation:

The products of reaction is MgO  and hydrogen gas.

This is a single displacement reaction.

In this reaction, the possibility of the reaction is determined by position of the atoms on the activity series.

 Mg is higher than H on the activity series, so it is more reactive and it then displaces the hydrogen in water;

            Mg + H₂O → MgO + H₂

7 0
2 years ago
Plants are considered
wariber [46]
Because they create their own food, they are considered as producers.
6 0
2 years ago
Which choice best explains how herd behavior helps young musk oxen survive?
laiz [17]

Answer:

A

Explanation:

'herd behavior' helps understand the question for the answer

7 0
3 years ago
Read 2 more answers
Other questions:
  • an empty 250 milliliter beaker has a mass of 60 grams. When 100 milliliters of oil is added to the beaker, the total mass is 140
    5·1 answer
  • This one is actually 30 points chem quesitons
    5·1 answer
  • Balance this half-reaction: Re → ReO2 (acidic solution)
    9·1 answer
  • #1: How many valence electrons are in the outermost shell of all halogens?
    13·1 answer
  • Select all (there's more than one) of the below chemicals that would be insoluble in water.
    9·1 answer
  • What is the thermal energy of an object created by?
    11·1 answer
  • A student is asked to balance an equation by using the half-reaction method. He determines the two half reactions as shown below
    7·1 answer
  • What is a resistor that can stop most
    5·1 answer
  • Water, Water Everywhere
    7·1 answer
  • A student wants to know how the number of geese in a study area affects the number of parts in their songs. She performs an expe
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!