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
Annette [7]
3 years ago
14

What mass of oxygen is required to produce 8.0g of magnesium oxide from 4.8g if magnesium

Chemistry
2 answers:
Bingel [31]3 years ago
7 0
3.2
hope this is super helpful but always remember to check your notes

sleet_krkn [62]3 years ago
3 0

Answer:-

3.2 grams

Explanation:-

The chemical formula for Magnesium Oxide is MgO.

The balanced chemical equation for this reaction is

2Mg + O2 --> 2MgO

Atomic weight of Mg = 24 grams

Molecular weight of oxygen gas O2 = 16 x 2 = 32 grams.

Molecular weight of MgO = 24 x 1 + 16 x 1 = 40 grams

From the balanced chemical equation we see

To produce 2 MgO we require 1 O2.

∴ To produce 2 x 40 grams of MgO we require 32 grams of Oxygen.

To produce 8 grams of MgO we require 32 x 8 / ( 2 x 40) grams of oxygen

= 3.2 grams of oxygen

You might be interested in
The strength of an acid is affected by the polarity of the bond connected to the acidic hydrogen. The more highly polarized this
alexgriva [62]

Answer:

Explanation:

Oxyacids are acid containing oxygen; they are also known as acid-alcohol or acid-phenol. As said earlier, the strength of these acids increases with increases in the polarity of these compounds. So, what makes the polarity is as a result of the electronegative substituents attached to it. Halogen family possesses the highest electronegativity in the periodic table, and electronegativity decreases down the group.

The ranking of the oxyacids in order of decreasing acid strength from strongest to weakest acid is:

HClO3 > . HClO2 > HClO > HBrO

5 0
3 years ago
Why in anaerobic conditions is nadh oxidized by lactate dehydrogenase.
stiv31 [10]

Answer:

It is in the oxidation of NADH to NAD + that lactate dehydrogenase (LDH) plays an important role. LDH catalyzes the following reaction The lactate then diffuses out of the cell and the NAD + is used to continue glycolysis.It is in this manner that the cell continues to produce energy under anerobic conditions.

Explanation:

4 0
3 years ago
The movement of electrons is what type of energy? A. Charge energy B. Kinetic energy C. Magnetic energy D. Electrical energy
m_a_m_a [10]

Answer:

The movement of electrons is kinetic energy, capable of producing electrical energy (option B).

Explanation:

An electron is a mobile subatomic particle, located outside the atom and forming elliptical orbits, unlike protons and neutrons. In addition, each electron has a negative charge.

<u>The energy on which the movement of the electrons depends is kinetic energy, which promotes this movement</u>. The interaction between the negative charges of the electrons and the positive charge of the protons produces electrical energy.

<em>The other options are not correct because the charge energy, electric energy and magnetic energy are consequences of the activity of the subatomic particles of the atom.</em>

5 0
3 years ago
Read 2 more answers
Any help welcome on this, chem balancing equations btw !
Montano1993 [528]

Answer:

A. 1, 1, 1, 1

B.1,1,1

C. 2, 1, 2, 1

D. 2, 1, 1, 1

E.1,2,1,1

F.1, 1, 1, 2

G. 1, 6, 3, 4

H. 2, 3, 2, 3

7 0
3 years ago
What’s Lewis structure?
Helen [10]

Answer: Its C: Trigonal Planar

Hope it helps :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • And is the bending of rock layers due to stress
    11·2 answers
  • If the ph of a solution is 6.2 what would the poh be
    15·2 answers
  • Why is it important that acids and bases have different properties?
    6·1 answer
  • A certain reaction is exothermic in the forward direction and has fewer molecules of gas on the product side. Which set of actio
    8·1 answer
  • Murein lipoprotein is critical for maintaining the integrity of the Gram-negative cell envelope and has potent immunostimulatory
    6·2 answers
  • Which statements are true about reversible reactions?
    15·2 answers
  • -QUESTION 6-PART 2-
    9·2 answers
  • Can you quess my Hogwarts house? Please explain why you think that and I will give brainliest
    13·1 answer
  • PLEASE PLEASE HELP
    6·1 answer
  • A car travels 200 miles in 4 hours calculate the cars speed
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!