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
adell [148]
2 years ago
7

Consider the reaction; Mg + O2 → MgO Calculate the mass of magnesium oxide possible if 2.5 g Mg reacts with 5.0 g O2?

Chemistry
1 answer:
MAXImum [283]2 years ago
7 0

Answer:

4.15g

Explanation:

Balance the reaction:

2Mg + O2 = 2MgO

Find limiting reactant from the two, by dividing miles with coefficient

2.5/24.3 = 0.103 moles/2 = 0.0515

5/16 = 0.31 moles/2 = 0.156

0.0515 is small than 0.156, so limiting reactant is Mg

Compare the ratio of Mg with MgO

Ratio is 2:2

So same moles = 0.103 moles

Mass = moles x molar mass of MgO

Mass = 0.103 x 40.3

= 4.15g

*please give brainlest*

You might be interested in
What is a solution in chemistry
Hatshy [7]
Solutions are a type of mixture.

A solution is a homogeneous mixture of particles so small that they cannot be seen and cannot be filtered out.

Definition: Homogeneous mixture looks the same.

I grabbed these from my science notes, hope this helps.
4 0
3 years ago
Hello sunrays~<br>help me with these questions ​
andre [41]

Explanation:

During the formation of BeCl2, the beryllium atom bonds with two chlorine atoms via single covalent bonds. The number of electron pairs around the central atom will be two. No lone pair is found in the molecule. If we analyse this information then we can conclude that BeCl2 has sp hybridization.

the cathode

4 0
2 years ago
Read 2 more answers
Write a chemical equation for NH4+(aq) showing how it is an acid or a base according to the Arrhenius definition. Express your a
Galina-37 [17]

Answer:

NH4+(aq)  → NH3(aq) + H+(aq)

Explanation:

Following arrhenius, an acid can be defined as:

An Arrhenius acid is a substance that, when added to water, increases the concentration of H+ ions in water.

NH4+(aq)  → NH3(aq) + H+(aq)

The ammonium ion acts as a weak acid in aqueous solution, dissociating into ammonia and a hydrogen ion.

An Arrhenius base is a substance that, when added to water, increases the concentration of OH- ions in water.

NH4+(aq) will not dissciate in OH- ions. So it's not a base, but an acid.

8 0
3 years ago
Please help. I’m stuck
barxatty [35]
A cartilage doesn’t produce blood cells
4 0
3 years ago
The number of electrons in a neutral atom is equal to the number of protons? True or false
NNADVOKAT [17]

Answer:

true

Explanation:

in order for the atom to be neutral the number of protons and electrons have to be the same.

3 0
2 years ago
Other questions:
  • You have 535 g of Zinc Chloride, ZnCl2. How many moles is this?
    9·2 answers
  • What is the limiting reactant if 8 g of Ba reacts with 2.8 g of Al2(SO4)3?
    10·1 answer
  • The water table is the
    7·1 answer
  • The biopsychosocial perspective, compared with the perspectives of Freud, Jung, and Rogers, __________.
    6·1 answer
  • - The subatomic particle possessing the largest
    7·1 answer
  • In a particular type of cat, coat color follows the dominant/recessive pattern of inheritance. The allele for a brown coat (B) i
    5·1 answer
  • 3. Use the balanced chemical equation from the last question to solve this situation: You combine 0.5 grams of Na2CO3 with exces
    8·1 answer
  • it was believed that earth was a stationary object at the center of the universe all other objects in space without to go around
    12·1 answer
  • The _________ force between the sun and the Earth keeps the Earth in its orbit. The period of ______ is the time it takes for Ea
    15·1 answer
  • The surfaces of leaves contain guard cells that open and close the stomata.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!