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
lilavasa [31]
3 years ago
12

How many grams of magnesium oxide forms when 8.0g of magnesium are burned?

Chemistry
1 answer:
AfilCa [17]3 years ago
7 0
Magnesium burns with oxygen to give magnesium oxide based on the following reaction:
2M<span>g</span>+<span>O<span>2 </span></span>........> 2Mg<span>O<span>(s)</span></span>+<span>energy
</span>From the periodic table:
molecular mass of magnesium = 24.3 grams
molecular mass of oxygen = 16 grams

From the reaction:
2 x 24.3 = 48.6 grams of magnesium are required to produce 2(24.3+16) = 80.6 grams of magnesium oxide.
We can know the amount of magnesium oxide produced from 8 grams of magnesium by simply doing cross multiplication as follows:
amount of magnesium oxide = (8 x 80.6) / 48.6 = 13.267 grams

You might be interested in
How does an electron emit light?
Semenov [28]

Answer:

by moving between defined energy levels

6 0
3 years ago
You need to make 10 mL of 2 mg/ml solution of protein and you have 25 mg/mL solution. How much protein solution and water do you
meriva

Answer:

0.8 mL of protein solution, 9.2 mL of water

Explanation:

The dilution equation can be used to relate the concentration C₁ and volume V₁ of the stock/undiluted solution to the concentration C₂ and volume V₂ of the diluted solution:

C₁V₁ = C₂V₂

We would like to calculate the value for V₁, the volume of the inital solution that we need to dilute to make the required solution.

V₁ = (C₂V₂) / C₁ = (2mg/mL x 10mL) / (25 mg/mL) = 0.8 mL

Thus, a volume of 0.8 mL of protein solution should be diluted with enough water to bring the total volume to 10 mL. The amount of water needed is:

(10 mL - 0.8 mL) = 9.2 mL

6 0
3 years ago
What materials are going to use to measure for your data?​
BaLLatris [955]

Answer:

a small unit of measurement used for measuring data is bit.

4 0
3 years ago
An Expert, please answer this question!
Rudiy27

Answer:

C) The student and desk have to be in contact to apply the force.

Explanation:

I am pretty sure :)

3 0
2 years ago
Read 2 more answers
Write a balanced chemical equation for the standard formation reaction of solid sodium hydrogen carbonate nahco3 .
NNADVOKAT [17]
There are a number of methods of which we can form sodium bicarbonate. This compound is commonly known as baking soda. It can be prepared from the reaction of sodium hydroxide and carbonic acid. Carbonic acid in water dissociates into hydrogen ions and the bicarbonate ion while sodium hydroxide would ionize into sodium ions and hydroxide ions. With this, these ions would react and form the sodium bicarbonate salt and water. The chemical reaction would be expressed as follows:

NaOH + H2CO3 = H2O + NaHCO3

Sodium bicarbonate is used in cooking, as a toothpaste and as a cleaning substance.  Also, it is used in medical applications like for the preparation of the dialysate solution.
5 0
3 years ago
Other questions:
  • When 1.14 g of octane (molar mass = 114 g/mol) reacts with excess oxygen in a constant volume calorimeter, the temperature of th
    11·1 answer
  • If the quantity of reactants used in a chemical reaction increase, then the quantity of the products produced will also be incre
    8·1 answer
  • Which equation represents a transuranium​
    7·1 answer
  • PLEASE HELP!!!<br><br><br> Dhdjdhdjwjwnwisidjdnswnsjsjsksk
    14·1 answer
  • Why are atoms of lithium, sodium, and potassium almost neverfound alone in nature
    12·2 answers
  • Question 1 of 6
    14·1 answer
  • When do you identify your variables?
    11·2 answers
  • How Non-Polar Molecule disolves in Non-Polar Molecule?
    8·1 answer
  • What type of chemical bond holds NaCI, an ionic crystal, together?
    6·2 answers
  • How many grams of CaCI2 (molar mass = 111 g/mol) are needed to prepare 100.mL of 0.100 M CI-(aq) ions?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!