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
IRISSAK [1]
3 years ago
14

A 15.33 g sample of magnesium oxide is found to contain 12.67 g of magnesium. What is the percent (by mass) composition of

Chemistry
2 answers:
ludmilkaskok [199]3 years ago
5 0

Answer:

12.67g of Mg / 15.33g of MgO * 100% = 82.6% of Mg

Explanation:

GrogVix [38]3 years ago
4 0

Answer:

Explanation:

I can help

You might be interested in
2. What pressure is required to compress 196.0 L of air at 1.00 atmosphere into a cylinder
damaskus [11]

Answer:

<h2>7.54 atm </h2>

Explanation:

The required pressure can be found by using the formula for Boyle's law which is

P_2 =  \frac{P_1V_1}{V_2}  \\

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

From the question we have

P_2 =  \frac{1 \times 196}{26}  =  \frac{196}{26}   \\ = 7.538461...

We have the final answer as

<h3>7.54 atm </h3>

Hope this helps you

3 0
2 years ago
Use the following chemical equation to answer the question. 4K(s) + O2(g) → 2 K2O(s). If a staff member at a laboratory has 12.0
Allushta [10]

Answer:14.5 grams of K2O

Explanation:

4 0
3 years ago
How did newton use creativity and logic in his approach to investigating light
fiasKO [112]
He used prisms to demonstrate how white light is in fact made
3 0
3 years ago
Read 2 more answers
Which of the following is not a characteristic of a solution?What is the concentration of a solution?
vladimir2022 [97]

Answer: B. it will scatter a beam of light

Explanation: hope it is helpful........

3 0
3 years ago
How are trials used in an experiment?
DENIUS [597]

Answer:Trials are repetitions of the same procedure. These are done for a couple of reasons: To minimize the impacts of errors done in any one trial by averaging multiple trials together. To minimize random effects and the effects of uncontrolled variables by averaging multiple trials together.

Explanation:

7 0
3 years ago
Other questions:
  • Gravity and magnetism are ________ forces.
    14·1 answer
  • PLEASE I REALLY NEED ANSWER REAL QUICK
    9·1 answer
  • Jesse travels 3.0 meters east and then turns and travels 4.0 meters north. What distance did Jesse travel? 1 m 5 m, northeast 7
    11·2 answers
  • How many grams of Br are in 335g of CaBr2
    8·1 answer
  • Reflecting and refracting telescopes are used to gather radiation from space. Which of these statements best explains why a refr
    10·1 answer
  • True or false. elements in the same period have the same number of valence electrons
    5·1 answer
  • How does an object in motion stay in motion unless acted upon by an unbalanced force
    10·1 answer
  • 8. How much heat is released when 85.0 g of steam condense to liquid water?
    5·1 answer
  • In the following list, only is not an example of a chemical reaction
    9·1 answer
  • What is the first stroke of a 4 stroke cycle?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!