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
charle [14.2K]
2 years ago
15

What is the molar mass of magnesium nitride (Mg3N2) if the molar mass of magnesium is 24.31g and nitrogen is 14.01g?

Chemistry
1 answer:
iren [92.7K]2 years ago
4 0
Mg3N2

Mg - 3 times 24.31 g=  72.93 g

N - 2 times 14.01 g=  +  28.02 g
 Molar Mass=    100.95 g/mol Mg3N2
You might be interested in
Which of the following would not be an isotope of carbon-12? A. Carbon-14 B. Carbon-13 C. Boron-12 D. Carbon-11
Oliga [24]
C because it isn't carbon
6 0
2 years ago
A scientist, Dr. Sigma, states that a chemical taken internally once a day will prevent the common cold. However, no other scien
pshichka [43]

Answer:

not valid

Explanation:

Expert judgment is a useful validation method to verify the reliability of an investigation that is defined as “an informed opinion of people with experience in the subject, who are recognized by others as qualified experts in it, and who can give information, evidence, judgments and assessments ”

After submitting an instrument for comparison to the consultation and expert opinion, it must meet two quality criteria: validity and reliability. The validity of content is often established based on two situations, one that concerns the design of a test and the other, the validation of an instrument subject to translation and standardization procedures to adapt it to different cultural meanings. It is here that the task of the expert becomes a fundamental task to eliminate irrelevant aspects, incorporate those that are essential and / or modify those that require it.

5 0
3 years ago
What is the theoretical yield of a reaction?
mestny [16]
I think it's D, because theoretical yield is like, the yield you'd get if 100% of the reactants formed to make product. Well that's how I think of it, but it has something to do with limiting reagents and stuff. Sorry this isn't a really detailed explanation.
4 0
2 years ago
Locations Cost of land Cost of equipment Cost of mining and reclamation Time taken to mine the area 1 $100,000 $10,000 $5,000 pe
mario62 [17]

Answer:

Location 2 will cost the least to the company to mine.

Explanation:

a) Data and Calculations:

Locations  Cost of land     Cost of       Cost of mining      Time taken to

                                        equipment   and reclamation    mine the area

1                 $100,000      $10,000         $5,000 per day        30 days

2                 $35,000       $6,000          $4,500 per day        45 days

3                 $30,000       $7,500          $3,500 per day       120 days

4                 $40,500       $8,000          $7,000 per day        65 days

Locations  Cost of land     Cost of       Cost of mining                      Total

                                        equipment   and reclamation                    Costs

1                 $100,000      $10,000         $150,000 ($5,000 * 30)  $260,000

2                 $35,000       $6,000         $202,500 ($4,500 * 45)   $243,500

3                 $30,000       $7,500         $420,000 ($3,500 * 120)  $457,500

4                 $40,500       $8,000         $445,000 ($7,000 * 65)   $503,500

7 0
2 years ago
What is found in a plant cell but not in an animal cell
yan [13]
Since plants are able to do Photosynthesis while animals are not, it would be the part of the plant that does it.

so the answer would be Chloroplast.
8 0
3 years ago
Other questions:
  • You give a sample containing .90 moles of a substance
    7·1 answer
  • Is the mass of the reactants always equal to the mass of the products in a chemical reaction?
    8·1 answer
  • Help me please I need help
    12·1 answer
  • Which solution will have the highest ph? the ka of hclo is 3.8 × 10−8.
    15·1 answer
  • Zinc and sulfuric acid solution produce zinc sulfate solution and hydrogen balanced chemical equation
    8·1 answer
  • Please Help Why is laboratory safety important? Describe a scenario illustrating your reason(s).
    15·1 answer
  • The Moon’s appearance changes during its ________ around Earth. These changes are called ____________________.
    10·1 answer
  • HELP PLZ !!!!! !!!!
    10·1 answer
  • What volume of 0.160 m li2s solution is required to completely react with 130 ml of 0.160 m co no3 2?
    6·1 answer
  • The concentration of hydrogen peroxide solution can be determined by
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!