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
ArbitrLikvidat [17]
3 years ago
14

What does not represent a compound

Chemistry
1 answer:
Ainat [17]3 years ago
5 0

Answer:

<h2>Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.</h2>

Explanation:

You might be interested in
Explain why Nitrogen -17 is unstable
Yuri [45]
Has only 7 electrons so it want to bond with other elements so its very reactive and unstable. Hope this helps
4 0
1 year ago
Why are alloys generally used to make everyday objects
dezoksy [38]
Chem bonds by exchanged charges create new characteristics as a result
4 0
3 years ago
13. What does 2n^2 stand for?
Sever21 [200]

Answer:

2n² is a formula that determines that the maximum number of electrons should be accommodated in a particular shell.

Explanation:

4 0
2 years ago
Consider the following data showing the initial rate of a reaction (A→products) at several different concentrations of A.
OlgaM077 [116]

Answer:

(1) order = 2

(2) R = K [A]²

Explanation:

Given the reaction:

A--------->Product

The rate constant relation for the reaction is given as:

R(i) = K [A]............(*)

Where R(I) is rate constant at different concentration of A.

Taking the rate constant as R1, R2 and R3 for the different concentrations respectively. Then the following equations results

0.011 = K [0.15] ⁿ.........(1)

0.044 = K [0.30]ⁿ .......(2)

0.177 = K [0.60]ⁿ .........(3)

Dividing (2) by (1) and (3) by (1)

Gives:

0.044/0.011 = [0.3/0.15]ⁿ

4 = 2ⁿ; 2² = 2ⁿ; n = 2

Similarly

0.177/0.011 = [0.60/0.15]ⁿ

16.09 = 4ⁿ

16.09 = 16 (approximately)

4² = 4ⁿ ; n = 2

Hence the order of the reaction is 2.

The rate law is R = K [A]²

4 0
3 years ago
Determine the percentage composition (by mass) of oxygen in NH4NO3.
Brrunno [24]

Answer:

60%

Explanation:

M(NH4NO3) = 2*14 +4*1 +3*16 = 80 g/mol

M(3O) = 3*16 = 48 g/mol

(48/80) *100 % =60% oxygen by mass.

6 0
3 years ago
Other questions:
  • What is the chemical formula for 2-propanol?
    10·1 answer
  • To begin the experiment, 1.11g of methane CH4 is burned in a bomb calorimeter containing 1000 grams of water. The initial temper
    5·1 answer
  • Why does perchloric acid cause macromolecules to precipitate?
    6·1 answer
  • a cork is able to float on water because it is A: a crystalline sold B: equal density to water C: small in size D:less dense tha
    11·2 answers
  • PLEASE ANSWER !!!
    15·2 answers
  • Which element is oxidized in the following reaction: 2FeCl₂ + Cl₂→2FeCl₃ if Fe goes from + 2 to +3 and Cl goes from 0 to −2?
    5·1 answer
  • Below you will see both the elements for comparison and a star's spectrum. Your job is to identify all the elements you can dete
    6·1 answer
  • What is the mass of 3.5 mol of MgBr2?
    10·1 answer
  • Please help with this question
    11·2 answers
  • A 25.00-mL sample of 6.00 M HCl solution is diluted to a new volume of 85.00 mL. What is the concentration of the dilute solutio
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!