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
nikdorinn [45]
3 years ago
5

Help plz already know 1&2

Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
3 0
3. A
4. B
5. A
6. E
7. A
8. C
9. A
10. B
Some of these were guesses but they were educated guesses. Best of luck. If some of them are wrong I am sorry.  <span />
You might be interested in
Which layer of soil in the diagram contains clay and other particles of rock but little humus ?
Ahat [919]
Im thinking a horizon 
4 0
3 years ago
Read 2 more answers
12. Draw an energy curve for a chemical reaction that begins at 30 kj and has an activation energy of
Rufina [12.5K]

Answer:

  • <em>Since the activation energy is 50kJ , we need to supply it  50kJ from 30kJ to make it 80kJ .</em>
  • Diagram attached in the file .

8 0
3 years ago
Calculate the molar concentration of the Cl⁻ ions in 0.73 M MgCl2(aq).
Marta_Voda [28]
MgCl2(aq) is an ionic compound which will have the releasing of 2 Cl⁻ ions ions in water for every molecule of MgCl2 that dissolves.
MgCl2(s) --> Mg+(aq) + 2 Cl⁻(aq)
            [Cl⁻] = 0.73 mol MgCl2/1L × 2 mol Cl⁻ / 1 mol MgCl2 = 1.5 M
The answer to this question is [Cl⁻] = 1.5 M
7 0
4 years ago
The atomic masses of any two elements contain the same number of
den301095 [7]

Answer:

They contain of atoms

Explanation:

That's because atomic weights or masses of each atom of each element are proportional to each other, the same number of atoms of each element will give masses that are also proportional to each other. If you start with 20 oxygen atoms, you will need 40 hydrogen atoms to make the water and you will get 20 molecules of water.

8 0
3 years ago
3. compounds in which elements are held together by covalent bonds...keeps their own properties
stich3 [128]
The anserr is c that what i think
3 0
4 years ago
Other questions:
  • Which of the following would represent a single displacement reaction between Potassium Bromide (K^+Br^-) and Iodine (I), which
    12·1 answer
  • One g of U-235 produces approximately how much more energy than 1 g of coal? (a) 3,000 times, (b) 19,000 times, (c) 80,000 times
    9·1 answer
  • Convert 575.1 mmHg to atm
    9·1 answer
  • Which of the following statements about the formation of a solution is true?
    5·1 answer
  • Name the following compound: <br> HC2H3O2
    11·2 answers
  • Which of the following statements holds true for chemical change?
    13·1 answer
  • A block made of a certain material has a thickness of 20 cm and a thermal conductivity of 0.04 m C. At a particular instant in t
    7·1 answer
  • SOMEONE HELP I'LL GIVE BRAINLIEST
    5·1 answer
  • Under what conditions does the Ideal Gas Law not apply and gases are considered real? Check all that apply. High pressure low pr
    7·2 answers
  • What happens to a 8 L volume of gas as you love a pressure of 3 atm to 4 atm? Use the correct gas law to determine the new volum
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!