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
Kryger [21]
3 years ago
12

Which of the following is a change in which the identity of the substance

Chemistry
1 answer:
sergey [27]3 years ago
3 0

Answer:

physical

Explanation:

physical is the answer not chemical

<u>I</u> <u>think</u><u> </u><u>so</u>

You might be interested in
Draw the structure for cis-2,3-dibromo-2-hexene.
padilas [110]
First, draw the 2-hexene. Th is is a molecule of six carbons with a double bond in the second carbon:

      CH3 - CH = CH2 - CH2 - CH2 - CH3

Secong, put one Br on the second carbon and one Br on the third carbon:

    CH3 - CBr = CBr - CH2 - CH2 - CH3

Third, cis means that the two Br are placed in opposed positions, this is drawn with one Br up and the other down. So, you need to represent the position of the Br in the space:


      H   Br          H     H      H
       |    |             |       |       |
H - C - C = C -  C  -  C  -  C - H
       |           |      |       |       |
      H          Br   H     H      H

The important fact to realize is that the two Br are in opposed sides of the molecule.
4 0
3 years ago
Read 2 more answers
what is the molarity of a RbOH solution if 60.0 mL of the solution is neutralized by 52.8 mL of a 0.5M HCl solution (Hint: Ma x
Dahasolnce [82]
RbOH is a strong base that dissociates completely and HCl is a strong acid that too dissociates completely. the complete reaction between the acid and base is;
RbOH + HCl ---> RbCl + H₂O
stoichiometry of acid to base is 1:1
At neutralisation point
H⁺ mol = OH⁻ mol
mol = molarity x volume 
if Ma - molarity of acid and Va - volume of acid reacted
Mb - molarity of base and Vb - volume of base reacted 
Ma x Va = Mb x Vb
0.5 M x 52.8 mL = Mb x 60.0 mL 
Mb = 0.44 M 
molarity of base - 0.44 M 

7 0
3 years ago
What determines the average kinetic energy of the particles in a gas?
jolli1 [7]

Answer:

D

The temperature.

Explanation:

7 0
3 years ago
Read 2 more answers
When atoms gain electrons, they can become larger, because the addition of an electron increases electrostatic repulsion.
astra-53 [7]

Answer:True

Explanation: An anion has a larger radius than a neutral atom because it gains valence electrons. There are added electron/electron repulsions in the valence shell that expand the size of the electron cloud, which results in a larger radius for the anion.

hit the crown for me pls :)

Have a great day

6 0
2 years ago
Hydrogen sulfide gas H2S and aqueous iron(II) chloride are formed by the reaction of aqueous hydrochloric acid HCl and solid iro
jasenka [17]

Answer:

The balanced chemical equation for this reaction is:

2HCl (aq) + FeS (s) -----> FeCl2 (aq) + H2S (g)

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Is this right?If not what did I do wrong ?
    5·1 answer
  • Find the ΔG° for the combustion of half a mole of glucose C6H12O6 in kJ
    14·1 answer
  • Multiple answers are allowed.
    14·2 answers
  • A student is investigating the transfer of energy between potential and kinetic. The student observes a roller coaster at four l
    7·2 answers
  • What is the collection of protons and neutrons in the center of an atom called
    8·2 answers
  • An average microwave uses a frequency of 2.54 GHz. How much energy is emitted?
    11·1 answer
  • Potassium hydroxide reacts with hydrochloric acid to form salt and water.
    14·2 answers
  • A block is pulled 0.90 m to the right in 4.5 s. What is the block's average speed to the nearest tenth of m/s?
    8·2 answers
  • When the Kelvin temperature of an enclosed gas doubles, the particles of the gas
    9·1 answer
  • True or False.. Light from an unshaded bulb radiates in all directions?? ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!