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
TiliK225 [7]
2 years ago
8

1 When a chemical reaction occurs A. the substances involved do not mix together and maintain their original properties. B. the

properties of the substances that are produced are identical to the properties of the original substances. C. the substances involved mix together but maintain their original properties. D. the proberties of the substances that are produced are different from the properties of the original substances.
Chemistry
1 answer:
nlexa [21]2 years ago
6 0

Answer:

D

Explanation:

The proberties of the substances that are produced are different from the properties of the original substances.

You might be interested in
If temperature is increased , the number of collision per second
Tomtit [17]

Answer: increases

Explanation:

Increase in the temperature of a reaction system will cause the molecules of the reactants to possess higher kinetic energy which they would use to travel more randomly in the system, colliding more frequently with other excited molecules and with the wall of the containing vessel.

Thus, if temperature is increased, the number of collision per second also increases.

8 0
3 years ago
Which compound is insoluble in water?<br> (1) BaSO4 (3) KClO3<br> (2) CaCrO4 (4) Na2S
pav-90 [236]
 <span>BaSO4 
I hope this helps!</span>
7 0
3 years ago
Read 2 more answers
Can some one plz help
blsea [12.9K]

The reaction uses B) 9.0 g Br₂.

 iron + bromine ⟶ product

2.0 g +     <em>x</em> g     ⟶   11.0 g

According to the <em>Law of Conservation of Mass</em>, the total mass of the reactants must equal the total mass of the products.

∴2.0 + <em>x</em> = 11.0

<em>x</em> = 11.0 – 2.0 = 9.0

The reaction uses 9.0 g Br₂.

5 0
2 years ago
What is first and second element of the periodic table?
stira [4]
The elements on the periodic table are listed in increasing atomic number. 

Hydrogen is the first element, and has an A.N. of 1. Also, its very interesting how it doesn't need 8 valence electrons to be stable. 

The second element is Helium, which has an A.N (atomic number) of two. 
7 0
3 years ago
Read 2 more answers
Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient
romanna [79]

Answer:

Coefficient of H^{+}(aq) is more than 4

Explanation:

Oxidation: Sn^{2+}(aq)\rightarrow Sn^{4+}(aq)

  • Balance charge: Sn^{2+}(aq)-2e^{-}\rightarrow Sn^{4+}(aq)......(1)

Reduction: Cr_{2}O_{7}^{2-}(aq)\rightarrow Cr^{3+}(aq)

  • Balance Cr: Cr_{2}O_{7}^{2-}(aq)\rightarrow 2Cr^{3+}(aq)
  • Balance O and H in acidic medium: Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l)
  • Balance charge: Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)+6e^{-}\rightarrow 2Cr^{3+}(aq)+7H_{2}O(l).......(2)

[3\times Equation-(1)]+Equation(2) gives balanced equation:

3Sn^{2+}(aq)+Cr_{2}O_{7}^{2-}(aq)+14H^{+}(aq)\rightarrow 3Sn^{4+}(aq)+2Cr^{3+}(aq)+7H_{2}O(l)

So coefficient of H^{+}(aq) is more than 4

3 0
3 years ago
Other questions:
  • Write the electronic configuration of calcium oxide ​
    15·1 answer
  • Which describes mendeleevs use of the term eka-aluminum??
    10·2 answers
  • In the following reaction, what is the relationship between the rate at which the nitrous oxide is used up, the rate at which th
    15·1 answer
  • What is the % yield of CO2 if 10g of CO produces 12.8 g CO2? <br> 2CO + O2 → 2CO2
    6·2 answers
  • What are the three states of matter?
    6·1 answer
  • What volume of 8.00 M HCI is needed to make 206 mL of 4.50 M HCI
    15·1 answer
  • An ion has 24 protons and 19 electrons. Write the symbol for this ion.
    9·1 answer
  • How many formula units are there in 7.55 moles potassium chloride?
    9·1 answer
  • +
    8·1 answer
  • Members in the same family have similar chemical properties because they all
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!