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
Svetach [21]
2 years ago
15

What is a chemical reactionthnx a lot​hlo ◇3◇

Chemistry
2 answers:
Helga [31]2 years ago
4 0

Answer:

<em>A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in</em> <u><em>physical form or a nuclear reaction.</em></u>

Explanation:

A process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in <u><em>physical form or a nuclear reaction.</em></u>

Marina86 [1]2 years ago
3 0

Answer:

<em>A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. ... If a physical change occurs, the physical properties of a substance will change, but its chemical identity will remain the same.</em>

Explanation:

<em>I</em><em> </em><em>hope</em><em> this</em><em> helps</em><em>!</em>

You might be interested in
When an animal eats corn or peanuts, will it also eat the seeds?
nasty-shy [4]

Answer:yes

Explanation:it doesnt know

3 0
3 years ago
How do I answer and do this
Alecsey [184]

a) When the reaction takes place a yellow precipitate will be formed.

b) The law of conservation of mass is true.

<u>Explanation:</u>

a) When a lead nitrate solution is mixed with a potassium chromate solution, a yellow precipitate containing lead forms according to the equation:

Pb(NO_3)_2 (aq) + K_2CrO_4 (aq) → 2 KNO_3 (aq) + PbCrO_4(s).

b) Law of conservation of mass for the given reaction is true.

From the given table we know the mass of reactants and its products.

Law of conservation of mass is a principle when a reaction takes place in a closed system, the mass of the products and reactants in the system doesn't change.

⇒The sum of the mass of the reactants = The sum of the mass of the products.

The sum of the reactants = 128.71+128.97.

                                          = 257.68 g.

The sum of the products = 154.10+103.58.

                                          = 257.68 g.

Thus law of conservation of mass is true for the above reaction.

3 0
3 years ago
What rule/principle states that electrons in the same sublevel (p, d, or f) are placed in individual orbitals, before they are p
Radda [10]

Answer:

Hunds Rule

Explanation:

3 0
3 years ago
Read 2 more answers
so how many moles of Fe are in 3.10 mole of iron oxide FeO still waiting for answer please, my grandchild needs help that I can'
alisha [4.7K]
The answer is 3.10 because it's still the same amount moles of iron.
7 0
3 years ago
Answer pls pls plsss
ss7ja [257]
C.
Mark me Brainly!
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is variable????​
    7·2 answers
  • What is the term for the amount of energy that is needed for a chemical reaction to occur?
    10·1 answer
  • The atomic mass of an element is the ____. ) total number of subatomic particles in its nucleus
    14·1 answer
  • A reaction mechanism is defined as the sequence of reaction steps that define the pathway from reactants to products. Each step
    13·1 answer
  • Consider the reaction below. If you start with 4.00 moles of C3H8 (propane) and 4.00 moles of O2 , how many moles of propane wou
    6·1 answer
  • A plate of an alloy steel has a plane-strain fracture toughness of 50 MPa-m1/2. If it is known that the largest surface crack is
    15·1 answer
  • A 1.0 kg ball is thrown into the air and initial velocity of 30 mi./s how high into the air did the ball travel
    8·1 answer
  • Calculate the temperature, in K, of 2.20 moles of gas occupying 4.10 L at 2.82 atm.
    14·1 answer
  • What happens when the two atoms are fairly close?
    12·1 answer
  • Why is the nitrogen important to humans
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!