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
allochka39001 [22]
2 years ago
8

What is chemical reaction?​

Chemistry
1 answer:
Natali5045456 [20]2 years ago
4 0

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Or

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

You might be interested in
A chemist determined by measurements that 0.050 moles of aluminum participated in a chemical reaction. Calculate the mass of alu
Law Incorporation [45]

Answer:

13.5 g

Explanation:

This question is solved easily if we remember that the number of moles is obtained by dividing the mass into the atomic weight or molar mass depending if we are referring to elements or molecules.

Therefore, the mass of aluminum in the reaction will the 0.050 mol Al times the atomic weight of aluminum.

number of moles = n = mass of Al / Atomic Weight Al

⇒ mass Al = n x Atomic Weight Al = 0.050 mol x 27 g mol⁻¹

                                                         = 13.5 g

We have three significant figures in 0.050 and therefore we should have three significant figures in our answer.

           

8 0
3 years ago
Why are gas bubbles not always a sign of a chemical change?
Mekhanik [1.2K]

Answer: its a reaction

Explanation:

like coke its a reaction between gas and oxygen

3 0
3 years ago
The threat of another hurricane is a problem for New York City. What have people
Masteriza [31]
The only logical answer is A
3 0
3 years ago
You are practicing classification by sorting pictures into groups based on the characteristics of the kingdoms. While you are so
posledela

Answer: D

Explanation: fungi kingdom is Hetrotropiv and is unicellular

7 0
3 years ago
What are the limitations of the van der Waals equation.​
jeka57 [31]
Limitations of Van der waal's equation. (i) The value of 'b' is not constant but varies with pressure and temperature. (ii) The value of is not equal to 3b, but actually it is equal to, in some case; and in other cases 2b. (iii) The value of is not equal to but it is usually more than 3 for most of the gases.
8 0
2 years ago
Other questions:
  • How many molecules are in 67.0 grams of potassium chloride KCl
    13·1 answer
  • How water deposits soil sediment and rock
    15·1 answer
  • Write and balance the equation for the complete combustion of acetylene, C2H2. You do not need to include any phase symbols or e
    7·2 answers
  • In a nuclear reaction, the energy released is equal to 8.1 x 1016 joules. Calculate the mass lost in this reaction. (1 J = 1 kg
    15·2 answers
  • A bacterial colony is grown in a laboratory under controlled conditions. Based on the data, we would expect the bacterial popula
    15·2 answers
  • Which of the following salts will be less soluble in 0.10 M NaCl than it is in pure water?
    10·1 answer
  • Helllllp meh pleaseeeeeee
    15·2 answers
  • 15 pts! Explain how the absorption of energy (heating) affects the speed of the particles in a substance.
    13·1 answer
  • Which model of the atom is thought to be true?
    12·1 answer
  • Explain why nitrogen diffuses faster than clorine
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!