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
Vadim26 [7]
2 years ago
10

What is chemical reaction?​

Chemistry
2 answers:
Anon25 [30]2 years ago
5 0
A chemical reaction is a process where one or more substances or reactants are converted to one or more different substances or products. a chemical reaction rearranges the constituent atoms of the reactants to create different products
Aliun [14]2 years ago
3 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

You might be interested in
What is the mass of 2.5 mol of ca, which has a molar mass of g/mol
swat32
Atomic mass Ca = 40 a.m.u

1 mole Ca ----------- 40 g
2.5 mols Ca -------- ( mass Ca )

Mass Ca = 2.5 x 40 / 1

Mass Ca = 100 / 1

= 100 g of Ca

hope this helps!
3 0
3 years ago
How does the modern periodic table arrange elements?
Norma-Jean [14]
<span>The </span>elements are arranged<span> in order of increasing atomic number. Vertical columns(called groups) contain </span>elements with similar properties. Horizontal rows called periods elements with<span> the same number of atomic orbitals(That's why Hydrogen and Helium are separated from the rest of the table).

Hope this helps:)</span>
7 0
3 years ago
Read 2 more answers
Which object forms when a supergiant explodes
klasskru [66]

black hole

hope it helps

edit: neutron star

3 0
3 years ago
Read 2 more answers
Lana balanced an equation so that the result was 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr. Which most likely represents the starting e
seropon [69]

Answer:

C2H3Br + O2 → CO2 + H2O + HBr

Explanation:

The term balancing of chemical reaction equation has a unique meaning in chemistry. What it actually means is to ensure that the number of atoms of each element on the left hand side of reaction equation becomes equal to the number of atoms of the same element on the right hand side of the reaction equation.

When we look at the equation; C2H3Br + O2 → CO2 + H2O + HBr, the number of atoms of each element on the left and right hand sides of the given equation are not the same hence the equation is unbalanced.

If we look at the equation; 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr, the number of atoms of each element on both sides of the reaction equation are now equal, thus the later equation is the balanced version of the former.

6 0
3 years ago
Explain how mass and energy are conserved when water evaporates.
weeeeeb [17]
<span>The water molecules that are evaporationg absorb heat energy from the surrounding environment, which causes the evaporation. If 5 grams of water evaporate, then there will be 5 grams of water vapor in the air.

<span>

</span></span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • Write a nuclear equation to describe the neutron induced fission of Pu-239 to form Kr-89 and Ce-149 (this fission is induced by
    7·1 answer
  • A reaction generates hydrogen gas (H) as a product. The re-
    7·1 answer
  • How would you calculate the difference in enthalpy?
    7·1 answer
  • What is the overall reaction order for the following rate law: <br> Rate = k[A][B][C]²
    12·2 answers
  • The molar masses of three gases, A, B, and C, are 4 grams, 16 grams, and 32 grams respectively. Which sentence represents the ef
    9·2 answers
  • A sample of liquid ammonia has a density of 0.7 g/mL. Find the mass of a 20 mL
    12·1 answer
  • Question 10 of 10
    11·1 answer
  • What is the mass of 8.23 x 10^23 atoms of Ag
    14·1 answer
  • The ion Te2- has how many protons
    13·1 answer
  • Which of the following happens when an ionic bond is formed? (1 point)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!