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
marishachu [46]
3 years ago
8

what occurs in the chemical reaction (A) reactions break bonds and reform the same bonds (B) no chemical bonds are broken (C) re

actants break bonds and form new bonds to make new substance (D) reactants break bonds but do not form new substances
Chemistry
1 answer:
Likurg_2 [28]3 years ago
4 0
The answer is Cc reactants break bonds and form new bonds to make new substances 
You might be interested in
What is the correct listing of renewable and non-renewable resources.
Aloiza [94]

Answer:

i think its mammals

Explanation:

i hope this helps

7 0
3 years ago
What is high specific heat?
Juliette [100K]
Specific heat capacity is the energy needed to raise the temrature of a substance of mass of 1kg by 1kelvin Q= Mc (delta) T delta T = change in temprature M = mass c= specific heat capacity q = energy if you take everything except C to be one Q will get bigger as C gets bigger
5 0
3 years ago
Explain the 4 methods of separating mixtures
jeyben [28]
1) chromatography- separation by inner molecular attractions.

2) distillation- separation by boiling point differences.

3) filtration- separation by particle size

4) crystallization- separation by solubility
8 0
3 years ago
A molecule is known to have a molar absorptivity of 18,650 at a certain wavelength. A spectrometer is tuned to this wavelength a
iren2701 [21]

Answer:

17,932.69 g/mol is the molecular weight of the substance.

Explanation:

Using Beer-Lambert's law :

Formula used :

A=\epsilon \times c\times l

where,

A = absorbance of solution = 1.04

c = concentration of solution =?

l = length of the cell = 1 cm

\epsilon = molar absorptivity of this solution = 18,650 M^{-1} cm^{-1}

Now put all the given values in the above formula, we get the molar absorptivity of this solution.

1.04=18,650 M^{-1} cm^{-1}\times c)\times (1cm)

c = 5.576\times 10^{-5} M

Concentration=\frac{\text{Mass of compound}}{\text{Molecular mass of compound}\times V}

V = Volume of the solution in L

Molecular weight of the substance = x

V = 100 mL = 0.1 L

Mass of the substance = 100 mg = 0.1 g

5.576\times 10^{-5} M=\frac{0.1 g}{x\times 0.1 L}

x = 17,932.69 g/mol

17,932.69 g/mol is the molecular weight of the substance.

6 0
3 years ago
A human zygote has 46 chromosomes. This number of chromosomes represents what in a human cell?
SOVA2 [1]
If the sperm carries a Y chromosome, it will result in a male. During fertilization, gametes from the sperm combine with gametes from the egg to form a zygote. The zygote contains two sets of 23 chromosomes, for the required 46.
3 0
3 years ago
Other questions:
  • How can you make a solution saturated
    15·1 answer
  • Why is melting a physical property of the wax, but flammability is a chemical property?
    6·1 answer
  • Please help! If a forensic chemist discovers evidence through examination which would prove a person guilty of a crime, why then
    13·1 answer
  • Why is the collision theory considered to be well-established and highly reliable?
    9·1 answer
  • A student heats a sample of KClO3, KCl, and MnO2 having a mass of 3.63.49 g. After the reaction is complete, she has collected 3
    13·1 answer
  • Explain why some parts of our planet have very little seasonal change.
    13·1 answer
  • Copper is a solid phase of copper still unknown to science. The only difference between it and ordinary copper is that Copper fo
    7·1 answer
  • When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether this is a physical change or a
    7·1 answer
  • 3.1.4 Quiz: Covalent Bonds
    14·2 answers
  • The location of elements in the regions of Earth has enormous practical importance.(a) Define differentiation, and explain which
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!