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
Anni [7]
1 year ago
13

Is 4Na2CO3 a mixture why or why not?

Chemistry
1 answer:
IgorLugansk [536]1 year ago
3 0

Answer:

In the United States today, no federal law prohibits human cloning, either for purposes of reproduction or for purposes of biomedical research.

Explanation:

You might be interested in
HELP HELP HELP HELP HELP HELP!!!!!!
Mumz [18]

Answer:

He should eat fruits and vegetables and also skip

8 0
3 years ago
The ____________ is inversely proportional to the wavelength and reported in reciprocal centimeters (cm−1). A technique used for
san4es73 [151]

Answer:Please see below in the explanation column for answers

Explanation:

-The WAVENUMBER____________ is inversely proportional to the wavelength and reported in reciprocal centimeters (cm−1).

- A technique used for measuring the molecular weight and determining the molecular formula of an organic molecule is __MASS SPECTOMETRY__________ .

-A compound that contains an odd number of _____N_______ atoms gives a molecular ion an odd mass.

-When the molecular ion consists of two peaks (M and M+2) in a 1:1 ratio, a ___Br, Bromine_________ atom is present in the molecule.

-For a bond to absorb in the IR, there must be a change in the dipole moment during the __VIBRATION_______ .

-Organic chemists use ____iNFRA RED SPECTROSCOPY_______ to identify the functional groups in a compound.

-When the molecular ion consists of two peaks (M and M+2) in a 3:1 ratio, a ______Cl , chlorine______ atom is present in the molecule.

- The higher the percent s-character, the strong the bond, and the _______HIGHER_____ the wavenumber of an IR absorption.

-Hydrocarbons and compounds that only contain C, H, and O atoms always have a molecular ion with an __ EVEN__________ mass.

3 0
3 years ago
Explain why iron structures need protection from corrosion while aluminium structures do not?
KiRa [710]
<span>Because aluminium oxide is strong and forms a coating over itself, but iron oxide (rust) will flake away.</span>
4 0
3 years ago
.How many moles of NaCl are in 28.0 g?
Kisachek [45]

Answer:

0.48 mols

Explanation:

to convert moles to mass u need to divide mass by the molar mass of NaCl which is 58.44g/mols.

28g ÷ 58.44g/mol = 0.48 mols

8 0
3 years ago
Luster, conductivity, and malleability are physical properties of metals. What makes these properties different from chemical pr
Alla [95]

Answer:

C

Explanation:

A Is false because physical properties can relate to any chemical substance.

B Is false because physical properties are apparent wether a chemical change has occurred or not.

C Is correct because physical properties can be observed without making a chemical change to the substance, chemical properties cause physical properties but a chemical change is not needed to observe a physical property.

D Physical properties describe compounds in all phases of matter.

3 0
4 years ago
Other questions:
  • A fox spots a rabbit in a field. The fox begins to chase the rabbit, and the rabbit runs away. Which statement best describes th
    13·2 answers
  • The trna anticodon, gac, is complementary to the mrna codon with the sequence _____.
    12·2 answers
  • 1. Calculate the work, w, gained or lost by the system when a gas expands from 15 L to 50 L against a constant external pressure
    14·1 answer
  • PLEASE HELP, 5 STARS, 35 POINTS + PRIZE The reaction C4H8(g)⟶2C2H4(g) has an activation energy of 262 kJ/mol. At 600.0 K, the ra
    15·1 answer
  • Covalent Bonding
    9·1 answer
  • Which of the following is true about melting point determination?
    8·1 answer
  • The rate constant for this first‑order reaction is
    15·1 answer
  • true it false: Liquid molecules have more room to slide past one another which ls why they can easily change shape​
    10·1 answer
  • Isotopes decay because,
    5·1 answer
  • 3. Skunks run about 10 miles per hour and won't try to outrun a predator. Instead, they
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!