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
quester [9]
3 years ago
12

When something occurs or repeats at regular intervals it is called

Chemistry
1 answer:
tekilochka [14]3 years ago
5 0
It is called Periodic
You might be interested in
Dan described two layers of Earth's atmosphere.
saul85 [17]

There are following layers in earth atmosphere

a) Troposhere: the innermost layer or lowest part of atmosphere

b)stratosphere: next to troposhere

c)mesosphere:above stratosphere, here lowest temperature is observed

d)Thermosphere and Ionosphere: This layer allows long distance radio communication

e)Exosphere: this layer separates outer space from earth's surface.

4 0
2 years ago
Read 2 more answers
When burning petrol in motor vehicles two gases form which contribute to acid rain. what are the two gases?
sukhopar [10]
Nitrogen and Oxygen react to form Nitrogen Oxides. These gasses irritate the lungs and cause acid rain.
8 0
3 years ago
The total mass of the reactants is ________ the total mass of the products in a chemical reaction.
jonny [76]

Answer:

The total mass of the reactants is <u>equal to </u>  the total mass of the products in a chemical reaction.

Explanation:

5 0
3 years ago
Give the major force between ethanol and rubbing alcohol.
insens350 [35]
The major force between ethanol and rubbing alcohol is hydrogen bond. Hydrogen bond are intermolecular force that are weaker than covalent bond but holds atoms together in a molecules. For an hydrogen bond to be formed, a molecule must contain an hydrogen atom that will be bonded to one of the most electronegative element.
7 0
3 years ago
How many molecules are there in 79g of Fe2O3?
weqwewe [10]
There are approximately 160 grams in 1 mol of fe203 molecules therefore there would be 79/160 = 0.49375 mols of fe203 molecules in 79 grams therefore 5 atoms in total for each molecule of fe203 therefore 79/160 *5 =79/32=2.46875 mols in atoms
6 0
3 years ago
Other questions:
  • A material will float on the surface of a liquid if the material has a density less than that of the liquid. Given that the dens
    5·1 answer
  • What is the term for the pattern of spiral impressions inside a handgun?
    14·1 answer
  • Which element has the greatest number of valence electrons available for bonding?
    8·1 answer
  • When sulfur trioxide gas reacts with water, a solution of sulfuric acid forms.Express your answer as a balanced chemical equatio
    8·1 answer
  • Which two properties define the critical point of matter in a phase diagram?
    12·1 answer
  • In the Dumas Method, the volatile sample
    12·1 answer
  • Why does adding lemon juice to a blueberry smoothie<br> make it change color from purple to pink.
    9·1 answer
  • What is The molarity of 1.5N solution of aluminum carbonate
    15·1 answer
  • PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING needed ASAP
    12·1 answer
  • What is the formula for the compound?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!