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
Dima020 [189]
3 years ago
13

Animation shows a complete revolution of the Earth around the sun. What happens during this time? The moon makes one complete ph

ase change. The moon makes one complete phase change. Four seasons occur on Earth. Four seasons occur on Earth. Earth experiences a complete day. Earth experiences a complete day. Day turns to night.
Chemistry
1 answer:
docker41 [41]3 years ago
5 0

Answer:

Four seasons occur on Earth

Explanation:

When the Earth has completely one revolution around the Sun, then it has completed 1 year, and four seasons have occurred in the meantime.

You might be interested in
Nickel has chemical symbol Ni and the atomic 28. How many protons,neutrons,and electronic would be found in an atom of nickel-78
ira [324]
In nickel-78, there are 28 protons, 28 electrons, and 50 neutrons.

The protons is always the atomic number.
The electron would always be the atomic number when it's a neutral atom. (Different for isotopes)
The neutrons is always the number that makes up the mass with protons. You can figure it out by subtracting atomic mass by protons. (78-28 = 50)
8 0
3 years ago
Read 2 more answers
What’s the formula for Lead(II) chlorite?
elena-s [515]

Answer:

Pb(ClO2)2

Explanation:

4 0
3 years ago
A sample of cacl2⋅2h2o/k2c2o4⋅h2o solid salt mixture is dissolved in ~150 ml de-ionized h2o. the oven dried precipitate has a ma
Paraphin [41]

We are given that the balanced chemical reaction is:

cacl2⋅2h2o(aq) + k2c2o4⋅h2o(aq) ---> cac2o4⋅h2o(s) + 2kcl(aq) + 2h2o(l)

We known that the product was oven dried, therefore the mass of 0.333 g pertains only to that of the substance cac2o4⋅h2o(s). So what we will do first is to convert this into moles by dividing the mass with the molar mass. The molar mass of cac2o4⋅h2o(s) is molar mass of cac2o4 plus the molar mass of h2o.

molar mass cac2o4⋅h2o(s) = 128.10 + 18 = 146.10 g /mole

moles cac2o4⋅h2o(s) = 0.333 / 146.10 = 2.28 x 10^-3 moles

Looking at the balanced chemical reaction, the ratio of cac2o4⋅h2o(s) and k2c2o4⋅h2o(aq) is 1:1, therefore:

moles k2c2o4⋅h2o(aq) = 2.28 x 10^-3 moles

Converting this to mass:

mass k2c2o4⋅h2o(aq) = 2.28 x 10^-3 moles (184.24 g /mol) = 0.419931006 g

 

Therefore:

The mass of k2c2o4⋅<span>h2o(aq) in the salt mixture is about 0.420 g</span>

3 0
2 years ago
Read 2 more answers
An ion has 14 neutrons, 10 electrons, and a mass number of 27 what element
nasty-shy [4]

The ion is Al³⁺

mass number - number of neutrons= atomic number

27 - 14 = 13

Aluminum has an atomic number of 13, thus we know this is the metal in question. Also, because the aluminum has only 10 electrons, (3 less than a neutral atom of aluminum would have), its charge must be 3+

4 0
3 years ago
What you think would happen if global warming caused a decrease in all clouds
marta [7]

Answer:

Global warming is expected to cause changes in the amount of cloud cover, and the height and thickness of these clouds in the future, shifting the balance between the parasol and blanket effects of clouds. The knock-on effect this will have on temperature is known as cloud feedback

Explanation:

Global warming is expected to cause changes in the amount of cloud cover, and the height and thickness of these clouds in the future, shifting the balance between the parasol and blanket effects of clouds. The knock-on effect this will have on temperature is known as cloud feedback

7 0
3 years ago
Other questions:
  • n a chemical reaction, water decomposes to form hydrogen and oxygen. What is the correct term for the water? Question 5 options:
    9·1 answer
  • Please make the following calculation and round your
    7·1 answer
  • How many atoms are present in 3.14 grams of copper(Cu)?
    12·1 answer
  • You use a balance to find the mass of a folded newspaper. Then you run it through a shredder. Predict its mass after being shred
    14·1 answer
  • (PLEASE HELP will give first correct answer brainliest!!) Which option correctly describes glucose catabolism?
    11·2 answers
  • Which statement is NOT true about energy?
    10·1 answer
  • What cannot be changed by turning 100 grams of ice into water?
    11·1 answer
  • How would I use the word evolution in a sentence?
    15·1 answer
  • Rank the following from smallest to largest atomic/ionic radius.
    9·1 answer
  • Which structure is not an isomer of pentane and state why?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!