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
Zolol [24]
2 years ago
11

How many atoms of oxygen are present: 3Al2(SO4)3 a. 36 b. 12 c. 10 d. 24

Chemistry
1 answer:
Ira Lisetskai [31]2 years ago
6 0

Answer:

the answer is 12

Explanation:

In one formula unit of Al2(SO4)3 A l 2 ( S O 4 ) 3 , there would be twelve atoms of oxygen.

You might be interested in
Consider an ice cube and a hot radiator. Which has the higher thermal energy?
Law Incorporation [45]
The answer to your question is the radiator
8 0
3 years ago
A sample of gas X occupies 10 mº at a pressure of 120 kPa.
Mashutka [201]

Answer:

The new pressure of the gas comes out to be 400 KPa.

Explanation:

Initial volume of gas = V = 10\textrm{ m}^{3}

Initial pressure of gas = P = 120 KPa

Final volume of gas = V' = 3\textrm{ m}^{3}

Assuming temperature to be kept constant.

Assuming final pressure of the gas to be P' KPa

PV = P'V' \\120\textrm{ KPa}\times 10\textrm{ m}^{3} = \textrm{P'}\times 3\textrm{ m}^{3} \\\textrm{P'} = 400\textrm{ KPa}

New pressure of gas = 400 KPa

5 0
3 years ago
This week and last, we've be talking a lot about liquid properties. For me, these always tie in to cooking. Often times when we
-Dominant- [34]

Answer:

It makes the pasta to get hot faster and boil quicker.

Explanation:

Adding salt to water actually raises the boiling point of the water, due to a phenomenon called boiling point elevation. Essentially, adding any non-volatile solute such as salt to a liquid causes a decrease in the liquid’s vapour pressure. A liquid boils when the vapour pressure above it equals atmospheric pressure, so a lower vapour pressure means you need a higher temperature to boil the water. The reason salt makes water boil faster has to do with specific heat capacities, or the energy it takes to raise the temperature of a substance. Salt ions dissolved in water bind to water molecules, holding them stable and making it harder for them to move around. As a result, the non-salt bound water molecules receive more of the energy provided by the stove, and therefore they get hot faster and boil quicker.

6 0
4 years ago
Read 2 more answers
Are all living things made up of two or more cells?
Sergeu [11.5K]
Yes all living things are mad up of two or more cells

6 0
3 years ago
Read 2 more answers
Lithium carbonate, li2co3, contains 18.8 % lithium and is used in the treatment of mental illnesses such as bipolar disorder. wh
masha68 [24]
Assuming that the percentage composition is on the basis of weight percentage, therefore the mass of lithium would simply be the product of the two, that is:
mass Lithium = 0.188 * 1.70 g
mass Lithium = 0.3196 g = 0.32 g
5 0
4 years ago
Other questions:
  • If a solid line represents a covalent bond and a dotted line represents intermolecular attraction, which of these choices shows
    9·1 answer
  • Which term describes matter that is a substance made of diffrent kinds of atoms bonded together
    8·1 answer
  • Glucose (C6H12O6) can be fermented to yield ethanol (CH3CH2OH) and carbon dioxide (CO2). C6H12O6⟶2CH3CH2OH+2CO2 The molar mass o
    15·1 answer
  • two atoms respectively have Z=12, A=26 and Z=14, A=26. Can these two atoms be classified as isotopes of the same element?
    8·1 answer
  • Unknown element x has four energy levels, five valence electrons, and is a metalloid. what is elements x?
    10·1 answer
  • Chemical reactions occur when molecules or atoms collide in a way that the bonds between atoms break and new bonds form. Breakin
    14·1 answer
  • Consider the reaction below.
    6·1 answer
  • How many significant figures? A) 1234500_______ B) 1230.0_____ C) 0.10220____ D) 34560000______ E) 0.0000302010_______ F) 0.0205
    13·1 answer
  • How is bakelite made and what is it used for?
    6·1 answer
  • What is the crystalline arrangement of atoms shown here?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!