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
Mashutka [201]
3 years ago
5

3

Chemistry
1 answer:
Zina [86]3 years ago
5 0

Answer:

Explanation:

n CaCO3 = mass / m.wt

             = 500  /( 40 + 12 + 16x 3)

           =   5 mole

n CaO = 5 moles  ( from the balanced equation we have 1:1 moles )

mass of CaO = nCaO X m.wt

                       5 x(  40 +16 )

                 =   280 grams

You might be interested in
Which example is most likely an inorganic compound? A. methane, which is made of carbon and hydrogen B. glucose, which is a suga
Wittaler [7]

Answer:

The correct answer is C (sodium chloride which is a salt human)

Explanation:

The sodium chloride whose formula is NaCl, corresponds to an ionic compound formed by a metal (Na) and a nonmetal (Cl). It corresponds to an inorganic substance, since it does not have carbon. Organic compounds are those that have carbon (example: glucose, methane, etc.)

7 0
3 years ago
Read 2 more answers
What type of reaction is created by starting a fire by igniting gasoline?
kolezko [41]

Answer:

it a combustion reaction

Explanation:

because fire and gasoline mix together is flammable

6 0
3 years ago
Read 2 more answers
Potassium + Chlorine --> Potassium Chloride
ArbitrLikvidat [17]

Answer:

The balanced equation is 2K(s) + Cl2(g)→2KCl(s)

3 0
3 years ago
Read 2 more answers
A student writes the following explanation of how certain molecules are formed.A process is used to chemically link smaller unit
tensa zangetsu [6.8K]

Answer:

polymerization

Explanation:

Student is explaining the process of formation of a polymer and the process is called polymerization.

Polymer is made up of joining repeating units. The repeating units are called monomers.  

Properties of the polymer is determined by the structure of monomer molecule.

For example, consider a well-known polymer Teflon.is made by the polymerization of tetrafluoroethane.  

Thus, the student is explaining polymerization.

8 0
3 years ago
Why is the average air temperature of Makassar warmer than the average air
Brrunno [24]

Answer:

becuase of the sun

in different places some places would be cold

8 0
3 years ago
Other questions:
  • Give the name and formula of the compound formed from each pair of elements: (a) 37q and 35r (b) 8q and 13r (c) 20q and 53r
    12·2 answers
  • What is the mass in grams of 9.76 × 1012 atoms of naturally occurring beryllium?
    7·2 answers
  • I bet half these people are kids from lhs rite now lol
    9·2 answers
  • Make a drawing of the particles in an NaCl solution to show why this solution conducts electricity. Make a drawing of the partic
    7·1 answer
  • Calculate the density of a sample of metal that has a mass of 1668 g and takes up a volume of 186.2 cm
    14·1 answer
  • Fill in the blanks
    13·1 answer
  • A tank contains 7.0 moles of a mixture of nitrogen gas and oxygen gas. The total
    9·1 answer
  • What does electrical energy transform into when used by objects in a home?(2 points)
    6·1 answer
  • Read, now please rail me jkjkjk.................Unless
    11·2 answers
  • If we eat a sandwich, why does it not come out as a
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!