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
Doss [256]
3 years ago
12

10.0 g of calcium carbonate was heated. The mass of calcium oxide left was 5.6 g. Calculate the mass of

Chemistry
2 answers:
timama [110]3 years ago
8 0

Answer:

4.4g

Explanation:

Calculate the molar mass of CaCO3

40+12+(16×3)

40+12+48

100 g/mol

Calculate the molar mass of CO2

12+(16×2)

12+32

44g/mol

100g of CaCO3=44g of CO2

10g of CaCO3=10×44/100

g of CO2=440/100

=4.4g of CO2

Kipish [7]3 years ago
4 0

Answer:

4.4g

Explanation:

Mass of CaCO3 = 10g

Mass of CaO = 5.6g

Mass of CO2 =?

Mass of CaCO3 = Mass of CaO + Mass of CO2

Mass of CO2 = Mass of CaCO3 — Mass of CaO

Mass of CO2 = 10 — 5.6

Mass of CO2 = 4.4g

You might be interested in
Assume that your electrical power company gets its energy from a hydroelectric dam. Outline all of the energy changes that occur
Rina8888 [55]

Answer:

See explanation.

Explanation:

This isn't chemistry. Its physics. Kinetic energy (water) to electric energy (dam) as the hydroelectric dam works. Then, as the current travels from the plant to your crib, electric energy to heat energy (wire resistance). Then when you are using the dryer electric energy to heat energy (hot air) and sound energy (air particles vibrate due to the heat energy).

5 0
2 years ago
How do modern scientists describe the makeup of matter?
zavuch27 [327]
Any substance made out of iotas, that has mass and possesses space. Matter ought not be mistaken for mass, as the two are not the same in current material science. Matter is itself a physical substance of which frameworks might be formed, while mass isn't a substance but instead a quantitative property of issue and different substances or frameworks. While there are diverse perspectives on what ought to be viewed as issue, the mass of a substance or framework is the same regardless of any such meaning of issue. Another distinction is that issue has an "inverse" called antimatter, however mass has no inverse—there is no such thing as "hostile to mass" or negative mass. Antimatter has the same (i.e. positive) mass property as its typical issue partner.
4 0
3 years ago
During prophase, which of the following events
alexdok [17]

Answer:

Spindle fibers form.

DNA condenses into chromosomes.

Explanation:

Prophase is the first stage of mitosis. Mitosis produces 2 daughter cells from a parental cell.

Spindle fibers form - this is true. During prophase, the mitotic spindle forms. Later during mitosis the spindle attaches to the centromere of chromosomes and pulls them to opposite ends of the cell prior to division

DNA condenses into chromosomes.  - this is true. In the nucleus during interphase, the DNA is relatively loosely compacted. However, prior to division, the DNA is condensed into structures called chromosomes which are then paired up and distributed to the daughter cell.

Chromosomes move to opposite ends of the  cell.  - this is false. This happens during anaphase

Nuclear membrane begins to re-form. - this is false. This happens during telophase.

7 0
3 years ago
Which three words best describe the composition of the inner planets? solid, smooth, giant rocky, solid, dense giant, dense, gas
Lapatulllka [165]

Answer:

solid, rocky, dense

Explanation:

3 0
4 years ago
Read 2 more answers
The burr oak trees in the forest are which of these?
hammer [34]

Answer:

I think It is an organism

4 0
2 years ago
Read 2 more answers
Other questions:
  • Which are examples of dynamic equilibrium
    12·2 answers
  • Draw the molecules for the following reaction:
    14·1 answer
  • Suppose a container holds 1000 hydrogen molecules (H2) and 1000 oxygen molecules (O2) that react to form water. How many water m
    8·1 answer
  • Sodium metal is quiet soft whereas sodium chloride crystals are quiet hard explain why
    10·1 answer
  • Which statement concerning elements is true
    10·1 answer
  • A person's heartbeat is 73 beats per minute. If his heart beats 3.1e9 times in a lifetime, how long does the person live?
    8·1 answer
  • 6 C(s) + 3 H2(g) → 2 C6H6(l) Δ H = 49 kJ<br><br> TRUE or FALSE
    13·1 answer
  • On a recent trip to the Fort Worth Zoo, Trevor's parents bought him a helium-filled balloon. At the beginning of the day, the sk
    9·2 answers
  • How does the disturbance travel through the coil when you move your arm back and forth?
    14·1 answer
  • What is the formula for the carboxylic acid functional group?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!