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
romanna [79]
3 years ago
8

At high temperatures, calcium carbonate (CaCO3) decomposes to form calcium oxide (CaO) and carbon dioxide (CO2) gas. The average

mass of 1 calcium oxide molecule is 56.079 amu, and the average mass of 1 carbon dioxide molecule is 44.009 amu.
CaCO3 CaO + CO2
Which is the total mass of the 1 calcium carbonate molecule?
A. 12.070 amu
B. 44.009 amu
C. 56.079 amu
D. 100.088 amu
Chemistry
1 answer:
bulgar [2K]3 years ago
4 0

Answer:

Option D is correct

Explanation:

The individual mass of reactants in the reaction are

Calcium Oxide (CaO) =  56.079 amu

Carbon dioxide (CO2) = 44.009 amu

Since this reaction is a simple addition reaction in which no mass of the reactants is wasted. Also, no energy is released accompanied by conversion of mass into energy.

Hence, total mass of reactants would be equal to the mass of the product.

Thus, mass of calcium carbonate i.e CaCO3  is

= 56.079 + 44.009 \\

= 100.08 amu

Hence, option D is correct

You might be interested in
Campare and Conteast Physical and chemical properties.
I am Lyosha [343]

Answer:

Physical properties are changes in color, weight, mass, density, volume, whether it is freezing, tarnishing, boiling, etc. while chemical properties are changes in the compound of the object such as whether an object is/isn't flammable, affected by acid, it dissolves, ferments, rots, ignites in water, etc.

Explanation:

Physical property examples: a piece of steel is cut in half, a sugar cube is ground up into a powder, ice melts into water, clouds form in the sky, you mow the lawn, the water turned purple when you dropped red and blue dye in it, leaves grow in the spring, ethyl alcohol boils at 79° C, you cut apples up

Chemical property examples: pancakes cook on the griddle, fireworks explode in th sky, Alka-Seltzer gives off carbon dioxide when added to water, roasting a marshmellow, milk sours when left on the counter, burning wood in a bonfire, salt dissolves in water, food is digested in the stomach

3 0
3 years ago
What is a common feature of elements in group 1, group 2 and group 3?​
Papessa [141]

Answer:

all of them have seven valence electron

8 0
2 years ago
Read 2 more answers
Organize the following list of atoms from lowest to highest Electronegativity:
Anon25 [30]

Answer:

Barium<Strontium<Calcium <Magnesium< Beryllium

Explanation:

Electronegativity is defined as the ability of an atom in a bond to attract the shared electrons of the bond towards itself.

Electronegativity is a periodic trend that decreases down the group and increases across the period.

Hence, if i want to arrange Beryllium, Barium, Strontium, Magnesium, Calcium in order of increasing electronegativity, i will have;

Barium<Strontium<Calcium <Magnesium< Beryllium

5 0
3 years ago
____________  was the first chemist to organize elements by atomic number
Natalija [7]

Answer:

Henry Moseley

Explanation: Passed with 98

4 0
3 years ago
The EPA scientist measures the pH level in one area of a river to be lower than normal and writes that a pollutant must have bee
shutvik [7]
Its an example of inference. 
4 0
3 years ago
Read 2 more answers
Other questions:
  • The water in a carbonated drink is the <br> A solute <br> B soultion <br> C solvent <br> D mixture
    11·1 answer
  • Which choice best names the type or types of rock that can become metamorphic rock?
    12·2 answers
  • An electron in a hydrogen atom moves from level 3 to level 1. In a second hydrogen atom, an electron drops from level 2 to level
    8·2 answers
  • The most important commercial process for generating hydrogen gas is the water-gas shift reaction:. CH4(g) + H2O(g) → CO(g) + 3H
    6·2 answers
  • Which of the following is necessary to increase the rate of a reaction? A. a decrease in the frequency of collisions B. an incre
    12·2 answers
  • Neon is an inert gas and has the atomic number of 10. Which of the following correctly depicts its electron configuration? 1s22d
    12·1 answer
  • The hydroxyl radical, a fragment of water vapor known as the "atmospheric cleanser", with a chemical formula of OH, has a global
    8·1 answer
  • In a fizzy drink container how is steel separated from aluminium
    5·1 answer
  • How many moles of Oxygen (O) are in 20.15x10^25 atoms of O?
    7·1 answer
  • Two children are waiting to go down a slide the first child goes down and then stays sitting at the bottom of the slide if there
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!