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
Furkat [3]
3 years ago
5

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 20.4 g g of carbon were burned in the presence

of 70.4 g
of oxygen, 16.0 g of oxygen remained unreacted. What mass of carbon dioxide was produced?
Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
3 0

Answer:

C + O2 -> CO2

C 20.4/12 = 1.7

O 70.4-16.0/16=3.4

CO2 1.7 mol * 44 = 74.8

You might be interested in
Use the drop-down menus to complete the statements about inertia, earth, and the moon.
Dimas [21]
1) inertia 2) gravity 3) greater
8 0
3 years ago
Read 2 more answers
What takes pictures of clouds and storm systems from the exosphere
tamaranim1 [39]

The answer should be "Satellite." The satellite is placed in the exosphere which allows it to take pictures of the clouds from above, which is also how NASA gets most of it's pictures of the planet.

Hope this helps!

4 0
3 years ago
Help me please i dont understand
Lelechka [254]

Answer:

1. Dissolving powder in milk - Chemical

  - It is chemical because the milk has changed on a molecular level

2. Toasting bread - Chemical

   - It is chemical because adding heat to the bread cooks it, therefore

     changing it on a molecular level

3. Melting cheese - Physical

   - It is physical because the physical appearance was the only change

4. Slicing apples or bannanas - Physical

   - It is physical because the physical appearance was the only change

5. Frying an egg - Chemical

   - It is chemical because new particles were formed

6. Milk souring - Chemical

   -  It is chemical because it is forming a new product (lactic acid)

Explanation:

Physical Change occurs when the particles of a substance become rearranged, but do not change into different particles.  

Chemical change occurs when a new substance is formed. This process is irreversable.

6 0
2 years ago
Read 2 more answers
The church believes all of these except?
pav-90 [236]
I believe it is still A with the current state of things, but there is talk in the church of reforming to allow women priests.
6 0
3 years ago
What is the empirical formula for C14H28O7?​
mrs_skeptik [129]

Answer:

Empirical formula of C4H8O2, is the answer

Explanation:

7 0
3 years ago
Other questions:
  • A Marine bome includes animals like fish, sharks, whales, and freshwater. True or false​
    9·1 answer
  • The metallic radius of a lithium atom is 152 pm. What is the volume of a lithium atom in cubic meters?
    12·1 answer
  • How can people reduce respiratory Diseases & Accidents?
    8·1 answer
  • A sample of N2 gas occupied 9.20 L at 21 degrees C and 0.959 atm. If the pressure is tuned to 1.15 atm at constant temperature w
    6·1 answer
  • What happens when hydrogen gas is passed over hot ferric oxide plzz help ​
    9·1 answer
  • How many grams of NH3 can be prepared from 77.3 grams of N2 and 24.2 grams of H2?
    5·1 answer
  • What is the source of all food energy on Earth?
    7·2 answers
  • If an object has a Mass of 11g and a volume fo 13mil, what is its density?
    6·1 answer
  • The diagram below shows the different phase transitions that occur in matter.
    12·2 answers
  • Is each oxide basic, acidic, or amphoteric in water: (a) SeO₂ ;
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!