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
Serjik [45]
3 years ago
7

Having a difficult time please help me ;( I would appreciate whoever helps me thank you! If you can explain that would be awesom

e thank you!

Chemistry
1 answer:
SOVA2 [1]3 years ago
3 0

Answer: A. 11

Explanation: The balance equation is:

C7H16 + 11 O2 => 7CO2 + 8H2O

This is a combustion reaction where a hydrocarbon reacts with oxygen gas to form CO2 and H2O.

You might be interested in
Can someone please answer this?
Amanda [17]

Answer:-

0.229 L

Explanation:-

Molar mass of AgBr = 107.87 x 1 + 79.9 x 1

=187.77 grams mol-1

Mass of AgBr = 150 grams

Number of moles of AgBr = 150 grams / 187.77 gram mol-1

= 0.8 mol

The balanced chemical equation is

NaBr (aq) + AgNO3 (aq)--> AgBr(s) + NaNO3(aq)

From the equation we can see that

1 mol of AgBr is produced from 1 mol of AgNO3.

∴ 0.8 mol of AgBr is produced from 1 x 0.8 / 1 = 0.8 mol of AgNO3.

Strength of AgNO3 = 3.5 M

Volume of AgNO3 required = Number of moles / strength

= 0.8 moles / 3.5

=0.229 L

8 0
4 years ago
What is this. please respond asap. 2 and 3
kolbaska11 [484]

A solid stays the same shape. The atoms a close together and don't move that much. A liquid can form to any shape, the atoms bounce around a little bit, but not much. A gas has no shape, the atoms are few and far between.

A.) Liquid

B.) Solid

C.) Gas

5 0
3 years ago
a truck start from attains a velocity of 20m/s after 10 second , calculate the acceleration. plz help with this ​
Marysya12 [62]

Answer:

= u +at

20m/s = 0 + a*10s

a = 20m//10s

a = 2m/s²

From the data given , it is not possible to calculate the displacement , because no direction of motion is given

But it is possible to calculate the distance travelled

Distance = ut + ½ *a*t²

distance = 0 + ½ * 2m/s * 10²s

distance = 100m

3 0
3 years ago
Where is most of the high-level waste stored in the United States
Anna007 [38]

The correct answer is number 5) at the nuclear reactor site.

Most of the high-level waste stored in the United States is at the nuclear reactor site.

Just people who specialize in the radioactive waste can handle this risky procedure because high-level radioactive waste needs treatment by the experts to truly isolated from the biosphere. Radioactive plants keep the waste deep underground because nobody wants another accident like the one that happened in Chernobyl on April 26, 1986.

The other options of the question were 1) the ocean. 2) mountain peaks. 3) volcanic fissures. 4) salt mines.

8 0
4 years ago
What is the difference between non ionizing and ionizing radiation
Rzqust [24]
Non-ionizing radiation<span> does not carry enough energy to break molecular bonds and</span>ionize<span> atoms. </span>Ionizing radiation<span> is the type of </span>radiation<span> that carries enough energy to break bonds </span>between<span> molecules and </span>ionize<span> atoms.

Hope this helps!</span>
7 0
4 years ago
Read 2 more answers
Other questions:
  • Why did Thomson’s results from experimenting with cathode rays cause a big change in scientific thought about atoms
    7·2 answers
  • What do scientists do to receive suggestions and criticism of their research from other scientists
    8·2 answers
  • What is the chemical formula for sodium nitrate?
    6·1 answer
  • Please help quick! Will give brainiest if you are correct!
    5·1 answer
  • The gas molecules that make up air are in two rooms. The gas molecules in the kitchen are moving faster than the gas molecules i
    15·1 answer
  • Which of the following is the best example of a valid hypothesis? A People should eat vegetables. B Children like Jiffy™ peanut
    11·1 answer
  • What is one example of reusing water?
    11·2 answers
  • What is the mass of 0.28 moles of iron
    15·2 answers
  • How many atoms are found in 6.50 moles of iron
    6·1 answer
  • Which of the following arrangements of the visible colors of light is in the correct order of increasing energy?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!