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
barxatty [35]
3 years ago
6

Chemical change example

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

Answer: burning paper

Explanation:

The paper burns in air to form smoke and ash. which makes it a chemical change.

You might be interested in
How do cells use lipids and carbohydrates?
Nata [24]

Answer:

Animals tend to use carbohydrates primarily for short-term energy storage, while lipids are used more for long-term energy storage. Carbohydrates are stored as glycogen in animals while lipids are stored as fats (in plants carbohydrates are stored as cellulose and lipids as oils)

Explanation:

hope this helps!

8 0
3 years ago
Read 2 more answers
Which of the following is NOT a produce of the neutralization reaction between hydrochloric acid and sodium carbonate?
Tanya [424]
Hope this helps, have a nice day ahead!

4 0
3 years ago
Read 2 more answers
A student dropped a piece of nickel metal into a solution of HCl(aq). He observed the formation of gas bubbles and collected the
omeli [17]

Answer:

a. The student performed the splint test incorrectly. He should of observed a popping sound when the splint was placed in the test tube.

Explanation:

It is given that a student performed an experiment where he dropped a nickel metal in to HCl solution. He observed the reaction and performed a splint test in the test tube that is filled with a gas which is formed while Nickle is dropped into the solution of HCl.

But the experiment that the student performed was incorrect. He must have observed the popping sound when the splint was placed in the test tube.

When the splint was added to the gas splint flared up. The hydrogen gas pops out when exposed to the flame.

$Ni + HCl(aq) = NiCl + H_2$

Thus the correct option is (a).

5 0
2 years ago
Consider the reaction 2 S + 3 O2 → 2 SO3 , which has a 75.1% yield. How much O2 is consumed if 583 g of SO3 are produced?
Ymorist [56]

Answer:

A/1.      10.9 mol O2

Explanation:

583 g x 1 mol SO3 x 3 mol O2 /

      80.057 g mol SO3 x 2 mol SO3

- You just need to find molar mass of SO3, which is 80.057 g.

- Everything else came from formula. Further explanation...

- Always start with what they give, such as 583 g. Then find 1 mol of what is being produced, in this it is SO3. We already found this because we did molar mass above. Next. find how many moles of what they want, which is O2. Look in equation and you can see 3 mol in from of O2. Next, do the same for SO3 and you can find 3 mol in front of that. Lastly, just do the math.

- If you need a further explanation or more help on any problems I would be happy to help, just let me know.

4 0
2 years ago
Why will paper stick to a ballon that you have rubbed on your hair?
Usimov [2.4K]
Depending on the balloon, the surface will cause friction between the two and oxygen molecules will fuse together to create a sticky sensation
7 0
3 years ago
Other questions:
  • What happens to electrons in ionic bonds?
    8·1 answer
  • Magda has the two magnets shown below what will happen if magda tries to push the north poles of the two magnets toward one anot
    12·1 answer
  • A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lo
    10·2 answers
  • This type of formula indicates the kind, number, arrangement, and bonds but not the unshared pairs of the atoms in a molecule.
    15·1 answer
  • Now look closely at the patterns in the table. Compare the elements in each column and row. What can we say about
    6·1 answer
  • If anyone can answer all these questions you can get 35 points
    10·1 answer
  • Are weathering and erosion two different names for the same process? Explain why or why not.PLEASE HELP!
    9·1 answer
  • Why is ice melting a physical change?
    14·2 answers
  • What was the main weakness of Bohr's model of the atom?
    6·1 answer
  • If a body is buried, the process of complete _____ can take up to two years to complete.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!