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
Umnica [9.8K]
3 years ago
6

????how many students failed this science class???

Chemistry
1 answer:
deff fn [24]3 years ago
6 0

Answer:

B

Explanation:

You take the 50-69 and you add up the students and it will allow you to get 7

You might be interested in
Write the mechanism of the reaction of methyl benzoate to form methyl 2-nitrobenzoate.
Galina-37 [17]
The question is partially incorrect, because nitration of <span> methyl benzoate results in generation of methyl 3-nitrobenzoate, and not methyl 2-benzoate.

This a because of the present of ester group, which deactivated benzene ring at ortho and para position. Due to this, the electrophile (NO2+) attackes on meta position.

The detailed mechanism is attached below.</span>

8 0
3 years ago
Read 2 more answers
Carbon exists in nature as three isotopes. Given the atomic masses and relative abundance of the isotopes, what is the average a
Ivan

The most abundant carbon isotope is carbon-12.

The relative atomic mass of carbon is 12.011, which is extremely close to 12.0. This means that the masses C-13, and C-14 are practically negligible when contributing to the relative atomic mass of carbon.

the C-12 isotope makes up 98.9% of carbon atoms, C-13 makes up 1.1% of carbon atoms, and C-14 makes up just a trace of carbon atoms as they are found in nature.

6 0
3 years ago
HELP ITS DUE IN 10 MIN How long will it take an object to move 100 meters if the object is traveling with an average
tiny-mole [99]

Answer:

Would it be<em><u> 7.69 seconds</u></em>?

Explanation:

5 0
3 years ago
Nagine you are repeatedly lifting a weight into the air up to a height of 2 m. Assuming in each litt
Mariulka [41]

Answer:

A

Explanation:

8 0
3 years ago
1) Which of the following is the best example of a physical change?
never [62]

1 is b and 2 is also b

4 0
3 years ago
Other questions:
  • 4Fe + 3O2à 2Fe2O3 is a balanced equation. What is the charge on each iron (Fe) ion in hematite (Fe2O3)?
    8·2 answers
  • If we used wave energy to produce electricity which of the following would be a positive environment
    9·1 answer
  • Maria rolls a die. What is the chance of her rolling a 4?
    8·2 answers
  • Do two objects with the same mass always have the same volume
    15·1 answer
  • What is the concentration of bromide, in ppm, if 12.41 g MgBr2 is dissolved in 2.55 L water.
    5·1 answer
  • In which of the following types of reactions are electrons gained?
    10·2 answers
  • How many moles of potassium bromide (KBr) are in 97.569 grams?
    11·1 answer
  • Las plantas ingieren alimentos del exterior?​
    11·1 answer
  • How many moles are in 2.5g of n2
    8·2 answers
  • Does this chemical equation satisfy the Law of Conservation of Mass? CS 2 +O 3 --&gt;CO 2 +SO 2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!