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
Lesechka [4]
4 years ago
11

Will give branliest! 10 points! - a student has 872g if Pb. how many moles of Pb is this?

Chemistry
2 answers:
Molodets [167]4 years ago
8 0
That would be 10 moles
alukav5142 [94]4 years ago
6 0

Answer:

The answer is 4,2 moles.

Explanation:

n(Pb) = m(Pb) / Ar(Pb, you can see it in periodic table of elements)

= 872 g / 207,2 g moles⁻¹

= 4,2 moles

You might be interested in
Please help thank you (15 points)
Eva8 [605]

Answer:

D. The sun has less gravitational pull on Pluto because it is farther away.

6 0
3 years ago
Plete the following problems significant figures: 6 × 0.30<br>​
jeka57 [31]
6= Only the digits 1 and 6 are the actual measured values. Therefore we have only 2 significant figures.

0.3= Zeros used as placeholders are not significant. Zeros that come before non-zero integers are never significant. Example 5: The zeros in 098, 0.3, and 0.000000000389 are not significant because they are all in front of non-zero integers. c. If the zeros come after non-zero integers and are followed by a decimal point, the zeros are significant.
3 0
3 years ago
Find the molar mass of 2Cu (NO3)2​
8090 [49]

Answer:

187.5558 mol

Explanation:

7 0
3 years ago
Marcia is given an incomplete chemical equation that includes the number of nitrogen atoms present in the products of the reacti
Anna [14]

Answer: There would have to be three nitrogen atoms in the products. The law of conservation of matter states that the amount of substance before a reaction occurs  should be the same as the amount of substance after the reaction.

Explanation: This is the EXACT sample answer from the test, just reword it if you want. ^

7 0
3 years ago
What is the correct name for the compound H2O
Deffense [45]

<u>Answer:</u>

The common name for the compound H2O is water.

<u>Explanation:</u>

The systemic name of H2O is Dihydrogen monoxide.

8 0
3 years ago
Read 2 more answers
Other questions:
  • One of the reactions you observed resulted in this product: nacl + h2o + co2 (g)? what well did this reaction occur in? describe
    14·1 answer
  • Nitric acid (HNO3) is a strong acid, and it is titrated with a standard solution of sodium hydroxide (NaOH), a strong base. Whic
    13·2 answers
  • Question 1 (1 point)
    11·1 answer
  • At constant pressure, which of these systems do work on the surroundings? Check all that apply.
    13·1 answer
  • What do animals mean to you?
    10·1 answer
  • Why is bronze preferred in making statue
    15·1 answer
  • An atom contains 6 protons what element is that​
    6·1 answer
  • An unknown gas is contained in a sealed container. Over time, the gas is gradually cooled until it becomes a solid. Determine wh
    8·2 answers
  • Draw the structure of the alkene with the molecular formula C6H10 that reacts with Br2 to give this compound.
    13·1 answer
  • Who created the first compound microscope and telescope?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!