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
Karolina [17]
3 years ago
5

Which of the following is the best description of a career?

Chemistry
1 answer:
MariettaO [177]3 years ago
8 0
Ur best choice is A) you earn more if u work hard 
You might be interested in
How does heat transfer occur?
Sphinxa [80]
I believe your answer is D
7 0
3 years ago
Read 2 more answers
Martin slowly pours an unknown liquid into a container that originally had some water in it. He is measuring the temperature in
Evgen [1.6K]
B. a chemical change
8 0
3 years ago
Read 2 more answers
Each student in a class placed a 2.00 g sample of a mixture of Cu and Al in a beaker and placed the beaker in a fume hood. The s
Aleks [24]

Answer:

Percentage mass of copper in the sample = 32%

Explanation:

Equation of the reaction producing Cu(NO₃) is given below:

Cu(s)+ 4HNO₃(aq) ---> Cu(NO₃)(aq) + 2NO₂(g) + 2H₂O(l)

From the equation of reaction, 1 mole of Cu(NO₃) is produced from 1 mole of copper. Therefore, 0.010 moles of Cu(NO₃) will be produced from 0.010 mole of copper.

Molar mass of copper = 64 g/mol

mass of copper = number of moles * molar mass

mass of copper = 0.01 mol * 64 g/mol = 0.64 g

Percentage by mass of copper in the 2.00 g sample = (0.64/2.00) * 100%

Percentage mass of copper in the sample = 32%

3 0
3 years ago
I need help with this question
dsp73

Answer:

B?

Explanation:

it just makes the most sense in my head

7 0
3 years ago
Read 2 more answers
Which compound is an exception to the octet rule
anyanavicka [17]

I think it's RbCl and CaO
7 0
3 years ago
Other questions:
  • Solid lithium iodide decomposes into solid lithium and iodine gas . Write a balanced chemical equation for this reaction.
    13·1 answer
  • An unknown liquid has a vapor pressure of 88 mmhg at 45°c and 39 mmhg at 25°c. What is its heat of vaporization?
    11·1 answer
  • Consider the following reactions and their respective equilibrium constants: NO(g)+12Br2(g)⇌NOBr(g)Kp=5.3 2NO(g)⇌N2(g)+O2(g)Kp=2
    9·2 answers
  • Can someone answer question 3 ASAP please
    8·1 answer
  • HELP!!! WILL MARK BRAINLIEST!!!
    10·1 answer
  • Strength, sickness, Stretchiness, and color are all different
    7·1 answer
  • I NEED HELP FAST PLEASE<br> *please answer correctly* <br><br> Will mark brainliest thank you!!
    9·2 answers
  • What sort of fossils would be expected to be found in Antarctica from more recent times, after it had moved much closer to the S
    6·1 answer
  • ¿Qué ocurre cuando la radiación del sol atraviesa la atmósfera?
    10·1 answer
  • How do we think that Mars lost atmospheric gas?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!