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
Roman55 [17]
3 years ago
7

Please help IM IN HURRY!!!

Chemistry
1 answer:
Vladimir [108]3 years ago
3 0
1.9000 kilogram/cubic meter
8400 kilogram/cubic meter
19300 kilogram/cubic meter
You might be interested in
What current (in a) is required to plate out 1. 22 g of nickel from a solution of ni2 in 0. 50 hour?
Mashcka [7]

The current required to accumulate the 1.22 grams of nickel in 0.5 hours is 2.23 A.

<h3>What is current?</h3>

The current is given as the product of the charge with time. In the electrochemical analysis of the nickel, there will be a reduction of the nickel ion to nickel. The formation is given as:

\rm Ni^{2+}+2e^-\;\rightleftharpoons Ni

There is the deposition of 1 mole of Ni with 2 electrons transfer. The transfer of charge for 1 mole that is 58.7 grams Nickel is:

\rm 58.7\;g=2\;\times\;96487\;C\\58.7\;g=192974\;C

The mass of Ni to be deposited is 1.22 grams. The charge required is given as:

\rm 58.7\;grams\;Ni=192974\;C\\\\1.22\;grams\;Ni=\dfrac{192974}{58.7}\;\times\;1.22\;C\\\\1.22\;grams\;Ni=4010.7\;C

The current required to transfer 4010.7 C of charge in 1800 seconds is given as:

\rm Charge=Current\;\times\;Time\\4010.7\;C=Current\;\times\;1800\;sec\\Current=2.23\;A

Thus, the current required to accumulate the 1.22 grams of nickel in 0.5 hours is 2.23 A.

Learn more about current, here:

brainly.com/question/23063355

#SPJ4

7 0
2 years ago
An atom of an alkaline earth metal reacts with another element to form a compound. Which element MOSTLY LIKELY combined with the
Jobisdone [24]
O sabe esta pregunta
4 0
3 years ago
Read 2 more answers
List the names and numbers of the nonmetal families
STALIN [3.7K]
<em></em>hydrogen #1   carbon #6     nitrogen #7    oxygen #8    Phosphorus #15    Sulfur #16      Selenium #34
8 0
3 years ago
When the same or different atoms combine together, you have a:
Alex73 [517]

Answer:

D.) molecule

<h3>When the same or different atoms combine together they for a molecule</h3>

3 0
3 years ago
How many electrons does carbon have? <br> a. 3 <br> b. 6 <br> c. 12 <br> d. 24
aalyn [17]
A normal carbon atom has 6 electrons
8 0
3 years ago
Other questions:
  • Who derived benzene in chemistry
    15·1 answer
  • The process by which people walk
    7·1 answer
  • 1. Assuming that you recovered 100% of the acetanilide in the sample, how much of the mass of the original sample was made up of
    8·1 answer
  • What is the same about a proton and electron?
    5·1 answer
  • What is the formula for chromium(iii)hydroxide
    7·2 answers
  • What do non metals do when they ionize
    5·1 answer
  • How do you draw molecular compound structures? Example: C2H2
    9·1 answer
  • Match the element with its number of valence electrons.
    10·2 answers
  • 3. Could a molecule<br> contain only one atom?
    11·1 answer
  • In the compound MgCl2, the subscript 2 indicates
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!