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
Crazy boy [7]
2 years ago
6

1- the Nalt and Gil- Cu2+ ad out- what are the spectator ions in this reaction

Chemistry
1 answer:
Mrac [35]2 years ago
3 0

Answer:

cu2 is 5he correct answer

You might be interested in
In Chromium-53, the "53" represents the
alina1380 [7]

Answer:

The differemt isotopes that differ in atomic mass

Explanation:

4 0
2 years ago
Read 2 more answers
Consider 2H2 + O2 → 2H2O. To produce 1.2 g water, how many grams of H2 are required? Report to the correct number of significant
Elden [556K]

Answer:

0.133 mol (corrected to 3 sig.fig)

Explanation:

Take the atomic mass of H=1.0, and O=16.0,

no. of moles = mass / molar mass

so no. of moles of H2O produced = 1.2 / (1.0x2+16.0)

= 0.0666666 mol

From the equation, the mole ratio of H2:H2O = 2:2 = 1:1,

meaning every 1 mole of H2 reacted gives out 1 mole of water.

So, the no, of moles of H2 required should equal to the no, of moles of H2O produced, which is also  0.0666666 moles.

mass = no. of moles x molar mass

hence,

mass of H2 required = 0.066666666 x (1.0x2)

= 0.133 mol (corrected to 3 sig.fig)

3 0
3 years ago
scandium47 has a half-life of 35s. suppose you have a 45g sample of scadium 47 how much of the sample remains unchanged after 14
Mars2501 [29]

 The much  of the sample that would remain  unchanged  after 140 seconds is 2.813 g

Explanation

Half life  is time taken for the quantity  to reduce  to half its original value.

if the half life  for Scandium  is 35 sec, then the number  of half life in 140 seconds

=140 sec/ 35 s = 4 half life

Therefore 45 g after first half life = 45 x1/2 =22.5 g

               22.5 g after second half life = 22.5 x 1/2 =11.25 g

            11.25 g after third half life = 11.25 x 1/2 = 5.625 g

             5.625 after  fourth half life = 5.625 x 1/2 = 2.813

therefore 2.813 g  of Scandium 47 remains  unchanged.

4 0
3 years ago
How many quantum numbers are used to describe the properties of electrons in atomic orbitals?
LenaWriter [7]
4 Quantum numbers are used

1.Azimuthal
2.Principal
3.Spin
4.Magnetic
6 0
3 years ago
How many moles of hydrogen gas<br> are produced when 3.8 moles of HCI<br> are reacted?<br> O 1.9 mol
igor_vitrenko [27]
1.9 mol H2.
3.8 mol HCl * (1 mol H2 / 2 mol HCl) = 1.9 mol H2
3 0
3 years ago
Other questions:
  • What does the law of convservation of matter show?​
    15·1 answer
  • When a substance melts, is energy being added or removed?
    5·2 answers
  • What is the ph of an aqueous solution with the hydronium ion concentration : [h3o+] = 3 x 10-5 m ?
    5·1 answer
  • When 50.0 ml of a 0.3000 m agno3 solution is added to 50.0 ml of a solution of mgcl2, an agcl precipitate forms immediately. the
    5·2 answers
  • Define metallic bond
    6·2 answers
  • Care needs to be taken when adding acid to base because
    10·1 answer
  • Periodic Table Escape<br> Enter the correct 4 digit code (no spaces) *
    14·1 answer
  • Which will not appear in the equilibrium constant expression for the reaction below?
    8·1 answer
  • What determines whether something is a solid, liquid or a gas?​
    15·1 answer
  • Identify the species that is oxidized and the species that is reduced in this reaction. Also, identify the oxidizing agent and t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!