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
Andreas93 [3]
3 years ago
11

PLEASE PLEASE PLEASE​ ANSWER HAVE MERCY 35 POINTS

Chemistry
1 answer:
Arada [10]3 years ago
6 0
You should give answers since some people will just try and find any answer, which happened to me. So like if you have answers for the question just put them like A B C D kinda like true or false for others to know what they got instead of giving them more work, and then they just give you random answers.
You might be interested in
Refraction occurs when the speed of light changes as it travels between mediums.<br><br><br> T<br> F
Mariana [72]

The answer is true

Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light.The wavelength decreases as the light enters the medium and the light wave changes direction.

5 0
3 years ago
Ca(s)+2hno3(aq)→ca(no3)2(aq)+h2(g) identify the oxidizing agent.
aleksandr82 [10.1K]

To find for the oxidizing agent, first let us write the half reactions of this complete chemical reaction:

Ca = Ca2+ + 2e- <span>
2 H+ + 2e- = H2</span>

 

The oxidizing agent would be the substance of the element that is reduced. We know that an element is reduced when an electron is added to it. In this case, the element being reduced is H. Therefore the oxidizing agent is HNO3.

 

Answer:

<span>HNO3</span>

8 0
3 years ago
Read 2 more answers
Which is the limiting reagent in the following reaction given that you start with 15.5 g of Na2S and 12.1 g CuSO4? Reaction: Na2
NemiM [27]

Answer:

CuSO4

Explanation:

Na2S + CuSO4 → Na2SO4 + CuS

The reaction is balanced (same number of elements in each side)

To determine limiting reagent you need to know the moles you have of each.

Molar mass Na2S = 23 * 2 + 32 = 78

Molar mass CuSO4 = 63.5 + 32 + 16 * 4 = 159.5

Na2S mole = 15.5 / 78 = 0.2

CuSO4 mole = 12.1/159.5 = 0.076

*Remember mole = mass / MM

With that information now you have to divide each moles by its respective stoichiometric coefficient

Na2S stoichiometric coefficient : 1

Na2S : 0.2 / 1 = 0.2

CuSO4 stoichiometric coefficient: 1

CuSO4: 0.076 / 1 = 0.076

The smaller number between them its the limiting reagent, CuSO4

8 0
3 years ago
How many electrons would an atom need to have before it can begin filling the 3s sub level?
schepotkina [342]
Well electrons are like electricity well it is partly if it went 3 sub levels the electrons would blow up some electricty<span />
5 0
3 years ago
How can you tell when a solid substace dissolves in water and does not react
In-s [12.5K]
Like when you put ice in water it starts going down
6 0
3 years ago
Read 2 more answers
Other questions:
  • If you have the element Boron (B) with a mass number of 10, 5 protons, 5 neutrons and 6 electrons, what would be the isotope/ion
    15·1 answer
  • Consider the following reaction where Kc = 154 at 298 K.2NO(g) + Br2(g) 2NOBr(g)A reaction mixture was found to contain 4.64×10-
    11·1 answer
  • A substance whose water solution is a good conductor of electricity is an ________
    11·1 answer
  • ¿que diferencia hay entre psicrómetro e higrómetro?
    12·1 answer
  • Why are measurements important for science?
    10·1 answer
  • The following physical constants are for water, H2O.
    10·1 answer
  • Which term describes atoms with<br> unpaired dots in their electron dot<br> diagrams?
    9·1 answer
  • Give the change in condition to go from a gas to a solid. Group of answer choices cool or increase pressure cool or reduce press
    14·1 answer
  • Determine what’s wrong with these electronic configurations
    10·1 answer
  • How does a wave get taller as
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!