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
wariber [46]
2 years ago
5

Show all calulations

Chemistry
1 answer:
Black_prince [1.1K]2 years ago
5 0
Im confused here. Add the rest of the question for me to help you
You might be interested in
Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred that produ
marin [14]

Answer: 11 g

Explanation:

Zn + 2HCl    →   ZnCl₂ + H₂

Number of moles of Zn:

Number of moles = 5 g / 65.38 g/mol

Number of moles = 0.08 mol

Number of moles of HCl :  

Number of moles = 50 g / 36.5 g/mol

Number of moles = 1.4 mol

Compare the moles of both reactant with zinc chloride:

             Zn             :           ZnCl₂

              1             :             1

             0.08       :        0.08

           HCl          :         ZnCl₂

             2            :           1

            1.4          :         1/2×1.4 =0.7 mol

The number of moles of zinc chloride produced by Zn are less so it will limit reactants.

Mass of zinc chloride:

Mass = 0.08 mol × 136.3 g/mol

<u>Mass = 11 g</u>

6 0
3 years ago
Which of the following is an oxidation-reduction reaction? Fe2O3 3CO Right arrow. 2Fe 3CO2 CuSO4 2NaOH Right arrow. Cu(OH)2 Na2S
Damm [24]

The reaction, Fe2O3 + 3CO------> 2Fe + 3CO2 is an oxidation-reduction reaction.

An oxidation-reduction reaction is a reaction in which there is a change in oxidation number from left to right in the reaction. This is because, a specie is oxidized and another specie is reduced.

In the reaction;  Fe2O3 + 3CO------> 2Fe + 3CO2, we can see that the oxidation number of iron decreased from +3 on the left hand side to zero on the right hand side. The oxidation number of carbon was increased from + 2 to +4.

Learn more: brainly.com/question/10079361

6 0
3 years ago
How many moles of carbon are there in a 12.000 g (60.00 carat) diamond?
svetlana [45]
12/12= 1 mol
this is because: amount of moles=mass/relative formula mass and the relative formula mass of carbon is 12
8 0
3 years ago
Classify the following reactions: HNO3(aq)+NH3(aq)→NH4NO3(aq)+H2O(l) 2Cu(s)+O2(g)→2CuO(s) NaCl(aq)+AgNO3(aq)→NaNO3(aq)+AgCl(s) 2
Licemer1 [7]

Answer:

- HNO3(aq)+NH3(aq)→NH4NO3(aq)+H2O(l): neutralization.

- 2Cu(s)+O2(g)→2CuO(s): redox.

- NaCl(aq)+AgNO3(aq)→NaNO3(aq)+AgCl(s): precipitation.

- 2LiOH(aq)+H2SO4(aq)→Li2SO4(aq)+2H2O(l): neutralization.

- CaCl2(aq)+K2CO3(aq)→2KCl(aq)+CaCO3(s): precipitation.

Explanation:

Hello,

Based on the given reaction and their classification as redox, neutralization or precipitation, one obtains:

- HNO3(aq)+NH3(aq)→NH4NO3(aq)+H2O(l): neutralization as ammonia which is a base, is reacting with nitric acid which is an acid to yield ammonium nitrate which is a base.

- 2Cu(s)+O2(g)→2CuO(s): redox as both copper's and oxygen's oxydation states change by increasing by 2 and reducing by 2 respectively.

- NaCl(aq)+AgNO3(aq)→NaNO3(aq)+AgCl(s): precipitation as the inital reactants are soluble but the yielded silver chloride is not.

- 2LiOH(aq)+H2SO4(aq)→Li2SO4(aq)+2H2O(l): neutralization as lithium hydroxide which is a base reacts with sulfuric acid which is an acid to yield lithium sulfate which is a salt.

- CaCl2(aq)+K2CO3(aq)→2KCl(aq)+CaCO3(s): precipitation since both calcium chloride and potassium carbonate are soluble whereas calcium carbonate is not.

Best regards.

3 0
3 years ago
What do you think caused this land formation ?
labwork [276]
Erosion has caused it
7 0
3 years ago
Other questions:
  • A quantity of 0.225 g of a metal M (molar mass = 27.0 g/mol) liberated 0.303 L of molecular hydrogen (measured at 17°C and 741 m
    14·1 answer
  • Please help!!!
    9·1 answer
  • Which process occurs in an operating voltaic cell ?
    5·1 answer
  • Please help me!!!
    6·1 answer
  • Write a hypothesis about whether radiation has the same impacts on coastal areas, forest areas, and desert areas.
    12·1 answer
  • Ecological succession is
    12·1 answer
  • PLEASE HELP!!!! Assuming a lacrosse ball weighs 5.5 ounces and is made of mainly rubber which has a mass of 82.2 g/mol, how many
    7·1 answer
  • A measure of the average kinetic energy of particles is
    7·1 answer
  • PLS HELP
    7·1 answer
  • Which of the following compounds has the general formula X3Y2?Which of the following compounds has the general formula X3Y2?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!