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
VLD [36.1K]
3 years ago
14

Which of the following examples best demonstrates kinetic energy?

Chemistry
1 answer:
Vlada [557]3 years ago
4 0
Answer:-

Thanks for not describing your question well enough
You might be interested in
200g of solution of magnesium
diamong [38]

The mass of reacted magnesium chloride is 23.75g, percent by mass of solution magnesium chloride is 90.9%.

<h3>What is the relation between mass & moles?</h3>

Relation between the mass and moles of any substance will be represented as:

n = W/M, where

  • W = given mass
  • M = molar mass

Moles of MgCl₂ = 200g / 95g/mol = 2.1mol

Moles of NaOH = 20g / 0.5mol

Given chemical reaction is:

MgCl₂ + 2NaOH → 2NaCl + Mg(OH)₂

From the stoichiometry of the reaction it is clear that

  • 1 mole of MgCl₂ = reacts with 2 moles of NaOH
  • 0.5 mole of NaOH = reacts with (1/2)(0.5)=0.25 moles of MgCl₂

Mass of reacted MgCl₂ = (0.25mol)(95g/mol) = 23.75g

Percent by mass of MgCl₂ in the given solution mixture will be calculated as:

  • % by mass = (Mass of MgCl₂ / Total mass of mixture) × 100%
  • Percent by mass of MgCl₂ = (200/200+20)×100% = 90.0&

In the above reaction we obtain NaCl as a solid, and MgCl₂ is the limiting reagent in it, from which 2 moles of NaCl is produced means

  • 0.25 moles of MgCl₂ = produces 0.5 moles of NaCl

Mass of NaCl = (0.5mol)(58.5g/mol) = 29.25g

Hence, mass of reacted MgCl₂ is 23.75g, percent by mass of solution magnesium chloride is 90.9% and mass of the obtained solid is 29.25g.

To know more about mass & moles, visit the below link:

brainly.com/question/20838755

#SPJ1

8 0
1 year ago
A tool that can be measure of force
german
A dynamometer is used in measuring force!
4 0
3 years ago
Read 2 more answers
How many grams do 3.6 x10^20 atoms of silicon weigh?
creativ13 [48]
First, we divide the number of atoms of silicon given in the problem above by Avogadro's number 6.6022 x10^23. This will give us the number of moles of silicon. Then, we multiply the number of moles by the molar mass of silicon. 
number of moles = (3.6 x 10^20 atoms/6.022x10^23 atoms) = 5.97x10^-4 moles
Then, multiplying by the molar mass
                  (5.97x10^-4 moles)(28.0855 g/mol) = 0.017 grams
4 0
2 years ago
Electronegativity values increase from left to right across a period in the periodic table because there is an increase in the c
Mademuasel [1]
First, let us define Electronegativity. Electronegativity is "the ability of an atom to attract electrons." In addition, electronegativity increases in elements from left to right, while on the other hand, electronegativity decreases from top to bottom in an element group. It decreases because the atomic radius increases as we go downward an element in the group.
5 0
3 years ago
Please helpplease please..help
Vinil7 [7]

Answer:

vague symptoms are characteristic of an acute toxin, because of the of the lack of well defined consistency that these symptoms have in relation to the course of the disease progress.

3 0
3 years ago
Other questions:
  • What will happen if you add a mild acid to a solution that is buffered at ph = 7?
    13·1 answer
  • Given that 7.25 moles of carbon monoxide gas are present in a container of volume 11.90 L, what is the pressure of the gas (in a
    7·1 answer
  • Mining companies use this reaction to obtain iron from iron ore: Fe2O3(s)+3CO(g) → 2Fe(s)+3CO2(g) The reaction of 177 g of Fe2O3
    10·1 answer
  • What is the best Explanation for why a cell might shrivel
    10·1 answer
  • 2. What is the name of the following compound? *
    14·1 answer
  • The tools shown in the diagram are used for gardening Each tool is made up
    12·1 answer
  • How can you turn mechanical energy into electrical energy
    11·1 answer
  • Negative radical in the periodic table​
    13·1 answer
  • Help before my mom yells at me!!!
    14·2 answers
  • 25 Points! A flashlight uses the chemical energy stored in a battery. This chemical energy is eventually converted into which tw
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!