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
Scilla [17]
3 years ago
15

Identify the SL unit you would use to measure the width of your classroom.

Chemistry
1 answer:
Tatiana [17]3 years ago
8 0
Measure it in meters (m)
You might be interested in
The amount of heat energy needed to heat 200 g of water from 15 °C to its boiling point, and boil it, is
Svetllana [295]

can you explain it further

4 0
2 years ago
Consider the following chemical reaction: 2KCl + 3O2 --> 2KClO3. If you are given 100.0 moles of KCl and 100.0 moles of O2...
g100num [7]

Answer:

O₂; KCl; 33.3  

Explanation:

We are given the moles of two reactants, so this is a limiting reactant problem.

We know that we will need moles, so, lets assemble all the data in one place.

            2KCl  +  3O₂ ⟶ 2KClO₃

n/mol:  100.0   100.0

1. Identify the limiting reactant

(a) Calculate the moles of KClO₃ that can be formed from each reactant

(i)From KCl

\text{Moles of KClO}_{3} = \text{100.0 mol KCl} \times \dfrac{\text{2 mol KClO}_{3}}{\text{2 mol KCl}} = \text{100.0 mol KClO}_{3}

(ii) From O₂

\text{Moles of KClO}_{3} = \text{100.0 mol O}_{2} \times \dfrac{\text{2 mol KClO}_{3}}{\text{3 mol O}_{2}} = \text{66.67 mol KClO}_{3}

O₂ is the limiting reactant, because it forms fewer moles of the KClO₃.

KClO₃ is the excess reactant.

2. Moles of KCl left over

(a) Moles of KCl used

\text{Moles used} = \text{100.0 mol O}_{2} \times \dfrac{\text{2 mol KCl}}{\text{3 mol O}_{2}} = \text{66.67 mol KCl}

(b) Moles of KCl left over

n = 100.0 mol - 66.67 mol = 33.3 mol

3 0
3 years ago
For each scenario, determine if the electron has absorbed energy or emitted energy,
k0ka [10]

Answer:

1) emitted energy

2)absorbed energy

3)absorbed energy

4)emitted energy

Explanation:

I just got it right

7 0
2 years ago
Read 2 more answers
Why is the mass of an iron atom different from the mass of a copper atom?
Jobisdone [24]
They have different number of Neutrons and protons, so their masses are different

Hope this helps!
6 0
3 years ago
Why amorphous solids are called super cooled liquids?
qwelly [4]
Because this classification contrasts with that of crystalline solids whose atoms are arranged in a regular and orderly fashion forming crystalline networks.
3 0
3 years ago
Other questions:
  • Many free radicals combine to form molecules that do not contain any unpaired electrons. The driving force for the radical–radic
    10·1 answer
  • H3PO4 +CaCOH)2=Ca3(PO4)2+H20<br> The equation balance
    7·1 answer
  • A droplet of pure mercury has a density of 13.6 g/cm3. What is the density of a sample of pure mercury that is 10 times as large
    14·1 answer
  • What is the first step in the scientific method? A. form a hypothesis B. illustrate the process C. observe and ask questions D.
    13·2 answers
  • Solid NaCl is added slowly to a solution containing 0.10M AgNO3 and 0.20M Pb(NO3)2. Ksp AgCl = 1.8 E-10 Ksp PbCl2 = 1.6 E-5 Writ
    9·1 answer
  • 1. How many molecules are in 2.40 moles of H2O?
    6·1 answer
  • 1.what happens when vinegar and baking soda are passed through lime water?
    15·1 answer
  • In one compound of lead and sulfur, there are 6.46 g of lead
    13·1 answer
  • A gas-filled balloon with a volume of 2.90 L at 1.20 atm and 20°C is allowed to rise to the stratosphere (about 30 km above the
    10·2 answers
  • The vapor pressure of liquid chloroform, CHCl3, is 100. mm Hg at 283 K. A 0.380 g sample of liquid CHCl3 is placed in a closed,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!