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
Lana71 [14]
3 years ago
10

Select all of the following properties that are characteristics of true solutions

Chemistry
1 answer:
nataly862011 [7]3 years ago
3 0

Answer:

number 4

Explanation:

You might be interested in
Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 8.00 g of octane is m
DerKrebs [107]

Answer:

11.3 g of H₂O will be produced.

Explanation:

The combustion is:

2C₈H₁₈ +  25O₂→  16CO₂  +  18H₂O

First of all, we determine the moles of the reactants in order to find out the limiting reactant.

8 g / 114g/mol = 0.0701 moles of octane

37g / 32 g/mol = 1.15 moles of oxygen

The limiting reagent is the octane. Let's see it by this rule of three:

25 moles of oxygen react to 2 moles of octane so  

1.15 moles of oxygen will react to ( 1.15 . 2)/ 25 = 0.092 moles of octane.

We do not have enough octane, we need 0.092 moles and we have 0.0701 moles. Now we work with the stoichiometry of the reaction so we make this rule of three:

2 moles of octane produce 18 moles of water

Then 0.0701 moles of octane may produce (0.0701 . 18)/2= 0.631 moles of water.

We convert the moles to mass → 0.631 mol . 18 g/1mol = 11.3 g of H₂O will be produced.

4 0
3 years ago
How many moles are in 1.204 x 10 to the 24th atoms of carbon
Mrrafil [7]
Two moles because one moles would be 6.02×10 23 atoms 2 moles would equal twice that number of atoms
3 0
3 years ago
A particular first-order reaction has a rate constant of 1.35 × 102 s-1 at 25.0°C. What is the magnitude of k at 95.0°C if Ea =
never [62]

Answer:

k ≈ 9,56x10³ s⁻¹

Explanation:

It is possible to solve this question using Arrhenius formula:

ln\frac{k2}{k1} = \frac{-Ea}{R} (\frac{1}{T2} -\frac{1}{T1} )

Where:

k1: 1,35x10² s⁻¹

T1: 25,0°C + 273,15 = 298,15K

Ea = 55,5 kJ/mol

R = 8,314472x10⁻³ kJ/molK

k2 : ???

T2: 95,0°C+ 273,15K = 368,15K

Solving:

ln\frac{k2}{k1} = 4,257

\frac{k2}{k1} = 70,593

{k2} = 9,53x10^3 s^{-1}

<em>k ≈ 9,56x10³ s⁻¹</em>

I hope it helps!

5 0
3 years ago
Help please #7 and #8
ira [324]
7 A lead
B Gold
Csilver

8 Afeathrr
B water
C silver
6 0
3 years ago
What is a potential risk of genetically modified food?
Ivahew [28]

It would be D since it could be unhealthy for you.

6 0
3 years ago
Read 2 more answers
Other questions:
  • A 4 gram metal object displaces 2 mL of water in a graduated cylinder. What is the density of the metal object?
    13·1 answer
  • What is the color would phenolphthalein be if placed in water
    10·1 answer
  • PLEASE HELPPPP How would life on earth be different if it axis were not tilted which respect to its orbit
    9·2 answers
  • Did scallops live before or after dinosaurs according to a fossil record
    9·2 answers
  • How much heat, in kJ, is required to melt 54.0 g of ice at 0°C into water at 0°C if Hfus for water = 6.01?
    5·2 answers
  • Sodium chloride (table salt,) whose formula is NaCl: <br> Ionic <br> Covalent
    12·2 answers
  • A(n) _______________ holds municipal solid waste, construction debris, and some types of agricultural and industrial waste.
    6·1 answer
  • In the titration of a solution of Sodium hydroxide, an acid titrant was prepared by diluting 125.0 mL of 10.00 mol/L Nitric acid
    11·1 answer
  • Review Toples
    6·1 answer
  • A robotics scientist is trying to create a baseball pitching machine that will throw balls at different speeds and in exactly th
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!