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
enot [183]
1 year ago
12

7. A bottle found on a shelf contains either ethanol (density 0.789g/mL) or antifreeze (ethylene

Chemistry
1 answer:
loris [4]1 year ago
3 0

The substance is ethylene glycol.

<h3>What is density?</h3>

The term density is the ratio of mass to volume. We have two substances here which are ethanol and ethylene glycol. We have the mass of the solution as shown in the image in question 7 in the attachment to the question.

Mass of the solution = 381 - 250 = 131 g

Volume of the solution = 4 fl oz

1mL= 0.0338 fl

x = 4 fl oz

x =4 fl oz*  1mL/0.0338 fl oz

x = 118.34 mL

Density = mass/volume =  131 g/118.34 mL = 1.11 g/mL

The substance is ethylene glycol.

Learn more about density:brainly.com/question/15164682

#SPJ1

You might be interested in
Scientific knowledge results from the interaction of scientists who are investigating natural phenomena. Which of these BEST des
seraphim [82]

Answer:

5ywhxhghghghfhffgffgffg

Explanation:

6 0
3 years ago
Ito Ang naimbento ni graham bell na nagpabilis sa pakikupagtalastasan​
Feliz [49]

Answer:

ФОТОГРОФИРУЙ

ИЛИ НАПИШИ

В КОМЕНТЫ

7 0
3 years ago
Write the equilibrium expression for N2 (g) + 3 H2 (g) ↔ 2 NH3 (g) + heat I have no idea where to even start, due to the corona
motikmotik

Answer:

The expression of an equilibrium constant will given as:

K_c=\frac{[NH_3]^2}{[N_2][H_2]^3}

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_{eq}

K is the constant of a certain reaction when it is in equilibrium

N_2 (g) + 3 H_2 (g)\rightleftharpoons 2 NH_3 (g) + heat

The expression of an equilibrium constant will given as:

K_c=\frac{[NH_3]^2}{[N_2][H_2]^3}

5 0
3 years ago
Water is placed in a graduated cylinder and the volume is recorded as 43.5 mL. A homogeneous sample of metal pellets with a mass
Ipatiy [6.2K]

Answer:

1.8g

Explanation:

Initial volume = 43.5ml

Final volume = 49.4ml

Mass = 10.88g

Density = ?

Volume = Final volume - initial volume

= 49.4 - 43.5

= 5.9ml

Density = Mass/volume

Density = 10.88/5.9

= 1.8g/ml

4 0
3 years ago
1. This balanced equation represents a chemical reaction.
Dafna1 [17]

Answer:

combustion is the answer

5 0
3 years ago
Other questions:
  • How is chemistry relevant outside the chemistry lab
    6·1 answer
  • Tungsten is used in light bulbs because its high...
    13·2 answers
  • What is the correct order of steps to determine the mass of product created, given a certain mass of reactant?
    9·1 answer
  • Which energy transformation occurs when an
    11·1 answer
  • The _______ is a factor that's affected by changes in the independent variable.
    7·1 answer
  • How does the average reaction rate differ from an instantaneous reaction rate?
    6·1 answer
  • Many mountains on Earth have been formed by the eruption of __________.
    5·2 answers
  • Consider a solution containing 0.100 M fluoride ions and 0.126 M hydrogen fluoride. The concentration of fluoride ions after the
    15·1 answer
  • 4. How Does Extreme conditions<br> accelerate erosion ?
    9·1 answer
  • What are three things that the elements Magnesium, Calcium and Barium have in common?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!