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
monitta
3 years ago
10

Please help!!!

Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
8 0
True!! they can be measured without changing chemical identity.
You might be interested in
A particular beer is 65.0% ethanol by volume . If a single bottle of beer contains a total of 750.0 mL of beer, what volume, in
Oksi-84 [34.3K]

The volume in mL of ethanol (C₂H₆O) present in the bottle is 487.5L

HOW TO CALCULATE VOLUME OF ETHANOL:

  • According to this question, a particular beer is 65.0% ethanol by volume. This means that the beer contains 65/100 of ethanol.

  • If a single bottle of beer contains a total of 750.0 mL of beer, the volume of ethanol in the bottle is calculated as follows:

  • = 65/100 × 750

  • = 65 × 7.5

  • = 487.5mL

  • Therefore, volume in mL of ethanol (C₂H₆O) present in the bottle is 487.5L

Learn more at: brainly.com/question/8725232?referrer=searchResults

6 0
3 years ago
Define or explain the following terms. a) Equilibrium constant expression - b) Equilibrium constant - c) Absorbance - d) Beer's
tankabanditka [31]

Explanation:

(a) Equilibrium constant expression is ratio of concentrations of products over reactants each raised to their power of stoichiometric coefficients.

For example consider an equilibrium which is:

aA+bB\rightleftharpoons cC+dD

The expression is:

K_c=\frac {[C]^c[D]^d}{[A]^a[B]^b}

(b) Equilibrium constant of the chemical reaction is value of the reaction quotient of the reaction at the stage of chemical equilibrium which is a state that is approached by the dynamic chemical system at which the composition of the reactant and the product has no measurable tendency towards the change.

(c) Absorbance is the measure of capacity of the substance to absorb the  light of a specific wavelength. Absorbance is equal to the logarithm of reciprocal of transmittance.

(d) The Beer's law relates attenuation of the light to properties of material through which light is travelling.

The expression for the law is:

A = ε × l× c

Where,

A is the absorbance

ε is molar absorptivity coefficient

l is the path length

c is the concentration.

3 0
3 years ago
What type of friction is talking
kotykmax [81]

Answer:

does friction talks ? friction is a oppossing force tho

4 0
3 years ago
How can different forms of energy be classified?
Goryan [66]

There are many forms of energy: like solar, wind, wave and thermal to name a few, but the 6 Forms of Energy we study in Needham are: Sound, Chemical, Radiant, Electric, Atomic and Mechanical. Sound Energy- is produced when an object is made to vibrate. Sound energy travels out as waves in all directions.



3 0
3 years ago
Name the region of the atom where electrons are located.
Alchen [17]

Answer:

The electrons are found on the atomic nucleus.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which line represents a stationary object.
    11·2 answers
  • Table sugar is not a mineral because: it is made of more than one element. it is not made by a geologic process. Its chemical co
    15·1 answer
  • In eukaryotes, the process of cell division is called mitosis true or false quick pls :)
    8·1 answer
  • You have 50 L of CO2 gas at standard temperature and pressure (STP). What would need to be done to the pressure to cut the volum
    11·2 answers
  • A prairie dog eats grass. A coyote eats the prairie dog. This is an example
    11·1 answer
  • What is the symbol for decimeter
    15·2 answers
  • What is the number of moles of kf in a 29-gram sample of the compound.
    10·1 answer
  • An exergonic reaction __________ free energy, and an endergonic reaction __________ free energy.
    13·1 answer
  • The active agent in many hair bleaches is hydrogen peroxide. The amount of H₂O₂ in 14.8 g of hair bleach was determined by titra
    7·1 answer
  • How many grams of ethanol, C₂H,OH, can be boiled with 564.1 kJ of heat energy? The molar heat of vaporization of ethanol is
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!