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
katrin2010 [14]
3 years ago
15

Which statement correctly describes a chemical equilibrium? it must take place in an open system the mass of the reactants and t

he mass of the products are no equal it is affected by the addition of a catalyst it does not involve a reversible reaction the concentrations of reactants and products are equal
Chemistry
2 answers:
prohojiy [21]3 years ago
8 0

Answer is C for PLATO users.

Svetllana [295]3 years ago
6 0
In your choices, the best answer is the mass of the reactants and the mass of the products are no equal. The chemical equilibrium can take place in a close system and can not be affected by catalyst and is a reversible reaction. The best describe should be the concentration of reactants and products are constant.
You might be interested in
NASA communicates with the Space Shuttle and International Space Station using Ku-band microwave radio. Suppose NASA transmits a
Tanya [424]

Answer:

A = 0.023 m

Explanation:

The relation between the frequency of a radiation and its wavelength is given by the following expression.

where,

c is the speed of light (it has a constant value of 3.00 x 108 m/s)

A is the wavelength of the radiation v is the frequency of the radiation

In this case, the frequency is 13 GHz = 13 x

10° Hz = 13 x 1o° s-

The wavelength associated with this frequency is:

A = c/v = (3.00 x 10° m/s)/(13 x 10° s-") = 0.023

8 0
3 years ago
Chemical reactions that release energy are called Question 1 options:
kolbaska11 [484]

Answer:

Exothermic Reactions.

Explanation:

Reactions that release energy are called exothermic reactions.

Whereas that absorb energy are called Endothermic reactions.

More energy is being released to the surroundings than was absorbed to initiate and maintain the reaction in case of exothermic reactions.

Burning of a candle is an exothermic reaction.

4 0
3 years ago
Read 2 more answers
In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions)
gregori [183]

Answer:

The correct answer will be " RbF > RbCl > RbBr > Rbl".

Explanation:

The size of the given ions will be:

<u>RbCl:</u>

⇒  689kJ/mol

<u>RbBr:</u>

⇒  660kJ/mol

<u>Rbl:</u>

⇒  630kJ/mol

<u>RbF:</u>

⇒  785kJ/mol

Now according to the size, the arrangement will be:

⇒  (785kJ/mol) > (689kJ/mol) > (660kJ/mol) >(630kJ/mol)

⇒  RbF > RbCl > RbBr > Rbl

The bond among all opposite charging ions seems to be strongest whenever the ions were indeed small.

6 0
3 years ago
If you drop soap on the floor is the soap dirty or is the floor clean?
tia_tia [17]

Answer:

hahahaha the soappp is dirty and the floor gets clean

6 0
3 years ago
What is the density of this problem
Luda [366]

Answer:

Density of copper = 8.9 g/cm³

The density of liquid mercury is 13.6 g/cm³ which means mercury is denser than copper so copper will float on liquid mercury.

Explanation:

Given data:

weight of copper metal = 1896 g

Dimensions of block = 8.4 cm, 5.5 cm, 4.6 cm

Density of copper = ?

Will it float to the liquid mercury = ?

Solution:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

volume of coper metal =  8.4 cm × 5.5 cm × 4.6 cm

volume of coper metal =212.52 cm³

d = 1896 g/ 212.52 cm³

d = 8.9 g/cm³

The density of liquid mercury is 13.6 g/cm³ which means mercury is denser than copper so copper will float on liquid mercury.

4 0
3 years ago
Other questions:
  • An atom has 16 protons and 16 neutrons. Which of the following could be the symbol for that atom, including its mass numbe? Cons
    13·2 answers
  • When sodium metal is added to water, the following reaction occurs:
    8·1 answer
  • What is vocational training ​
    9·1 answer
  • Select all of the following statements that represent the differences between a voltaic cell and an electrolytic cell. Group of
    12·1 answer
  • A rocket will rotate about a single point called the _?
    12·2 answers
  • Destiny was looking at different stars in the night sky with her telescope and noticed that
    13·1 answer
  • If the density of a certain oil is 0.8gcm3. What is the mass of 10 cm3 sample of this oil?
    7·1 answer
  • 3HCl(aq) + Al(OH)3(aq) = AIC13(aq) + 3H2O(1)
    7·1 answer
  • Giving brainliest and thanks to best answer &lt;333 :&gt;
    12·2 answers
  • I've a project about (air pollution), I want a questions about the topic, can anyone help me pls?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!