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
Lubov Fominskaja [6]
2 years ago
7

A student walks 2km in 30 minutes. What is the student's average speed in km/h

Chemistry
1 answer:
crimeas [40]2 years ago
4 0

Answer:

4km per hour

Explanation:

You might be interested in
Natural gas and petroleum are mostly alkanes t/f
dolphi86 [110]
Been a year since i was in chem but my money is on true
5 0
3 years ago
Read 2 more answers
3. (10 Points) You buy a helium balloon of 14 Liters for your friend's birthday and
vesna_86 [32]

Answer: picture shows work for # 1,2,4,5,7

Explanation:

number 3: as the pressure in the volume decreases, the volume increases causing it to expand and eventually blow.

number 6: because the temperature and the amount of gas don’t change, these terms don’t appear in the equation. What Boyle’s law means is that the volume of a mass of gas is inversely proportional to its pressure. This linear relationship between pressure and volume means doubling the volume of a given mass of gas decreases its pressure by half.

hope this helps :))

7 0
3 years ago
A mixture of reactants and products for the reaction shown below is at
zavuch27 [327]

If the volume of the container were increased to 4.0 L, more N₂ and H₂ would be produced (Option D)

<h3>What is chemical equilibrium? </h3>

This is simply defined as a state in a chemical system where there is no observable change in the properties of the system with time.

<h3>Principle of chemical equilibrium </h3>

A French scientist postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states as follow:

If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

<h3>How to determine what will happen if the volume of the container is increased from 2 L to 4 L</h3>

From the principle given above, we can see that volume does not affect equilirium position.

However, from Boyle's law, we understood that pressure and volume are in invest relationship.

Thus, increasing volume simply means decreasing pressure.

A decrease in pressure will favors the side where there is an increase in volume.

Let us consider the equation from the question:

N₂(g) + 3H₂(g) <=> 2NH₃(g)

  • Volume of reactants = 1 + 3 = 4 L
  • Volume of products = 2 L

Thus, we can conclude that increasing the volume (i.e decreasing the pressure) of the reaction will favors the backward reaction, hence, more N₂ and H₂ would be produced.

Learn more about chemical equilibrium:

brainly.com/question/4289021

#SPJ1

5 0
2 years ago
I will give Brainliest!!! What kind of atoms makeup C12H22O11?
Goshia [24]

Answer:

carbon, hydrogen, and oxygen atoms

Explanation:

brainliest pls

7 0
2 years ago
Read 2 more answers
What are the parts of the earths mantle? A) Inner core, asthensophere, lithosphere
In-s [12.5K]

Answer:

B

Explanation:

The mantle is composed of the mesosphere and the asthenosphere in the upper most part and in the crust is the lithosphere

5 0
3 years ago
Other questions:
  • A ball slowing down as it rolls across a carpet is an example of what
    7·2 answers
  • #1: Which scientist is credited with developing the orbital model of the atom?
    8·1 answer
  • Why do historians analyze historical events and cause and effect relationship
    12·2 answers
  • What is the mass, in grams, of one mole of any substance known as?
    14·1 answer
  • Is carbon monoxide or oxygen more ideal gas
    7·2 answers
  • What is the one variable that is changed in the experimental group called? the placebo the independent variable the control grou
    8·1 answer
  • Explain, in terms of ions, why the ability to conduct an electric current is greater for the
    11·1 answer
  • Maria said that you can<br> blu always separate a<br> mixture by filtration.<br> Is she correct?
    9·2 answers
  • CH4 is more stable than SiH4​
    8·1 answer
  • 1. Prepare a solution of impure NaHCO, by weighing 1 Og of the impure salt into a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!