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
inna [77]
2 years ago
7

Describe the three types of system: a.open: b.closed: c. Isolated:

Chemistry
1 answer:
Mnenie [13.5K]2 years ago
4 0

An open system is when there is a transfer of energy and matter with its surroundings.

A closed system is where there is a transfer of energy, may it be heat or work, but not matter with its surroundings.

An isolated system is where there is no transfer of energy or matter with its surroundings.

You might be interested in
How many valance electrons does He need to get to 8
mote1985 [20]

Answer:

Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons

5 0
3 years ago
Sam places 5 g of baking soda in 5 g of liquid vinegar, and notices fizzing. After all the fizzing stops, 5 g of liquid remains.
anygoal [31]
Answer: G

5+5=10

10-5=5

5 g of gas escaped
3 0
2 years ago
Read 2 more answers
Predict whether each of the following molecules is polar or nonpolar? 1. XeF4 3. CCl4 5. CH3Br
denpristay [2]
The answer the following are as follows:

<span> 1. XeF4 - molecules are polar

3. CCl4 -  molecules are polar

5. CH3Br - molecules are non-polar

 I hope my answer has come to your help. God bless and have a nice day ahead!</span>
5 0
3 years ago
Use the equation n2 + 3h2=2nh3 if 8.0g N2 react, how many grams of NH3 will be produced
Eduardwww [97]

the balanced equation for the formation of ammonia is

N₂ + 3H₂ ---> 2NH₃

molar ratio of N₂ to NH₃ is 1:2

mass of N₂ reacted is 8.0 g

therefore number of N₂ moles reacted is - 8.0 g / 28 g/mol = 0.286 mol

according to the molar ratio,

1 mol of N₂ will react to give 2 mol of NH₃, assuming nitrogen is the limiting reactant

therefore 0.286 mol of N₂ should give - 2 x 0.286 mol = 0.572 mol of NH₃

therefore mass of NH₃ formed is - 0.572 mol x 17 g/mol = 9.72 g

a mass of 9.72 mol of NH₃ is formed

6 0
3 years ago
Humans have used rocks in the creation of tools and building materials true or flase
Anuta_ua [19.1K]
True, if you would like an example look at Indian arrow heads or early architecture all use rocks.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A 19.3-g mixture of oxygen and argon is found to occupy a volume of 16.2 l when measured at 675.9 mmhg and 43.4oc. what is the p
    6·1 answer
  • The energy from 0.015 moles of octane was used to heat 250 grams of water. The temperature of the water rose from 293.0 K to 371
    10·1 answer
  • Consider the n = 3 energy level in a hydrogen atom. how many electrons can be placed in this level?
    5·2 answers
  • if your hot pack requires 3.0g of a solid to obtain the correct temperature change, instead of the correct amount (1.4g) calcula
    6·1 answer
  • Describe how you would use the information depicted in the potential energy diagram below to determine the enthalphy change of t
    10·1 answer
  • Which phrase best describes weathering?
    9·1 answer
  • What happens to the rate constant as activation energy increases?
    5·2 answers
  • Is an element with 6 elecrons, 6 protons and 6 neutroms an atom, ion or isotope​
    9·2 answers
  • What are ionic compounds. Explain.<br>Explain what is gravity.​
    8·2 answers
  • Which electron is, on average, close to the nucleus: an electron in a 2s orbital or an electron in a 3s orbital?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!