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
alukav5142 [94]
3 years ago
14

Which of the following is the definition of an open physical system? A. a system that can be affected by the outside environment

, by an exchange of
matter or energy
B. a system isolated from the outside environment, which cannot exchange matter
or energy with the system
C. an insulated drink container
D. an artificial representation of a real system or process, designed to help
understand the structure or behavior of the actual system or process for SCIENCE not chemistry
Chemistry
1 answer:
sergey [27]3 years ago
5 0

Answer:

A. a system that can be affected by the outside environment, by an exchange of matter or energy

You might be interested in
The environment needs to what for natural selection to occur
allsm [11]

Answer:

i know 3, reproduction, organisms, and variations in traits

Explanation:

5 0
2 years ago
Read 2 more answers
How many particles are in 2.0 moles of CH4
Whitepunk [10]

Answer: There are 4.8 x 1024 hydrogen atoms in 2.0 moles of CH4

6 0
2 years ago
Read 2 more answers
Why do reactivity increases on moving from top to bottom in group 2 of modern periodic table?
Nikolay [14]

Answer:

that's because....

group 1 (e.g Na, K) those tend to lose one electron to gain noble gas electron configuration.

they can achieve that by just losing one electron from their outer shell.

as you go down the group 1, element gets bigger in size, which means there is more space between nucleus (which is in center of atom) and electron of outer shell. the more far away they are the less attraction force between them.

so its easier for potassuim to lose one electron than for lithuim.

so that means potassium will easily give up 1 electron to react with non metal or other element therefore it is more reactive than lithuim

but in case of non metal, the opposite happens but simple to understand.

as you go down the group 7 (halogen- Cl, Br, I) element will get bigger therefore force between nucleus and outer electron is getting smaller. they have to gain 1 electron in order to fill the outer shell (to gain noble gas electron configuration.)

as florine is more smaller in size than clorine it is more reactive because florine has more tendency to pull extra electron from metal or other element towards its side. so it easily gain 1 electron to react.

3 0
3 years ago
S(s)+3F2(g)->SF6(g) how many mol of F2 are required to react completely with 2.30 mol of S?
Brilliant_brown [7]

Answer:  There are 6.9 mol of F_{2} are required to react completely with 2.30 mol of S.

Explanation:

The given reaction equation is as follows.

S(s) + 3F_{2}(g) \rightarrow SF_{6}(g)

Here, 1 mole of S is reaction with 3 moles of F_{2} which means 1 mole of S requires 3 moles of F_{2}.

Therefore, moles of F_{2} required to react completely with 2.30 moles S are calculated as follows.

1 mol S = 3 mol F_{2}\\2.30 mol S = 3 mol F_{2} \times 2.30 \\= 6.9 mol F_{2}

Thus, we can conclude that there are 6.9 mol of F_{2} are required to react completely with 2.30 mol of S.

3 0
3 years ago
11 The cross section compares the densities of different Earth layers. Which Earth layer is most dense?
Naily [24]

Answer:

b

Explanation:

i took the quiz

8 0
2 years ago
Other questions:
  • Amy performed an experiment in lab. She improperly mixed the chemicals, and an explosion of light, sound, and heat occurred. Whe
    15·2 answers
  • A sheet of aluminum foil has a total area of 1.000 m2 and a mass of 3.636 g. What is the thickness of the sheet in millimeters?
    10·1 answer
  • using the soubility curve what is the solubilityof nh4cl in 10 mL of water at a temperature of 60 degrees Celsius​
    7·1 answer
  • Question number 10 & 11, answer please and thank you
    7·1 answer
  • What must occur for a change to be a chemical reaction?
    6·1 answer
  • Why is the "coming up" list on the dashboard useful?​
    9·1 answer
  • What word is used to refer to a group of organ systems working together?
    13·1 answer
  • Can somebody help me with this also plz
    10·1 answer
  • What do the noble gases have in common with the halogens? Both noble gases and halogens are
    8·1 answer
  • This type of chemist understands the structure of living systems and, in turn, their
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!