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Ronch [10]
2 years ago
12

Provide a definition of a closed system.

Chemistry
2 answers:
Salsk061 [2.6K]2 years ago
8 0

Answer:

No idea

Explanation:

I don't know the answer. You're welcome!

tensa zangetsu [6.8K]2 years ago
5 0

Answer:

A closed system is a physical system that does not allow transfer of matter in or out of the system, though, in different contexts, such as physics, chemistry or engineering, the transfer of energy is or is not allowed.

Explanation:

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Decreasing the temperature of a reaction decreases the reaction rate because
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The answer u are looking for is b
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Why do oxygen and hydrogen connect (attach) underwater? ​
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The slight positive charges on the hydrogen atoms in water molecules attract the slight negative charges on the oxygen atoms of the other water molecules
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3 years ago
The atomic number tells us how many __ or __ an element contains.
CaHeK987 [17]
Answer:-
Electrons or Protons

Explanation:-
Atomic number (Z) is defined as:
>>“The total number of protons in the nucleus of an atom is called atomic number”. All atoms of an element have the same number of protons and electrons.
>>“The total number of protons in the nucleus or electrons revolving around the nucleus of an atom”.
Example:
For instance, Hydrogen has the Atomic number(Z) 1.
Helium has the atomic number 2.
Oxygen has the atomic number 8.
| Note | Atomic number is represented by “Z”. And some ppl don’t consider the 2nd definition it’s upto u to do both or the standard one.

5 0
3 years ago
What is the formula of the compound formed between the potassium ion and the sulfide ion?
KIM [24]
The formula for K+ and S-2 is K2S because you need 2 potassium ions to balance out the sulfide ion
4 0
3 years ago
A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy and cannot be separated into oil and wa
nataly862011 [7]

Colloid

Explanation:

A lotion of this type is a typical colloid mixture.

  • A colloid is a homogeneous mixtures of two phases.
  • The dispersed phase and the dispersion medium.
  • Water is the dispersion medium and oil is the dispersed phase.

They have the following properties:

  • Liquid dispersed phase and liquid dispersion medium forms an emulsion and a lotion of this type is an example.
  • The particles are larger than those found in solutions.
  • The particles pass through ordinary filter paper.
  • They may be cloudy or clear .

learn more:

Heterogeneous mixtures brainly.com/question/1446244

#learnwithBrainly

4 0
3 years ago
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