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stich3 [128]
4 years ago
14

Open vs. closed systems

Chemistry
1 answer:
dalvyx [7]4 years ago
7 0
Open systems are when matter and energy can freely move in and around the system. Closed Systems is when energy can freely move back and forth between the system but matter can not.
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Which of the following pairs of elements could react to form an ionic compound? Check all that apply.
KIM [24]

Following are the pair of elements that result in an ionic compound

  • Ca and Cl,
  • S and K,

Option A and B

<u>Explanation:</u>

  • Ionic compounds are defined as the compound that consists of ions held by two atoms of differently charged ions.
  • These compounds have a positive charge of ions called cations and a negatively charged element is anions.
  • In the above options, we shall say that the atoms such as Ca and K both result in cations as they release an electron to become a positive ion.
  • Also, Cl and S both result in anions as they attract more electron to form negative ions.
  • These positive and negative ion together results in an ionic compound.
8 0
3 years ago
Structure of 2,6-diiodo-4-methyl-5-propylheptane​
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Explanation:

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5 0
3 years ago
Type of bond between na+1 ion and Cl-1 ion is ion
makvit [3.9K]

A neutral sodium atom, for example, contains 11 protons and 11 electrons. By removing an electron from this atom we get a positively charged Na+ ion that has a net charge of +1. Atoms that gain extra electrons become negatively charged. A neutral chlorine atom, for example, contains 17 protons and 17 electrons.

6 0
3 years ago
Compare the charges and masses of protons neutrons and electrons
antiseptic1488 [7]
Charges is then there is a negative sign at the right corner of an element it means you have to add, and when it is positive, it means you have to substract

8 0
3 years ago
Base your answer on the information below and on your knowledge of chemistry.Nitrogen dioxide, NO₂, is a dark brown gas that is
vfiekz [6]

Answer:

There are two possible answers to the question

I) decreasing the pressure of the system

II) decreasing the temperature of the system

Explanation:

Looking at the equation of the reaction, it can be seen that the reaction is endothermic. This implies that decreasing the temperature favours the reverse reaction and more NO2 is produced.

Secondly, decreasing the pressure drives the equilibrium position towards the side having the higher total volume hence decreasing the pressure favours the reverse reaction and more NO2 is produced.

8 0
4 years ago
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