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inna [77]
3 years ago
7

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

Chemistry
1 answer:
Mnenie [13.5K]3 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.

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You have 1.88 moles of NaOH and an excess of H2SO4. How many grams of H2O will be produced?
KATRIN_1 [288]

Answer:

2 NaOH + H2SO4 2 H2O + Na2SO4

How many grams of sodium sulfate will be formed if you start with 200.0

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200.0 g NaOH 1 mol NaOH 1 mol Na2SO4 142.1 g Na2SO4

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Explanation:

3 0
3 years ago
7.no . <br> with steps please anyone <br> no spam
gulaghasi [49]
  • Given mass=1.3g
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Molar mass=65g/mol

Now

\boxed{\sf No\:of\:moles=\dfrac{Given\:Mass}{Molar\:Mass}}

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6 0
3 years ago
I need help with this please!!
GenaCL600 [577]

Answer:

Option no 3

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6 0
2 years ago
A piece of sodium metal can be described as?
vlada-n [284]

Answer:

A piece of sodium metal can be described as a pure substance and an element. ... Sodium is a soft, waxy, silvery, highly reactive metal. Sodium belongs to group 1 of the periodic table and it is highly abundant in the earth's crust. Sodium can also be found in various minerals such as rock salt, feldspars and sodalite.

Explanation:

here is short description that will help u 2 understand more

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6 0
3 years ago
Read 2 more answers
What number is equal to the amount of protons<br> and neutrons on the periodic table?
DENIUS [597]

Answer:

The mass number

Explanation:

The mass number of an atom is its total number of protons and neutrons.

I hope this helps a bit.

7 0
3 years ago
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