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docker41 [41]
3 years ago
15

What is a isotope ?

Chemistry
2 answers:
leonid [27]3 years ago
5 0

Answer: each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons

Explanation:

cricket20 [7]3 years ago
3 0
An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutron s, in addition to the number of protons that uniquely defines the element.
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6. Calculate the molarity if 35.0 grams of KBr are dissolved in 700. ml?
olga55 [171]

Answer:

To calculate molarity, divide the number of moles of solute by the volume of the solution in liters. If you don't know the number of moles of solute but you know the mass, start by finding the molar mass of the solute, which is equal to all of the molar masses of each element in the solution added together.

Explanation:

try starting with 35.0 and dived it by the volume

8 0
3 years ago
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In the following reaction, how many liters of o2 will produce 43.62 liters of co2 at stp? c3h8 5 o2 3 co2 4 h2o
antoniya [11.8K]
The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

<span>43.62 L CO2 ( 1 mol CO2 / 22.4 L CO2 ) (5 mol O2 / 3 mol CO2 ) ( 22.4 L O2 / 1 mol O2) = 72.7 L O2</span>



4 0
3 years ago
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What does M stand for
liq [111]

Answer:Molarity

Explanation:M stand for molarity

6 0
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How do I revise for a science test due tomorrow? I haven’t revised but I have to get a good score. Anyone please help!
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7 0
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What element’s valence electrons are located in 5s25p4?
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