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beks73 [17]
3 years ago
8

Please I really need help with this

Chemistry
2 answers:
sesenic [268]3 years ago
5 0

Answer:

B. It is used to open and close the circuit.

Ksju [112]3 years ago
3 0

Answer:

B. it is used to open and close the circuit

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A sample of gas A has a molar mass of 4 grams while a sample of gas B has a molar mass of 16 grams. Which statement holds true?
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I believe the closest possible answer to this question are:Gas A effuses faster than gas B.The molar mass is directly proportional to the rate of effusion.Thank you for your question. Please don't hesitate to ask in Brainly your queries
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4 years ago
Read 2 more answers
The molar concentration of sucrose in a can of soda is 0.375 M. How much sucrose would be found in a 2 liter bottle of soda of t
antoniya [11.8K]

Answer:

C)  0.75 mol.

Explanation:

  • Molarity is defined as the no. of moles of solute dissolved in 1.0 L of the solution.

So, The molar concentration of sucrose in a can of soda is 0.375 M means that: every 1.0 L of sucrose contains 0.375 mol of sucrose.

∴ 2 liter bottle of soda of the same concentration contains (2 * 0.375 mol = 0.75 mol) of sucrose.

<em>Thus, the right choice is: C)  0.75 mol.</em>

5 0
3 years ago
Which of the following is a mixture?<br><br> alcohol<br><br> water<br><br> mercury<br><br> ink
kirza4 [7]
In response to the question saying that mixing the ink
5 0
3 years ago
ONE MINUTE PLSSSS!!! WILL GIVE BRAINLIEST
gizmo_the_mogwai [7]

Answer:

B

Explanation:

The component carbon (C) has an nuclear number of 6, which suggests that all impartial carbon particles contain 6 protons and 6 electrons. In a commonplace test of carbon-containing fabric, 98.89% of the carbon particles too contain 6 neutrons, so each encompasses a mass number of 12.

Hope that helps  

have a good day

Can i have brain too pls!!!

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