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sleet_krkn [62]
3 years ago
14

Which of these terms best describes the following statement?

Chemistry
1 answer:
Xelga [282]3 years ago
5 0
Which of these terms best describes the following statement?"A solution of the unknown compound turned litmus paper blue" 
A. Hypothesis 
B. Model
C. Quantitative observations 
D. Qualitative observation- is the answer
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TRUE FALSE? The MOLE is a unit in Chemistry that serves as a bridge between the ATOMIC and MACROSCOPIC worlds?​
Vanyuwa [196]

Answer:

True

Explanation:

A mole is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

7 0
3 years ago
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How many atoms of both elements are there in this molecule: 3N205; O 3 Nitrogen and 15 Oxygen 6 Nitrogen and 5 Oxygen KD 2 Nitro
abruzzese [7]

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Explanation:

oxygen is a 15 and nitrogen science chemistry i'm guessing

6 0
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As a hydrated compound is heated, it decreases in
Sergio [31]
A hydrated substance will decrease in mass when heated since the water is being boiled away.  

I hope this helps.  Let me know if anything is unclear.
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4 years ago
Which of the following is the best thermal conductor?<br><br> metal<br> wood<br> paper<br> air
Ganezh [65]

Answer:

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3 years ago
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If you start with 0.020 g of Mg, how many moles of H2 will you make if the reaction is complete?
irina [24]

If one starts with 0.020 g of Mg, 0.0008 moles of H2 would be made if the reaction is complete.

Going by the balanced equation of reaction in the image, 1 mole of Mg will produce 1 mole of H2 in a complete reaction.

If 0.020 g of Mg is started with:

mole of Mg = mass/molar mass

                        = 0.020/24.3

                            = 0.0008 moles

Since the mole of Mg to H2 is 1:1, thus, 0.0008 moles of H2 will also be made from the reaction.

More on stoichiometry can be found here: brainly.com/question/9743981

6 0
3 years ago
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