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svlad2 [7]
3 years ago
14

Which element has properties of both metals and nonmetals?

Chemistry
1 answer:
PilotLPTM [1.2K]3 years ago
8 0
<span>Metalloids have the properties of metals and nonmetals.</span>
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How many moles are in 25 grams of HF
sergey [27]
Using this equation, we can take 25/(1.0 + 19) and find that it is equal to 1.25 moles.
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2 years ago
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For the following reaction,
jeka94

Answer:

The answer to your question is:

1.- CO

2.- 0.414 moles of CO2

Explanation:

Data

                               2CO   + O2      ⇒    2CO2

CO = 0.414 moles

O2 = 0.418

 

Process

theoretical ratio   CO/O2 = 2/1 = 1

experimental ratio  CO/O2 = 0.414/0.418 = 0.99

Then the limiting reactant is CO

2.-

                    2 moles of CO ---------------  2 moles of CO2

                    0.414 moles of CO ---------  x

                   x = (0.414 x 2) / 2

                   x = 0.414 moles of CO2

                   

5 0
3 years ago
Which type of energy is associated with the random motion of the particles in a sample of gas?
aliya0001 [1]

Answer:

kinetic energy

Explanation:

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8 0
2 years ago
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If 335 g water at 35.5C loses 5750 J of heat, what is the final temperature of the water?
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Answer:

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Yes, aluminum is flammable
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