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Ksju [112]
3 years ago
13

What are some physical properties that could have helped to identify a mystery powder?

Chemistry
1 answer:
Rus_ich [418]3 years ago
6 0

i dont really know i will find some more information on that in about 5 minutes

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2 years ago
Identify the reactants and the products of the preparation step to the urea cycle.
Salsk061 [2.6K]

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2 years ago
Which of the following is an example of chemical energy being released or stored?
Monica [59]

Answer:

C

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2 years ago
A sample of gas (1.9 mol) is in a flask at 21 °c and 697 mm hg. the flask is opened and more gas is added to the flask. the new
garik1379 [7]

To solve this problem, we assume ideal gas so that we can use the formula:

PV = nRT

since the volume of the flask is constant and R is universal gas constant, so we can say:

n1 T1 / P1 = n2 T2 / P2

 

1.9 mol * (21 + 273 K) / 697 mm Hg = n2 * (26 + 273 K) / 841 mm Hg

<span>n2 = 2.25 moles</span>

8 0
3 years ago
What is the principle feature of a metallic bond?
Kobotan [32]
Electrons are free to move throughout metal substance, shared throughout so electricity and heat are conducted well
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3 years ago
Read 2 more answers
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