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2 years ago

6

Which of the following describes a chemical property of metal A,reacts with acid B, conducts electricity C,attracted to a magnet

D, high melting point

2 answers:

gogolik [260]2 years ago

6 0

Answer:

I belive its the acid anwser because it can make rust which is a chemical change

Explanation:

sukhopar [10]2 years ago

6 0

Answer:

Acid

Explanation:

I did an experiment with acid

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Licemer1 [7]

Answer:

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2 years ago

Can sulphur pentrate glass

Law Incorporation [45]

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3 years ago

Infrared (IR) spectroscopy is used to identify functional groups within a molecule. Click on the peak that corresponds to the st

Sergio [31]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The correct place to click on any of the double peak showing between 2500 and 3000 $cm^{-1}$ on the uploaded question

Explanation:

The group which is being highlighted is an Aldehyde functional group denoted by this structure ( $=C-H$ )

This groups stretch on the infrared spectrometer gives two medium intensities peaks

Its stretch comes at 2820 - 2850 $cm^{-1}$ peak 1

and at 2720 - 2750 $cm^{-1}$ peak 2

So the correct click would be on any of the two peaks between 2500 - 3000 $cm^{-1}$ region

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2 years ago

Which animal resembles their parents already after being born or hatched?

nikitadnepr [17]

I think maybe reptiles bu i could be wrong. :)

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2 years ago

Some one help me please I'm stuck Show using two conversion factors how you would convert from 0.020 kg into mg.

julia-pushkina [17]

Answer:

$=2.0x10^4mg$

Explanation:

Hello there!

In this case, when performing units conversions involving two proportional factors we need to make sure we first convert to the base unit and then to the target one; thus, since 1 kg = 1000 g and 1 g = 1000 mg, we set up the following expression:

$=0.020kg*\frac{1000g}{1kg} *\frac{1000mg}{1g} \\\\=2.0x10^4mg$

Best regards!

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2 years ago