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3 years ago

Slowly heating butter in a pan until it changes from a solid to a liquid is an example of a physical change. True False

Chemistry

1 answer:

Vedmedyk [2.9K]3 years ago

4 0

Answer: True

Explanation:

Physical change is a change in which there is no rearrangement of atoms and thus no new substance is formed. There is only change in physical state of the substance.

Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.

Slowly heating butter in a pan until it changes from a solid to a liquid is an example of a physical change is true as solid changes to liquid state and there is no breaking or making of chemical bonds.

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The distinctive symbol used to identify radioactive materials is the:

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Tri-blade radiation symbol

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3 years ago

What is an advantage of using natural gas rather than a coal burning power plant?

Olenka [21]

Answer:

I hope it helps u

Explanation:

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3 years ago

What is hetergenous mixture

Ivenika [448]

Answer:

a mixture that is the original

Explanation:

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3 years ago

Read 2 more answers

How many moles of nitrate are dissolved in water if 6.15 mole strontium nitrate dissolve?

pashok25 [27]

The number of moles of nitrate dissolved in water if 6.15 mole of strontium nitrate is : 12.3 moles

<u>Given data :</u>

Moles of strontium nitrate = 6.15 moles

<h3>Ionization of Strontium Nitrate </h3>

When strontium nitrate ( $Sr(NO_{3} )_{2}$ ) is placed in water it will dissociates into its ions because strontium nitrate is an ionic compound.

Next step : Represent the ionization of strontium nitrate

$Sr ( NO_{3} )_{2} (aq) --- > Sr^{2+} (aq) + 2NO_{3} ^{-} (aq)$

From the Stoichiometry of the chemical reaction

I mole of strontium nitrate = 2 moles of Nitrate ions

6.15 mole of strontium nitrate = 2 * 6.15

= 12.3 moles of Nitrate

Hence we can conclude that The number of moles of nitrate dissolved in water if 6.15 mole of strontium nitrate is : 12.3 moles.

Learn more about Stoichiometry of chemical reaction : brainly.com/question/27058367

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3 years ago

Guys help plzz assap

professor190 [17]

False should be your answer

8 0

3 years ago