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3 years ago

A stick of butter is melted in a saucepan. As it continues to cook, the butter turns brown. What changes have occurred?

Chemistry

2 answers:

zlopas [31]3 years ago

6 0

Answer:

Assuming that the butter is already a liquid, it is a chemical change in which the milk solids of the butter oxidize.

Explanation:

I hope this helps :)

adelina 88 [10]3 years ago

3 0

Physical change! I believe

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Electron configurations are a shorthand form of an orbital diagram, describing which orbitals are occupied for a given element.

kipiarov [429]

Answer:

[Ar] 3d10 4s2 4p3 is shorthand, 1s22s22p63s23p63d104s24p3 long hang

Explanation:

The shorthand is made using the lowest & closest noble gas, and picking up where it leaves off as follows, and longhand is made from a followed pattern you can easily find

3 0

3 years ago

Read 2 more answers

The label shown above contains information about some harmful effects of acetone.A group of students plans to use acetone to rin

Fed [463]

Answer:

Heating water with an open flame

Explanation:

Remember, we are told in the label that Acetone is a "flammable liquid and vapor." Being flammable means the substance can easily be set on fire, and we would expect an open flame from heating water to trigger an explosion (a disaster) in which the Acetone is set on fire causing life-threatening dangers to the second group of students.

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3 years ago

Fire a single electron towards the hydrogen atom. Describe what happens in a step by step fashion. [N.B. - It may be helpful to

scZoUnD [109]

Answer:

The electrons will be added by the hydrogen.

Explanation:

If we fire a single electron towards the hydrogen atom, the hydrogen atoms added the electron to its shell by applying force of attraction and becomes stable as well as non reactive in nature because the hydrogen attains the electronic configuration of helium which is a noble gas and have completed its outermost shell. The proton that is present in the nucleus attracts this electron and compel it to add in the electron.

7 0

2 years ago

A mixture of solute and solvent is called?

yaroslaw [1]

Answer:

homogeneous mixture

Explanation:

consisting of a solute dissolved into a solvent

8 0

3 years ago

How many moles are I 24.0x10^18 molecules NaOH?

BigorU [14]

Answer:

$\huge 3.986 \times { 10}^{ - 5} \: \: mol \\$

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{24 \times {10}^{18} }{6.02 \times {10}^{23} } \\ \\ = 3.986 \times { 10}^{ - 5} \: \: mol$

Hope this helps you

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3 years ago