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Ivanshal [37]
3 years ago
5

A substance has a high melting point and conducts electricity in the liquid phase The is substance is

Chemistry
1 answer:
posledela3 years ago
3 0

Answer:

oxygen

Explanation:

?

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What object has 13 protons
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Answer:

The isotope Al-27 has 13 protons

Explanation:

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4 years ago
Please Help Part B to question A
anyanavicka [17]

Answer:

Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.  as u know decreasing means going down and increasing means going up.  the reason why things decrease means something went wrong or something to happen to make it go down we all try to make things increase which means we try to make things go up instead of down. a lot of reasons is y things decrease is bc during the period of time something might go wrong or happen in a bad way that makes a lot of things decrease. for example like temperature when the temperature decreases it means it goes down and it might get cold but if the temperature increases it goes up so it might be ht or warm or maybe even cool. if something ever decreases it means during the period of time something bad happened and made it go down instead of up if something ever goes wrong that means something decreased. sometimes decreasing could be a good thing but most of the time it it bad  but there are sometimes when decreasing is good but not all the time.

8 0
3 years ago
An unknown metal absorbs 61 J of heat, and its temperature increases by 29∘C. What is the heat capacity of the metal?
aniked [119]

Answer:

2.103 J/C

Explanation:

Quantity of heat = Heat Capacity * Temperature change

Heat Capacity = Quantity of heat / Temperature Change

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3 years ago
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3 years ago
Which element is classified as a noble gas?<br> O<br> N<br> Cl<br> Xe
ivann1987 [24]

<u>Answer:</u> The correct answer is Xenon (Xe).

<u>Explanation:</u>

Noble gases are defined as the gases which have fully filled electronic configuration or stable electronic configuration.

From the given options:

<u>Option 1:</u> Oxygen (O)

The atomic number of this element is 8.

Electronic configuration of this element: 1s^22^22p^4

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

<u>Option 2:</u> Nitrogen (N)

The atomic number of this element is 7.

Electronic configuration of this element: 1s^22^22p^3

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

<u>Option 3:</u> Chlorine (Cl)

The atomic number of this element is 17.

Electronic configuration of this element: 1s^22^22p^63s^23p^5

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

<u>Option 4:</u> Xenon (Xe)

The atomic number of this element is 54.

Electronic configuration of this element: [Kr]5s^24d^{10}5p^6

As, this is a stable electronic configuration. Thus, it is considered as a noble gas.

Hence, the correct answer is Xenon (Xe).

7 0
4 years ago
Read 2 more answers
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