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murzikaleks [220]
3 years ago
14

Which of the following is NOT correct about elements?

Chemistry
2 answers:
Andrews [41]3 years ago
5 0

Answer:

It is B.

All the other answers are true.

A element can not be simpler

Lynna [10]3 years ago
3 0

Answer: B. Elements are represented by chemical formulas.

Elements are pure substances, which means that they cannot be broken down into simpler substances. The element is the most basic substance that exists, breaking it down further means breaking it down into protons, neutrons, and electrons, which is no longer a substance.

Elements have chemical properties that allow them to form different types of bonds with other elements.

However, elements *alone* are not represented by their chemical formulas. Only chemical bonds or ions are represented by a chemical formula.

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Can someone do my homework pls!
Elza [17]

Answer:

Hi, a cheerful teen willing to help,

wishing you a splendiferous day ahead...

Explanation:

1ai. The most dense is Tungsten.

1aii. The least dense is Sodium.

1aiii. The strongest is Tungsten.

1b. All metals conduct electricity.

They are all magnetic except magnetic.

and all solid at room temperature except mercury.

1c. Mercury is a liquid at room temperature.

1d. Tungsten is used as filament for light bulbs due to its high melting point and it doesn't oxidize, this the filament won't melt.

1e. The lump of gold will sink because it is more dense than mercury.

7 0
3 years ago
Read 2 more answers
Water droplets forming on the inside of a cold windshield is an example of
8_murik_8 [283]
Condensation I think.
4 0
3 years ago
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Increasing the temperature increases the vaporization rate of a liquid because the excess energy is used to break covalent bonds
igor_vitrenko [27]

Answer:

False

Explanation:

False.  The molecules of liquid are hold in the liquid state due to intermolecular forces or Van de Waals forces , without affecting the molecule itself and its atomic bonds (covalent bonds).  When the temperature increases the kinetic energy of the molecules is higher , therefore they have more possibilities to escape from the attractive intermolecular forces and go to the gas state.

Note however that this is caused because the intermolecular forces are really weak compared to covalent bonds, therefore is easier to break the first one first and go to the gas state before any covalent bond breaks ( if it happens).

A temperature increase can increase vaporisation rate if any reaction is triggered that decomposes the liquid into more volatile compounds , but nevertheless, this effect is generally insignificant compared with the effect that temperature has in vaporisation due to Van der Waals forces.

4 0
3 years ago
A student carries out a chemical reaction that produces a brown powder. How should the student measure the amount of product for
adoni [48]
The mass of the solid product of the reaction is determined by weighing.
6 0
3 years ago
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How does a Camel prevent the loss of water from their body?​
Schach [20]

Camels lose less water through their urine and feces than many other mammals. Their kidneys concentrate water heavily, leading to salty urine. The intestines also reabsorb water from intestinal material as it is digested, so dry feces are produced.

7 0
2 years ago
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