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kap26 [50]
4 years ago
14

Hellpppppoppopppppppp

Chemistry
2 answers:
Kipish [7]4 years ago
8 0

Answer:

C

Explanation:

it's always colder at night and close to night especially near water and that's when wind tends to blow the most

bonufazy [111]4 years ago
8 0
C because it’s colder at night with the wind and the water
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Help me i don’t know what to put here pls thank you!
taurus [48]
I’m pretty sure that the answer is life, they all have life
4 0
3 years ago
Iodine pentafluoride reacts slowly with glass and violently with water. determine its molecular mass.
pickupchik [31]
<h3>Answer:</h3>

               221.90 g.mol⁻¹

<h3>Explanation:</h3>

                          The mass of contained by a molecule is known as molecular mass. It is the sum of atomic weights of the elements contained by the molecule. In given case Iodine Pentafluoride has a chemical formula,

                                                          IF₅

The atomic weights of each element are as;

                                        Iodine  =  126.90 g.mol⁻¹

                                        Fluorine  =  19.00 g.mol⁻¹

As there are five atoms of Fluorine so, we will multiply the atomic weight of Fluorine by five and that of Iodine by one as there is only one Iodine atom.

Therefore,

         Molecular Mass of IF₅  =  (1 × 126.90 g.mol⁻¹) + (5 × 19.00 g.mol⁻¹)

         Molecular Mass of IF₅  =  (126.90 g.mol⁻¹) + (95.00 g.mol⁻¹)

         Molecular Mass of IF₅  =  221.90 g.mol⁻¹

8 0
4 years ago
Guys help me <br><br><br><br><br><br> Please
nignag [31]

Answer:

8.38×10raise to power 23

Explanation:

mass of sugar=density ×volume

=. 1.59g/ml×25ml=39.75

no. of miles= given mass/ molar mass

= 39.75/342.3g / mole

1 mole of sugar =C12 H22 O11

contains

12× 6.023 × 10 ∆23=72.28× 10∆ 23 ×6.023×10²³

= 8.38× 10²³

4 0
3 years ago
CO_2 sublimes readily at 25°C. Which properties are usually associated with a compound that undergoes this kind of change?
antoniya [11.8K]

Explanation:

Sublimation is defined as a process in which solid state of a substance directly changes into vapor or gaseous state without undergoing liquid phase.

For example, naphthalene balls show sublimation at room temperature.

As this process does not cause any change in chemical composition of a substance. Hence, it is known as a physical process.

Similarly, when CO_{2} sublimes readily at 25^{o}C. This shows change in physical state of carbon dioxide is taking place, i.e, from solid to gaseous phase.

Thus, we can conclude that when CO_{2} sublimes readily at 25^{o}C then it means physical properties are usually associated with a compound that undergoes this kind of change.

4 0
3 years ago
Why is sea water more dense than tap water? Give than explanation for these differences pleaseeee don’t copy off the internet :(
vodka [1.7K]

Answer:

See below ~

Explanation:

Sea water has a <u>high amount of salt present</u> in it. The density of salt is <u>higher than that of water</u>. It <u>dissolves in water</u>, thereby increasing its density. Hence, this is why sea water has a higher density than tap water.

8 0
3 years ago
Read 2 more answers
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