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Fittoniya [83]
3 years ago
6

Reactions that absorb thermal energy are called blank reactions

Chemistry
1 answer:
Valentin [98]3 years ago
7 0
Endothermic reactions
You might be interested in
How many moles are there in 8.94*10^24 atoms P?
IgorC [24]

Answer:

<h2>14.85 moles </h2>

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{8.94 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\   = 14.850498

We have the final answer as

<h3>14.85 moles</h3>

Hope this helps you

7 0
3 years ago
Read 2 more answers
Which is the formula for diarsenic pentoxide?
gladu [14]

As205

Hope this helps:)

6 0
3 years ago
Can someone help me with these two?
andrey2020 [161]

Answer:

adding

opposite

Explanation:

dont blame me if u get them wrong

7 0
3 years ago
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(As) in noble-has notion
vaieri [72.5K]

Answer:

[Ar] 4s2 3d10 4p3

Explanation:

Arsenic is Element 33. It is the 15th element in the Fourth Row, following the noble gas Ar at the end of the Third Row.

Thus, its noble gas electron configuration is

[Ar] 4s2 3d10 4p3

4 0
4 years ago
Identify the elemant that is a nonmetal , a gas, and has an element symbol that starts with the letter a
lukranit [14]
The element that is a nonmetal, a gas, and has an element symbol that starts with the letter a is Ar (Argon).
Element Ar (Argon) is the third member of noble gases, in period 8, and makes up about 1% of the Earth's atmosphere. It has approximately the same solubility as oxygen and it is 2.5 times as soluble in water as nitrogen. It is an inert element that is colorless and odorless in both its liquid and gaseous forms. 
6 0
4 years ago
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