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Ksenya-84 [330]
2 years ago
15

Help me pLSSSSSSSSSSSSSSS​

Chemistry
2 answers:
enyata [817]2 years ago
5 0

Answer:

they vary from reaction to reaction

aliina [53]2 years ago
4 0

Answer:

they are very difficult to notice

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Volaic cells produce a positive overall charge what does this indicate
juin [17]
It means the process carried by the cell is spontaneous. 
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3 years ago
We divide the electromagnetic spectrum into six major categories of light, listed below. Rank these forms of light from left to
Kazeer [188]

Explanation:

The electromagnetic spectrum shows the wavelength or frequency range of different waves starting from gamma rays to radio waves.

In the electromagnetic spectrum, gamma rays have shorter wavelength while radio wave have longest wavelength.

The correct order is as follows :

(A) Gamma rays

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(C) Ultraviolet

(D) Visible light

(E) Infrared waves

(F) Radio waves

So, the correct order form left to right in order of increasing wavelength is as follows :

Gamma rays < X rays < Ultraviolet < Visible Light < Infrared Waves < Radio Waves

7 0
3 years ago
ASAP PLEASEE
Agata [3.3K]

Seven diatomic elements are H₂, Cl₂, N₂, F₂, Br₂, I₂ and O₂.

<h3>Which are diatomic molecules?</h3>

Diatomic molecules are those molecules in which two atoms of same elements are present, and they are combined to attain the stability.

The seven diatomic molecules which are exist in the chemistry are:

  • Hydrogen gas (H₂)
  • Chlorine gas (Cl₂)
  • Nitrogen gas (N₂)
  • Fluorine gas (F₂)
  • Bromine gas (Br₂)
  • Iodine gas (I₂)
  • Oxygen gas (O₂)

Hence H₂, Cl₂, N₂, F₂, Br₂, I₂ and O₂ are 7 diatomic molecules.

To know more about diatomic molecules, visit the below link:
brainly.com/question/14466404

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7 0
2 years ago
What two countries have nearly 50% of global coal reserves? a. United States and Canada b. United States and Russia c. Brazil an
madam [21]

the answer is USA and Russia

6 0
3 years ago
Read 2 more answers
a solution is prepared at 20 degrees celsius and its concentration is expressed into different units molarity and molality the s
olganol [36]

Answer:

molarity

Explanation:

Molarity is defined as the number of moles of solute in 1 liter of a solution while molality is defined as the mole of solute in 1 kg of solvent.

<em>If a solution prepared at 20 degrees celsius is heated to 88 degrees celsius, the molarity would change because the volume of a solution is temperature-dependent due to expansion or contraction. The molality, however, will not change for as long as the amount of the solvent remains unchanged due to the heating. </em>

8 0
3 years ago
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