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katrin2010 [14]
3 years ago
14

Atomic number of pottassium

Chemistry
1 answer:
gladu [14]3 years ago
4 0

Answer:

19

Explanation:

The atomic number for potassium is 19. You can look on the Periodic Table.

Hope this helps!

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Describe how plants might be affected if the inter molecular forces in water decreased? i need asap!
vovangra [49]

Answer:

Water has polar O-H bonds. The negative O atoms attract the positive H atoms in nearby molecules, leading to the unusually strong type of dipole-dipole force called a hydrogen bond. Since water has hydrogen bonds, it also has dipole-induced dipole and London dispersion forces.

Hope it helped!!

6 0
3 years ago
Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen,
Sati [7]

Answer:

The answer is: Law of multiple proportions        

Explanation:

The law of multiple proportions is a law of chemical combination given by Dalton in 1803.

According to this law, if more than one chemical compound is formed by combining two elements, then the mass of an element that combines with the fixed mass of other element is represented in the form of small whole number ratio.

<u>Therefore, is an illustration of the law of the law of multiple proportions.</u>

8 0
3 years ago
BRAINLIESTTT ASAP!!! PLEASE HELP ME :)
Iteru [2.4K]
<h3>✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Astrology: It hasn't shown any clear effectiveness in studies and doesn't have any scientific validity.

Aromatherapy with essential oils: It is only backed with low quality studies that just demonstrate the placebo effect

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5 0
4 years ago
"Select True or False: The following data for the reaction: A(g) + 2B(s) === AB2(g) provides evidence that the reaction is exoth
galina1969 [7]

The reaction as shown is known to be an exothermic reaction.

<h2>Endothermic and exothermic reaction:</h2>

Depending on the temperature of the reaction vessel after reaction, the reaction could be classified as;

  • Endothermic
  • Exothermic

In an endothermic reaction, heat is absorbed and the rate of reaction increasing with increase in temperature while in an exothermic reaction, the rate of reaction decreases with increase in temperature.

Hence, the correct statements are;

  • The reaction is an exothermic reaction.
  • The value of K decreases as the value of T increases.

Learn more about exothermic reaction: brainly.com/question/14969584

7 0
3 years ago
How is a hydrogen bond different from an ionic or covalent bond?
o-na [289]

Answer:

Hydrogen bonds are totally different to both covalent bonds and ionic bonds. Hydrogen bonds are intermolecular bonds, that means they occur in between two molecules. ... When H atom is close to O,F, N atoms those atoms can attract H atoms electrons temporarily, thus making a weak bond.

Explanation:

6 0
4 years ago
Read 2 more answers
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