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inn [45]
2 years ago
5

That isssssss? (thank you whoever answers in advance)​

Chemistry
2 answers:
omeli [17]2 years ago
8 0

Answer:

c

Explanation:

A pathogen or infectious agent is a biological agent that causes disease or illness to its host. The term is most often used for agents that disrupt the normal physiology of a multicellular animal or plant. However, pathogens can infect unicellular organisms from all of the biological kingdoms.

Serggg [28]2 years ago
8 0

Answer:

Harmful to living organisms

Explanation:

tbh, quizzlet lol

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Two students were doing an experiment which involved adding potassium sulfate powder to water. They added one teaspoon of potass
lana [24]

Answer:

less concentrated

Explanation:

because it will get dissociated into more ions

7 0
2 years ago
Is H3O+ polar or non polar? (explain please.)?
pishuonlain [190]
The overall molecule is Polar because the shape of the molecule is Trigonal Pyramidal, which means it has the lone pair electrons. Becuase of the lone pair the pulling is unequal.   

H3O+ has 3 polar bonds. 
To know if the bonds are polar or nonpolar find the difference of the element's electronegativity charge. 
H has electronegativity charge of 2.2, and O has 3.4.
Always subtract the smaller number from the greater one. 
So 3.4 - 2.2 = 1.2 
If the difference is from 0-0.4 the bond is nonpolar, but if it's from 0.5-1.9 the bond is polar. 
So, 1.2 is polar bond. So H3O+ has 3 polar bonds, and the overall molecule is polar too. 

A simple way to know if it's polar or nonpolar is to draw the lewis dot structure, and use VSEPR. 

8 0
3 years ago
Which combination of elements are most likely to react to form ionic compounds
Nat2105 [25]
Ionic compounds form between metals and non metals.
7 0
3 years ago
Apt A piece of chalk becomes shorter as it is used. Which of the following is NOT true of the shorter piece of chalk?
Tanzania [10]
A. It’s mass has changed if not that’s then it’s B.
5 0
3 years ago
Balance the equation below, using the smallest whole-number coefficients. ____Fe(s) + ____ O2(g) + ____ H2O(l) → ____Fe(OH)2(s)
Alexxandr [17]

Answer:

2Fe(s) + O₂(g) + 2H₂O(l) → 2Fe(OH)₂(s)

Explanation:

8 0
2 years ago
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