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stealth61 [152]
3 years ago
9

Post your responses to the following:

Chemistry
1 answer:
MissTica3 years ago
8 0
Best way: A good way to slow down the antibiotic resistance is that people can use antibiotics only when needed. This will make it so the virus does not become resistant to the antibiotics as quickly. This the most important way because new antibiotics take time to develop, and once one is used frequently enough, a new one is needed to replace it.
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For which of the following aqueous solutions would one expect to have the largest van’t Hoff factor (i)? a. 0.050 m NaCl b. 0.50
ira [324]

Answer:

The van't hoff factor of 0.500m K₂SO₄ will be highest.

Explanation:

Van't Hoff factor was introduced for better understanding of colligative property of a solution.

By definition it is the ratio of actual number of particles or ions or associated molecules formed when a solute is dissolved to the number of particles expected from the mass dissolved.

a) For NaCl the van't Hoff factor is 2

b) For K₂SO₄ the van't Hoff factor is 3 [it will dissociate to give three ions one sulfate ion and two potassium ions]

Out of 0.500m and 0.050m K₂SO₄, the van't hoff factor of 0.500m K₂SO₄ will be more.

c) The van't Hoff factor for glucose is one as it is a non electrolyte and will not dissociate.

7 0
3 years ago
The box in the above picture is falling from the top of a building to the ground. Two major forces are acting on the box as it f
MAVERICK [17]

Answer:

I think it's B

Explanation:

apologies if I get this wrong

8 0
2 years ago
Read 2 more answers
A ___________________ is a combination of two or more atoms that are held together by covalent bonds.
Andre45 [30]
The answer is Molecule
3 0
3 years ago
Read 2 more answers
Sodium (na), atomic number 11, has a tendency to lose an electron in the presence of chlorine. after losing the electron, na has
Paha777 [63]
Eleven because protons don’t leave.
3 0
3 years ago
A student uses a balance to determine the mass of an object as 5.719 grams. the correct mass of the object is 5.586 grams. what
zaharov [31]
The percentage error is given by multiplying relative error by 100%.
Therefore, to get the percentage error we need relative error which is given by dividing the absolute error with the actual value. 
Absolute error = 0.133
Percentage error = 0.133/5.586 × 100%
                            = 2.38%
The percentage error is therefore; 2.38%
8 0
3 years ago
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