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USPshnik [31]
3 years ago
8

Please HELP!!! I DESPERATELY NEED THESE TO BE CORRECT!

Chemistry
2 answers:
Butoxors [25]3 years ago
7 0

Answer:

A

Explanation:

kramer3 years ago
6 0

Answer:

i only know 6 whitch is the +ion

Explanation:

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Which branch of chemistry would be used by physicians when deciding
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Medicinal chemistry and pharmaceutical chemistry are disciplines at the intersection ofchemistry, especially synthetic organicchemistry, and pharmacology and various other biological specialties, where they are involved with design,chemical synthesis and development for market of pharmaceutical agents, or bio-active ...

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3 years ago
What is 0.045 rounded to the nearest hundredth?
deff fn [24]
0.05 is the answer to your question
5 0
3 years ago
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Salt is ionic, and oil is covalent. If you add water, the salt will dissolve in the water, and the oil will float to the top. Yo
Softa [21]

Is this a question?

Cause if it is I dont understand it.

4 0
3 years ago
What is the mass in grams of 14.2 liters of sulfur dioxide gas at STP?
ICE Princess25 [194]

Answer:

Mass = 40.4 g

Explanation:

Given data:

Mass in gram = ?

Volume of SO₂ = 14.2 L

Temperature = standard = 273 K

Pressure =  standard = 1 atm

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

1 atm × 14.2 L = n × 0.0821 atm.L/ mol.K   × 273 K

14.2 atm.L = n ×  22.41 atm.L/ mol

n = 14.2 atm.L/22.41 atm.L/ mol

n = 0.63 mol

Mass of sulfur dioxide:

Mass = number of moles × molar mass

Mass = 0.63 mol × 64.1 g/mol

Mass = 40.4 g

7 0
2 years ago
C. 49.8 grams of ki is dissolved in enough water to make 1.00 l of solution. what is the molarity?
taurus [48]

Hey There!:


Molar Mass KI => 166.003 g/mol


* number of moles:


n = mass of solute / molar mass


n = 49.8 / 166.003


n = 0.3 moles KI


Therefore:


M = n / V


M = 0.3 / 1.00


M = 0.3 mol/L


hope this helps!

7 0
3 years ago
Read 2 more answers
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