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Flauer [41]
3 years ago
14

14. A researcher Is curious to find out what effect classical music has on people's level of relaxation

Chemistry
1 answer:
Dima020 [189]3 years ago
3 0

Answer:

It should be "B"

Explanation:

:) :) :) :) :) :)

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Which of the following would not be helpful when distinguishing between sugar and table salt?
inysia [295]
Color they look the same hope this helps.
4 0
2 years ago
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What volume of so2 is produced at 325 k and 1.35 atm when 15.0 grams of hcl reacts with excess k2so3?
Helen [10]
The balanced equation for the above reaction is as follows;
2HCl + K₂SO₃ ---> 2KCl + H₂O + SO₂
stoichiometry of HCl to SO₂ is 2:1
number of moles of HCl reacted - 15.0 g / 36.5 g/mol = 0.411 mol 
according to molar ratio 
number of SO₂ moles formed - 0.411 mol /2 = 0.206 mol
since we know the number of moles we can find volume using ideal gas law equation 
PV = nRT
where
 P - pressure - 1.35 atm x 101 325 Pa/atm = 136 789 Pa 
V - volume 
n - number of moles - 0.206 mol 
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature - 325 K
substituting values in the equation 

136 789 Pa x V = 0.206 mol x 8.314 Jmol⁻¹K⁻¹ x 325 K 
V = 4.07 L 
volume of SO₂ formed is 4.07 L


8 0
3 years ago
Which of the following statements about enzymes is true?. a. Enzymes are able to heat up molecules so that they can react.. b. E
taurus [48]
The answer is C as enzymes are biological catalysts that act on a substrate such as starch if the enzyme were amylase

hope that helps 
5 0
2 years ago
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 Some
Misha Larkins [42]
<span>density is defined as mass per volume.. so 94 mL makes no sense.</span>
7 0
3 years ago
Why might it be important to follow the chain of custody when handling evidence?
Ierofanga [76]

Answer:

To keep a record of who has the evidence and when

Explanation:

Don't want anyone tampering with it, hope this helps!!!

5 0
2 years ago
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