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Annette [7]
3 years ago
14

While performing an experiment on the enzyme amylase, Macy uses three different

Chemistry
1 answer:
Paul [167]3 years ago
5 0
The pH affects the activiy of enzymes.

Enzymes are a catalysts. They affect the speed of reaction.

Extreme pHs, very low or very high, regularly drives to a poor performance of the enzymes, even to total loss of activity.

pH 3.0 is a very acid pH and any enzyme will not show activity at that pH.

The optimum range of pH for Amylase is 6.7 to 7.0, that is why she found that the reaction was fastest at pH 6.7.


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A metal is found that has a mass of 27g and will displace 6mL of water. Calculate its density and identify the metal.
melisa1 [442]

The density of metal = 4.5 g/ml, and the metal = Titanium

<h3>Further explanation  </h3>

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

Density formula:  

\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}

ρ = density  

m = mass  

v = volume  

mass of metal=27 g

volume = 6 ml

The density :

\tt \rho=\dfrac{27}{6}\\\\\rho=4.5~g/ml

The metal with a density of 4.5 g/ml is Titanium

3 0
3 years ago
Nitrogen has a melting point of -210.0°C and a boiling point of -195.8°C. What is nitrogen's state of matter at -170°C?
mamaluj [8]

Answer:

gas -170 is hotter than -195

Explanation:

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How much of a 60.0 gram sample of Carbon-14 DECAYED after 17,100 if 5
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The answer is A.7.50
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What is the meaning of semipermeability?​
ollegr [7]

Answer:

semipermeability

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In science, observations are objective, but intereroes are subjective. True or False?
Fed [463]

Answer:

the answer is False I hope this helps

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