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agasfer [191]
3 years ago
10

Why is oxygen crucial to living things?

Chemistry
1 answer:
KATRIN_1 [288]3 years ago
6 0
Oxygen is something that activated Cellar Reapiration that convets nutrients into energy (ATP).
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Identify the best practices when storing and using drying agents in the lab.
IrinaVladis [17]

Answer:

A. Close the drying agent container whenever it is not in active use.

C. Wrap the lid of the drying agent container with tape for storage.

Explanation:

Drying agents also known as desiccants are used in pharmaceutical, food and other manufacturing to keep substances dry. These drying agents are anhydrous and hygroscopic. The right usage of these products requires that they are always stored in an air-tight container.

When they are to be removed from a container containing a solvent, they are to be separated by filtration or decanting.

7 0
2 years ago
An enzyme is discovered that catalyzes the chemical reaction SAD ↔ HAPPY A team of motivated researchers sets out to study the e
Pepsi [2]

Answer:

The K_{m} of a substrate will be "10 μM".

Explanation:

The given values are:

E_{t} = 20 \ nM

[Substract] = 40 \ \mu M

K_{cat}=600 \ s^{-1}

Reaction velocity, Vo=9.6 \ \mu M s^{-1}

As we know,

⇒  Vo=\frac{K_{cat}[E_{t}][S]}{K_{m}+[S]}

On putting the estimated values, we get

⇒  9.6=\frac{600\times 20\times 10^{-3}\times 40}{K_{m}+40}

⇒  K_{m}+40=\frac{600\times 20\times 10^{-3}\times 40}{9.6}

⇒  K_{m}+40=50

On subtracting "40" from both sides, we get

⇒  K_{m}+40-40=50-40

⇒  K_{m}=10 \ \mu M

6 0
3 years ago
How many grams are in 0.39 moles of water
Shtirlitz [24]

Answer:   7.025959200000001

Explanation:

5 0
2 years ago
Which answer below is not an indication that a chemical reaction has occurred?
ankoles [38]
Only when there is no product that is when a chemical reaction has not occured
4 0
3 years ago
Drops of a clear liquid are added to a red liquid. As the drops are added, the red liquid becomes orange, then yellow
lakkis [162]
This must be a universal indicator, the pH is going down everytime you add more :)
3 0
3 years ago
Read 2 more answers
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