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vaieri [72.5K]
2 years ago
13

How many protons, neutrons, and

Chemistry
1 answer:
Alexus [3.1K]2 years ago
7 0

Your answer is 4 protons 4 electrons and 5 neutrons

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x = 231/90 Th

Explanation:

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3 years ago
fire transfers heat by ___, meaning some heat rises, and ___, meaning some heat goes out in every direction.
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Fire transfers heat by CONVECTION, meaning some heat rises, and FALL, meaning some heat goes out in every directions.




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How does the periodic table used today classify elements?
S_A_V [24]

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The Periodic Table organizes chemical elements according to the number of protons that each has in its atomic nucleus

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3 years ago
Read 2 more answers
You have just completed assaying the change in absorbance for an enzyme. The initial absorbance was 0.022; the absorbance after
Hitman42 [59]

Answer:

The answer is 0.844/10 minutes

Explanation:

You have an enzyme that catalizes a reaction which gives a product that can be quantified by an absorbance measurement. The more reaction time, the more product quantity and higher absorbance.

The rate of the reaction is the change in products quantity per time unit. As you are using the absorbance as a measure of the product quantity, you can calculate the rate as the change in absorbance (ΔA) per time (in minutes) as follows:

rate= ΔA/time

rate= (final absorbance - initial absorbance) /minutes

rate= (0.444-0.022)/5 min

rate= 0.422/5 min

In 10 minutes will be :

rate= 0.844/10 min

Commonly, a rate is the relation between two quantities measured in different units. For example, the speed of a car is the change in meters (traveled distance) per time (m/s or km/h). For an enzyme, is the same (quantity of product/time).

4 0
2 years ago
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