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White raven [17]
3 years ago
14

Define what is halflife​

Chemistry
1 answer:
zhuklara [117]3 years ago
8 0

Half-life is the time it takes for a substance to lose half of its pharmacological, physiological, or radiological activity.

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PLEASE HELP ASAP Florida is bordered by water on three sides. Which property of water helps moderate Florida’s coastal areas?
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Answer:

The second one

Explanation:

4 0
3 years ago
What would happen to the rate of a reaction with rate law rate = k [NO]^2[H2] if
Ede4ka [16]

The rate of a reaction would be one-fourth.

<h3>Further explanation</h3>

Given

Rate law-r₁ = k [NO]²[H2]

Required

The rate of a reaction

Solution

The reaction rate (v) shows the change in the concentration of the substance (changes in addition to concentrations for reaction products or changes in concentration reduction for reactants) per unit time.  

Can be formulated:  

Reaction: aA ---> bB  

\large{\boxed{\boxed{\bold{v~=~-\frac{\Delta A}{\Delta t}}}}

or  

\large{\boxed{\boxed{\bold{v~=~+\frac{\Delta B}{\Delta t}}}}

The concentration of NO were halved, so the rate :

\tt r_2=k[\dfrac{1}{2}No]^2[H_2]\\\\r_2=\dfrac{1}{4}k.[No]^2[H_2]\\\\r_2=\dfrac{1}{4}r_1

3 0
2 years ago
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Which correctly lists the types of matter, in terms of their atoms, in order from least tightly packed to most tightly packed? s
SSSSS [86.1K]

Answer:

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True or false? Enzymes in the digestive tract catalyze hydrolysis reactions.
Slav-nsk [51]

Answer:

The given statement is true.

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The hydrolysis reaction is the reaction by which large molecules are broken down into smaller molecules with the help of water.

Most of the complex molecules or nutrients such as starch, protein et cetera are broken down into their respective smaller units with the help of hydrolysis reaction.

For example, lactase catalyzes the hydrolysis of lactose into glucose and galactose.

5 0
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Which orbital is the first to fill with electrons in a given principal energy level?
Mkey [24]

e) both s and p

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