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kolbaska11 [484]
3 years ago
8

Fundamental substances that cannot be broken down chemically into simpler subsances are______

Chemistry
1 answer:
Gemiola [76]3 years ago
7 0

Answer:

A. Elements

Elements are substances that cannot be separated into simpler substances. Salt is made up of the elements sodium and chloride. Water is made up of the elements hydrogen and oxygen, to list a few.

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The compound has the empirical formula of CH. Give some possible molecular formulas for this compound if you didn't know the mol
olchik [2.2K]

Answer:

Convert the mass of each element to moles using the molar mass from the periodic table. Divide each mole value by the smallest number of moles calculated. Round to the nearest whole number. This is the mole ratio of the elements and is represented by subscripts in the empirical formula.

Explanation:

The result is the molecular formula

6 0
3 years ago
Convert as indicated.
aleksklad [387]
B is the answer to that problem.
5 0
3 years ago
Read 2 more answers
What elements don't form bonds
Agata [3.3K]

Answer:

Noble gases are a  set of elements in the periodic table because they don't naturally bond with other elements. *Examples ...Helium; Neon; Radon; Xenon; Argon etc

Explanation:

theyre noble gases.

3 0
3 years ago
A 50.0g g sample of 16n decays to 12.5g in 14.4 seconds. What is its half life
mixas84 [53]
T is amount after time t 
<span>Ao is initial amount </span>
<span>t is time </span>
<span>HL is half life </span>

<span>log (At) = log [ Ao x (1/2)^(t/HL) ] </span>
<span>log (At) = log Ao + log (1/2)^(t/HL) </span>
<span>log (At) = log Ao + (t/HL) x log (1/2) </span>

<span>( log At - log Ao) / log (1/2) = t / HL </span>
<span>log (At/Ao) / log (1/2) = t / HL </span>

<span>HL = t / [( log (At / Ao)) / log (1/2) ] </span>

<span>HL = 14.4 s / [ ( log (12.5 / 50) / log (1/2) ] </span>

<span>HL = 14.4 s / 2 = 7.2 seconds </span>
8 0
3 years ago
What is the mode of action of most antifungal drugs?
Goshia [24]

Inhibition of protein synthesis is the mode of action done by most antifungal drugs.

<h3>What is the mode of action of antifungal drugs?</h3>

Antifungals drugs inhibit the synthesis of ergosterol the main fungal sterol, polyenes which interact with fungal membrane sterols and 5-fluorocytosine inhibits macromolecular synthesis.

So we can conclude that inhibition of protein synthesis is the mode of action done by most antifungal drugs.

Learn more about drug here: brainly.com/question/26254731

3 0
2 years ago
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