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2 years ago

Percocet contains oxycodone at varying strengths.Every strength also contains 325 mg of

Chemistry

1 answer:

Marat540 [252]2 years ago

6 0

5.56 Rhats The right answer

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How can you tell one elements from another?

stepladder [879]

The protons in the atom determine what the atom is. It also determines the atomic number. For example, hydrogen has one proton, so it the atomic number is one. Lithium has an atomic number of three because it has three protons.

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3 years ago

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Which elements are metalloids ? Check all that apply

Degger [83]

Answer:

here is definition with example

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3 years ago

How many moles are in 8.32 times 1024 molecules of CO2

Svetradugi [14.3K]

Answer:

13.8 mol CO₂

General Formulas and Concepts:

Chemistry - Atomic Structure

Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

Step 1: Define

8.32 × 10²⁴ molecules CO₂

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

$8.32 \cdot 10^{24} \ molecules \ CO_2(\frac{1 \ mol \ CO_2}{6.022 \cdot 10^{23} \ molecules \ CO_2} )$ = 13.816 mol CO₂

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

13.816 mol CO₂ ≈ 13.8 mol CO₂

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2 years ago

What statement is an accurate comparison of the properties of compounds and the properties of the elements that the compounds co

Darya [45]

When elements are combined to form compounds, they undergo chemical change in which the properties of the composing elements are always different from the compounds formed after reaction. The change is not only applicable to the chemical properties of the elements but also the physical states of the substances. Answer then is B.

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3 years ago

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Understand the Relationship Between the Structure of Alcohol and Their physical Properties Question Which of the following alcoh

IrinaK [193]

Answer:

Ethanol most easily forms hydrogen bonds.

Explanation:

The difference among the alcohols in this question is the size of carbonic chain and the position of the -OH group.

Ethanol has 2 carbons and the -OH group is terminal. The other alcohols have more carbons and the -OH group is not terminal. This means that the approximation of molecules will be facilitated for ethanol, and the interaction through hydrogen bons will be easier. However, for the other molecules, there will be steric hindrance, which will make it more difficult for the molecules to make hydrogen bonds.

The figure attached shows the alcohol structures.

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3 years ago