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2 years ago

What are at least 3 places carbon can be found?

Chemistry

1 answer:

Tcecarenko [31]2 years ago

7 0

Answer:

Carbon can be found in the ocean, rocks, and the atmosphere around us.

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Is lemon juice or orange juice more acidic? Please explain.

Marysya12 [62]

<span>Lemon juice has more acid because of its density and it contains more sodium.</span>

3 0

3 years ago

1. What is the relationship between the concentration of the hydronium and hydroxide

Hitman42 [59]

Answer:

- Neutral solutions: concentration of hydronium equals the concentration of hydroxide.

- Acid solutions: concentration of hydronium is greater than the concentration of hydroxide.

- Basic solutions concentration of hydronium is lower than the concentration of hydroxide.

Explanation:

Hello,

It is widely known that the pH of water is 7, therefore the pOH of water is also 7 based on:

$pH+pOH=14$

In such a way, we can compute the concentration of hydronium and hydroxide ions as shown below:

$pH=-log([H^+])\\$

$[H^+]=10^{-pH}=10^{-7}=1x10^{-7}M$

$pOH=-log([OH^-])$

$[OH^-]=10^{-pOH}=10^{-7}=1x10^{-7}M$

Thus, we notice that the relationship between the concentration of the hydronium is equal for water or neutral solutions. Moreover, if we talk about acid solutions, pH<OH therefore the concentration of hydronium is greater than the concentration of hydroxide. On the other hand if we talk about basic solutions, pH>OH therefore the concentration of hydronium is lower than the concentration of hydroxide.

Best regards.

4 0

3 years ago

A covalent bond between an oxygen atom and a hydrogen atom is best described as _____.

Igoryamba

The answer is most likely nonmetals. :)

7 0

3 years ago

What particle is emitted in alpha radiation

Norma-Jean [14]

The answer is Helium Nucleus. The alpha particle is what is emitted.

4 0

4 years ago

Read 2 more answers

Phosphorus-32 (32P) is an isotope that is commonly used for medical and biological research. Phosphorus-32 has a half-life of 14

Pachacha [2.7K]

The activity of the sample when it was shipped from the manufacturer is 4.54 mCi

<h3>How to determine the number of half-lives that has elapsed </h3>

From the question given above, the following data were obtained:

Time (t) = 48 hours
Half-life (t½) = 14.28 days = 14.28 × 24 = 342.72 hours
Number of half-lives (n) =?

n = t / t½

n = 48 / 342.72

n = 0.14

<h3>How to determine the activity of the sample during shipping </h3>

Number of half-lives (n) = 0.14
Original activity (N₀) = 5.0 mCi
Activity remaining (N) =?

N = N₀ / 2ⁿ

N = 5 / 2^0.14

N = 4.54 mCi

Thus, the activity of the sample during shipping is 4.54 mCi

Learn more about half life:

brainly.com/question/2674699

5 0

3 years ago