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Simora [160]
1 year ago
15

Which statement best describes how the scientific community analyzes data?

Chemistry
2 answers:
gulaghasi [49]1 year ago
7 0

Answer: D. Scientists can come to different conclusions based on the same data.

hammer [34]1 year ago
5 0
Scientists can come to different conclusions based on the same data
You might be interested in
What are the products in a chemical equation located?
Arturiano [62]

Answer:

The right-hand side

Explanation:

A chemical equation describes a chemical reaction. Products are the end-result of the reaction and are written on the right-hand side of the equation.

7 0
3 years ago
Read 2 more answers
What is the [H+] if pOH =9.50 <br> will it be acid or basic?
Crank

Taking into account the definition of pH and pOH, the [H⁺] is 3.16×10⁻⁵ M and the solution will be acid.

First of all, pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.

The pH is defined as the negative base 10 logarithm of the activity of hydrogen ions, that is, the concentration of hydrogen ions or H₃O⁺:

pH= - log [H⁺]= - log [H₃O⁺]

Similarly, pOH is a measure of hydroxyl ions in a solution and is expressed as the logarithm of the concentration of OH⁻ ions, with the sign changed:

pOH= - log [OH⁻]

The following relationship can be established between pH and pOH:

pH + pOH= 14

In this case, being pOH= 9.50, pH is calculated as:

pH + 9.40= 14

pH= 14 - 9.50

<u><em>pH= 4.50</em></u>

Replacing in the definition of pH the concentration of H⁺ ions is obtained:

- log [H⁺]= 4.50

Solving :

[H⁺]= 10⁻⁴ ⁵

<u><em>[H⁺]= 3.16×10⁻⁵ M</em></u>

The numerical scale that measures the pH of the substances includes the numbers from 0 to 14, being acidic solutions with a pH lower than 7, and basic those with a pH greater than 7. The pH = 7 indicates the neutrality of the solution.

In this case, the pH has a value of 4.50. So, the solution is acidic.

In summary, the [H⁺] is 3.16×10⁻⁵ M and the solution will be acid.  

Learn more:

  • <u>brainly.com/question/16032912?referrer=searchResults </u>
  • <u>brainly.com/question/13557815?referrer=searchResults</u>
5 0
2 years ago
HELP
Vesnalui [34]

Answer:

145.8g

Explanation:

Given parameters:

Number of moles of magnesium hydroxide  = 2.5mol

Unknown:

Mass of Mg(OH)₂  = ?

Solution:

To solve this problem we use the expression below;

  Mass of Mg(OH)₂ = number of moles x molar mass

 Molar mass of Mg(OH)₂ = 24.3 + 2(16 + 1)  = 58.3g/mol

 Mass of Mg(OH)₂ = 2.5 x 58.3  = 145.8g

3 0
2 years ago
How many moles is 2.2 x 1023 atoms of Fe?
kow [346]

Answer:

it's 3.77 moles

Explanation:

Pls give brainliest :)

4 0
2 years ago
The universe cooled after the Big Bang. At some point, hydrogen atoms combined to form helium. What is this process called?
Lunna [17]
A) nuclear fusion is the answer
6 0
3 years ago
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