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g100num [7]
3 years ago
12

Substance formed by the chemical combination of elements is called

Chemistry
1 answer:
nikitadnepr [17]3 years ago
3 0

Answer:

chemical equation

Explanation:

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Which part of the cell controls many functions of the cell and stores DNA?
kari74 [83]

Answer:

The Nucleus...

it perform many activities and stores DNA in a cell.

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3 years ago
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What are the hydronium and hydroxide ion concentrations in a solution whose ph is 6.52?
erica [24]

A solution with a pH of 6.52 has a hydronium ion concentration of 3.02x10-7 mol/L and a hydroxide ion concentration of 3.31x10-8 mol/L.

The hydronium ion concentration of a solution can be calculated from pH by using 10^{-pH}. For a pH of 6.52, hydronium ion concentration is 3.02x10-7 mol/L.

The concentration of hydroxide ions can be determined by identifying the value of pOH. The sum of pOH and pH is equal to 14, which is based on the negative logarithm of the ion-product constant of water. At a pH of 6.52, pOH is equal to 7.48.

The relationship between pOH and hydroxide ion concentration is the same as the relationship between pH and hydronium ion concentration. With this, the hydroxide ion concentration at pOH of 7.48 is 10^{-7.48} or 3.31x10-8 mol/L.

For more information regarding pH and pOH,  please refer to the link brainly.com/question/13557815.

#SPJ4

3 0
1 year ago
Someone help it’s due today
Kitty [74]

Answer:

All elements are neutral

Explanation:

The plum pudding model of the atom indicated that all elements are neutral. The model was proposed by J.J Thomson after he conducted his experiment on the gas discharge tube.

From the experiment he discovered electrons which he called cathode rays.

Therefore, he suggested the plum pudding model of the atom.

The model describes negatively charge sphere surrounded by positive charges to balance them.

6 0
3 years ago
The percentage of water vapor present in the air compared to that required for saturation is the ____. a. mixing ratio b. relati
Ivan

Answer:

B. Relative Humidity

7 0
3 years ago
Which of the following describes a compound? (Hint: Carbon and oxygen both appear on the periodic table.)
Alekssandra [29.7K]

Answer:

A

Explanation:

a compound is a pure substance and A tells that

5 0
3 years ago
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