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stich3 [128]
2 years ago
5

What quantity is the same among atoms of the same element?

Chemistry
1 answer:
Vedmedyk [2.9K]2 years ago
8 0

Answer:

Neutrons or Neutral atoms

Explanation:

Neutral atoms of each element contain an equal number of protons and electrons. The number of protons determines an element's atomic number and is used to distinguish one element from another.

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Smart people<br><br> Is water wet?<br><br> I need to know
WINSTONCH [101]

Answer:

Explanation:

"Wet" is not a scientific description - it means something that contains water. As water cannot contain water, water is not wet.

5 0
2 years ago
Read 2 more answers
Gallium oxide, Ga.Oy, forms when gallium is combined with oxygen. A 1.25 g of Ga is allowed to react with excess oxygen and 1.68
mrs_skeptik [129]

Answer : The chemical formula of a compound is, Ga_2O_3

Solution :  Given,

Mass of gallium = 1.25 g

Mass of gallium oxide = 1.68 g

Mass of oxygen = Mass of gallium oxide - Mass of gallium

Mass of oxygen = 1.68 - 1.25 = 0.43 g

Molar mass of Ga = 69.72 g/mole

Molar mass of O = 16 g/mole

Step 1 : convert given masses into moles.

Moles of Ga = \frac{\text{ given mass of Ga}}{\text{ molar mass of Ga}}= \frac{1.25g}{69.72g/mole}=0.0179moles

Moles of O = \frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{0.43g}{16g/mole}=0.027moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For Ga = \frac{0.0179}{0.0179}=1

For O = \frac{0.027}{0.0179}=1.5

The ratio of Ga : O = 1 : 1.5

To make in whole number we multiple ratio by 2, we get:

The ratio of Ga : O = 2 : 3

The mole ratio of the element is represented by subscripts in empirical formula.

The Empirical formula = Ga_2O_3

The empirical formula weight = 2(69.72) + 3(16) = 187.44 gram/eq

Now we have to calculate the molecular formula of the compound.

Formula used :

n=\frac{\text{Molecular formula}}{\text{Empirical formula weight}}

n=\frac{187.44}{187.44}=1

Molecular formula = (Ga_2O_3)_n=(Ga_2O_3)_1=Ga_2O_3

Therefore, the chemical of the compound is, Ga_2O_3

5 0
3 years ago
Which of the following is the best description of a conversion table
kirill [66]
Can’t tell ya bc you didn’t list the answers
3 0
2 years ago
2. The Food and Drug Administration (FDA) mandates that all vinegar sold in the United States must have a minimum concentration
Scilla [17]

Answer:

The minimum molarity of acetic acid in vinegar according to given standards is 0.6660 mol/L.

Explanation:

4% acetic acid by mass means that 4 gram of acetic acid in 100 g solution.

Given that density of the vinegar is same is that of water =  1 g/mL

Mass of the vinegar solution = 100 g

Volume of the vinegar solution = V

Density=\frac{Mass}{Volume}

1 g/mL=\frac{100 g}{V}

V = 100 mL = 0.1 L

Moles of acetic acid =\frac{4 g}{60.052 g/mol}=0.0666 mol

Molarity=\frac{\text{Moles of solute}}{\text{Volume of solution(L)}}

M=\frac{0.0666 mol}{0.1 L}=0.6660 mol/L

The minimum molarity of acetic acid in vinegar according to given standards is 0.6660 mol/L.

4 0
3 years ago
A sample of gas occupies 1.2 L at 12.0oC. Assuming pressure remains the same, what would be the volume (in L) of this gas at 67o
Levart [38]

Answer:

e.

6.7

hope it help

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4 0
2 years ago
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