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lina2011 [118]
3 years ago
8

Definition: this is information from an experiment that can be assigned a number or a quantity and can often be used to construc

t a graph.
please answer correctly
Chemistry
2 answers:
Contact [7]3 years ago
8 0
The answer is “data”
Wewaii [24]3 years ago
6 0

Answer:

Quantitative Data

Explanation:

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Why is rusted iron an example of an oxidation–reduction reaction? electrons are exchanged?
rodikova [14]
Electrons are exchanged, yes.
7 0
3 years ago
Read 2 more answers
PLEASE HELP BRAONLIST ANSWER
dem82 [27]

Explanation:

decrease since the photons have to travel through a cloudier substance

6 0
2 years ago
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
How many electrons does (Al) have to give up to achieve a noble gas?
Andre45 [30]

Aluminium has 3 valance electrons in its outer shell. This means that it would need to give up 3 electrons to achieve a full octet.

5 0
3 years ago
A military jet cruising at an altitude of 12.0kmand speed of 1900./kmh burns fuel at the rate of 74.4/Lmin. How would you calcul
anygoal [31]

Answer: amount = 2466.95L

Explanation:

given that the speed is = 1900./kmh i.e. 1hr/900km

distance = 1050km

the fuel burns at a rate of 74.4 L/min

therefore the amount of fuel that the jet consumes on a 1050.km becomes;

total fuel used = time × fuel burning rate

where time = distance / speed

∴ total fuel used (consumed) = time × fuel burning rate

total fuel consumed = (1050km × 1hr/1900km) × (60min/ 1hr × 74.4L/1min)

total fuel consumed = 2466.95L

6 0
3 years ago
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