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Anuta_ua [19.1K]
3 years ago
12

How objects with different masses and volumes have the same density?​

Chemistry
1 answer:
AURORKA [14]3 years ago
6 0

Answer:

mass and volume are independent. Two objects with the same volume can have different masses hence they can have different densities

Explanation:

The mass of atoms their size and how they are arranged determine the density

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Place the following atmospheric gases in order of abundance, from highest to lowest.
Step2247 [10]

Explanation:

The percentage abundance of the following gases in the atmosphere is given as;

Carbon dioxide = 0.04 percent

Other trace gases =  about a tenth of one percent of the atmosphere.

Argon = 0.93 percent

Oxygen = 21 percent

Nitrogen = 78 percent

Te order from highest to lowest is given as;

Nitrogen

Oxygen

Argon

Carbon dioxide

Other trace gases

8 0
3 years ago
Determine the number of constitutional isomers for Hexane and draw the structure for Hexane?​
Akimi4 [234]

Answer:

MRCORRECT has answered the question

Explanation:

five isomers

"The five isomers of hexane are: hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, and 2,3-dimethylbutane. They are constitutional isomers because they each contain exactly the same number and type of atoms, in this case, six carbons and 14 hydrogens and no other atoms.

6 0
4 years ago
A pure sample contains only nitrogen and oxygen atoms. If the sample is 30.4% nitrogen, by weight, what is the empirical formula
andrew-mc [135]

Answer: 2. NO_2

Explanation:

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

a) If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of N = 30.4 g

Mass of O= 69.6 g

Step 1 : convert given masses into moles

Moles of N=\frac{\text{ given mass of N}}{\text{ molar mass of N}}= \frac{30.4g}{14g/mole}=2.2moles

Moles of O=\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{69.6g}{16g/mole}=4.4moles

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

For N = \frac{2.2}{2.2}=1

For O =\frac{4.4}{2.2}=2

The ratio of N: O = 1; 2

Hence the empirical formula is NO_2

8 0
3 years ago
A common recipe is to make 3%(wt/vol) HCl in ethanol. HCl has a formula weight of 36.46 grams per mole. If the stock solution of
MrRissso [65]

Answer: 205.70 mL of acid solution is needed

Explanation: Please see the attachments below

8 0
3 years ago
What are four basics states of matter
vlada-n [284]
1.liquid 
2.solid
3.gas
4.plasma
4 0
3 years ago
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