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Gennadij [26K]
3 years ago
8

If 2 objects have the same volume of 10cm3 and object A has a mass of 2 grams and object B has a mass of 4 grams, how do their d

ensities relate to one another?
I need a step by step explanation also. I don’t fully understand the subject. I also need an answer ASAP. This is due tomorrow and my teacher will not give me extra time even though I was excused.
Chemistry
2 answers:
siniylev [52]3 years ago
7 0

Answer:

density of object B is double that density of object A

Explanation:

Density is calculated as follows:

density = mass / volume

then,

density of object A = 2 grams / 10 cm³ = 0.2 g/cm³

density of object B = 4 grams / 10 cm³ = 0.4 g/cm³

The relation between them is:

density of object B / density of object A  =  0.4 / 0.2 = 2

Mrac [35]3 years ago
5 0

Explanation:

density =mass / volume

now, when the mass of an object increases the volume of the object will decrease when density is kept constant.

so if an A object has a higher mass than object Bs mass which has same density, than object B will have higher volume than object A.

in other words mass and volume is indirectly proportional when density is kept constant

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We can write the balanced equation for the synthesis reaction as 
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We use the molar masses of hydrogen chloride gas HCl and hydrogen gas H2 to calculate for the mass of hydrogen gas H2 needed:
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We also use the molar masses of hydrogen chloride gas HCl and chlorine gas CL2 to calculate for the mass of hydrogen gas H2:
     mass of CL2 = 146.4 g HCl *(1 mol HCl / 36.46 g HCl) * (1 mol Cl2 / 2 mol HCl) *
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Therefore, we need 4.056 grams of hydrogen gas and 142.4 grams of chlorine gas to produce 146.4 grams of hydrogen chloride gas.
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