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4 years ago

What is the volume of a rectangular object whose dimensions are 5.54 cm, 10.6 cm, and 199 cm?

Chemistry

2 answers:

Brilliant_brown [7]4 years ago

7 0

The answer is D 11,700

iVinArrow [24]4 years ago

4 0

<u>Answer:</u> The correct answer is Option d.

<u>Explanation:</u>

To calculate the volume of cuboid, we use the equation:

$V=lbh$

where,

V = volume of cuboid

l = length of cuboid = 5.54 cm

b = breadth of cuboid = 10.6 cm

h = height of cuboid = 199 cm

Putting values in above equation, we get:

$V=5.54\times 10.6\times 199=11686.076cm^3\approx 11,700cm^3$

Hence, the correct answer is Option d.

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Paladinen [302]

Answer:

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Explanation:

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4 years ago

Tin has many possible isotopes. Three of these isotopes are 116sn, 120sn, and 126sn. What is the mass number of each? How many p

Aneli [31]

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Here, atomic number is equal to number of protons and number of electrons, it is denoted by symbol Z thus,

$Z=n_{e}=n_{p}$

and, mass number is equal to sum of number of protons and neutrons, it is denoted by symbol A thus,

$A=n_{p}+n_{n}$

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Since, $Z=n_{e}=n_{p}$ thus, number of protons and electrons will be 50.

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$A=n_{p}+n_{n}$

Or,

$116=50+n_{n}$

Or,

$n_{n}=116-50=66$

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$n_{n}=120-50=70$

For Sn-126,

$n_{n}=126-50=76$

Therefore, mass number, number of protons, electrons and neutrons in all three isotopes are:

Sn-116:

Mass number= 116

Protons=50

neutrons=66

electrons=50

Sn-120:

Protons=50

neutrons=70

electrons=50

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Protons=50

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4 years ago

Define the term 'structural isomerism'.

emmasim [6.3K]

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Explanation:

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3 years ago

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Makovka662 [10]

Answer:

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3 years ago