3 years ago

Carbon-12, Carbon-13 and Carbon-14 are examples of _______________ of the carbon atom.

Chemistry

2 answers:

Assoli18 [71]3 years ago

6 0

Carbon-12, Carbon-13 and Carbon-14 are examples of isotopes of the carbon atom.

goldenfox [79]3 years ago

6 0

Isotopes - forms of the same element that contain a different amount of neutrons in their nuclei

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You burn a 15g jellybean to warm 50 mL of water, which increases the temperature of the water 25 °C. How many calories of heat a

Juli2301 [7.4K]

Answer:

$Q = 375\,cal$

Explanation:

The quantity of heat transfered from the jellybean to the water is:

$Q = \rho\cdot V \cdot c\cdot \Delta T$

$Q = \left(1\,\frac{g}{cm^{3}}\right)\cdot (15\,cm^{3})\cdot \left(1\,\frac{cal}{g\cdot ^{\circ} C} \right)\cdot (25\,^{\circ}C )$

$Q = 375\,cal$

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A4 g sugar cube (Sucrose : C 12 H 22 O 11 ) is dissolved in a 350 ml teacup of 80 C water. What is the percent composition by ma

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%Sgr = 1% (1 sig.fig.)

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3 years ago

10g of sugar is dissolved by water to make 200g of solution of sugar. What is the percent by mass of the solution?

Scorpion4ik [409]

Explanation:

In sugar solution 200 g has sugar 10 g

In sugar solution 100 g has sugar 10/200 × 100

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