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2 years ago

6

What is an atomic mass unit?

2 answers:

photoshop1234 [79]2 years ago

8 0

Answer:

a unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27 kg.

Explanation:

hope it helps, mark brainliest please

rjkz [21]2 years ago

3 0

Answer:

A unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27 kg.

Explanation:

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There is a photon with a frequency of 8x10^12 Hz. What is the energy of this<br> photon?

jarptica [38.1K]

Answer:

33.085476 meV ≈ 33 meV

Explanation:

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3 years ago

Calculate the mass of water produced when 7.26 g of butane reacts with excess oxygen

MaRussiya [10]

Answer:

11.3 g.

Explanation:

Hello there!

In this case, since the combustion of butane is:

$C_4H_{10}+\frac{13}{2} O_2\rightarrow 4CO_2+5H_2O$

Thus, since there is a 1:5 mole ratio between butane and water, we obtain the following mass of water:

$m_{H_2O}=7.26gC_4H_{10}*\frac{1molC_4H_{10}}{58.14gC_4H_{10}}*\frac{5molH_2O}{1molC_4H_{10}} *\frac{18.02gH_2O}{1molH_2O}$

Therefore, the resulting mass of water is:

$m_{H_2O}=11.3gH_2O$

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2 years ago

Identify the two main materials that can be found in the inner and outer core layers of the earth.

Mrrafil [7]

A. Iron D. Nickel hope this helps you!

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3 years ago

Construction crews sometimes use this reaction for welding underwater structures:

STALIN [3.7K]

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3 years ago

Read 2 more answers

The molecular weight of Calcium Carbonate, CaCO3, is 100.09g/mol

laila [671]

Answer:

True

Explanation:

Molecular mass of $CaCo_3$ :

Molecular mass of Ca + molevular mass of C + molecular mass of O × 3

40g + 12g + 16 × 3g

= 40g + 60 = 100g

Thus its true

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3 years ago