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Ann [662]
2 years ago
6

Completa la siguiente tabla, que indica las temperaturas registradas en un día para algunas ciudades del mundo.

Chemistry
1 answer:
Solnce55 [7]2 years ago
7 0

Answer:

50Explanation:

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Why is radioactive dating important when approximating the age of earth?
Furkat [3]

Answer:

So, we rely on radiometric dating to calculate their ages. Radiometric dating, or radioactive dating as it is sometimes called, is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes.

Explanation:

radiometric dating is a very accurate way to date the Earth.We know it is accurate because radiometric dating is based on the radioactive decay of unstable isotopes. When an unstable Uranium (U) isotope decays, it turns into an isotope of the element Lead (Pb).

6 0
2 years ago
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What name is used to describe the H-N-H group?
mamaluj [8]

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an amine group

Explanation:

Hope that helped :)

5 0
2 years ago
The reading on a speedometer represents the average velocity of the car. True False
Sedbober [7]
Answer: False. Hope this helps!!
7 0
2 years ago
Calculate the mass in grams of each of the following amounts: 1.002 mol of chromium 4.08 x 10-8 mol of neon
Pepsi [2]

Answer:

Mass_{chromium}=52.1\ g

Mass_{neon}=8.23\times 10^{-7}\ g

Explanation:

<u>Calculation of the mass of chromium as:- </u>

Moles = 1.002 moles

Molar mass of chromium = 51.9961 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

1.002\ mol= \frac{Mass}{51.9961\ g/mol}

Mass_{chromium}=1.002\times 51.9961\ g = 52.1\ g

<u>Calculation of the mass of neon as:- </u>

Moles = 4.08\times 10^{-8} moles

Molar mass of neon = 20.1797 g/mol

Thus,

1.002\ mol= \frac{Mass}{20.1797\ g/mol}

Mass_{neon}=4.08\times 10^{-8}\times 20.1797\ g = 8.23\times 10^{-7}\ g

6 0
2 years ago
A graduated cylinder is filled to 10.0 mL with water and a piece of granite is placed in the cylinder displacing the level to 23
Rus_ich [418]

Answer:

13.7 cubic centimeters

Explanation:

23.7-10=13.7mL

8 0
2 years ago
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