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lorasvet [3.4K]
3 years ago
10

1 punto Kelvin, es la unidad de medida de: Intensidad o luminosa O Temperatura termodinámica O Corriente eléctrica O Cantidad de

sustancia​
Chemistry
1 answer:
Len [333]3 years ago
7 0

Answer:

sorry i donntttt understand make it clear

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Which best includes elements with the most similar chemical properties?
sasho [114]
Usually, elements with more similar properties share the same column on the periodic table.
Therefore, if you look at the periodic table, you can see that Oxygen, Sulfur, and Selenium all share the same column. Therefore, they all have similar properties

Answer: #3 ( O, S, Se )

Hope this helped!!! :D
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3 years ago
Why an aspirin tablet works faster if it is crushed rather than swallowed whole?​
givi [52]

Answer: because the tablet is already crushed and is easy for the organism to absorb instead of having to break it down

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What pieces of information do we need in order to calculate the percent yield?
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The maximum amount possible of product and the amount experimentally recovered

Explanation:

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All animals need oxygen gas (O2) for their primary cellular-level functioning. Inside the cell, O2 is split apart into oxygen at
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Answer:

H₂O (water)

Explanation:

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The oxygen molecule is split in their two atoms of O. The element which has 1 proton and 1 electron is the hydrogen (H). So, when hydrogen reacts with oxygen, they form water (H₂O).

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3 years ago
What is the mass in grams of one mole of He?
Step2247 [10]

Answer:

One gram helium gas is equal to the 4.002602 g/mole

Explanation:

Helium gas is a gas or chemical element. The symbol of helium gas is He and the atomic number of this gas is 2. This gas is colorless, odorless, and tasteless. It is a non-toxic gas. It is found in the periodic table in the first place.

Helium is a very lightest gas and very abundant in nature in the universe. It is present in the universe around 24 percent. Helium is also called by another name that titan of sun. This is detected by the yellow line. The liquid form of helium gas is called cryogenics. This helium gas is used in lifting balloons and airplanes.

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3 years ago
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