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Stels [109]
3 years ago
5

In what order did mendeleev arrange the elements in his periodic table?

Chemistry
1 answer:
irina1246 [14]3 years ago
3 0
He realized that the physical and chemical properties of elements<span> were related to their atomic mass in a '</span>periodic<span>' way, and </span>arranged<span> them so that groups of </span>elements<span> with similar properties fell into vertical columns in </span>his table<span>.
</span><span>
</span>
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Makovka662 [10]

Answer:

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Explanation:

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What is an atomic reaction​
castortr0y [4]

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<u>Explanation:</u>

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8 0
3 years ago
What is the molar mass of BaBr2?<br><br>multiple choice on the picture
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3 0
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How many moles are in 20g of potassium (K)?
otez555 [7]

Explanation:

Hi for this one u just need to remember and use the equation.

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then u find mr of potassium which is 39.1.

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\frac{20}{39.1}

you get the answer as 0.5115 write ur answer to 3 significant figures which will be 0.512 moles .

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7 0
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Which of the following are examples of physical change? Copper oxidizing Iron rusting Carbon dioxide sublimating Water evaporati
kari74 [83]
Carbon dioxide sublimation
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