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Tpy6a [65]
4 years ago
13

How did Moseley establish a more accurate periodic table?

Chemistry
2 answers:
Ket [755]4 years ago
7 0

Answer:

by arranging the elements according to atomic mass instead of atomic table

padilas [110]4 years ago
6 0

Answer:

1. By arranging the elements according to atomic mass instead of atomic number

Explanation:

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a sample of ammonia contains 9g hydrogen and 42g nitrogen. another sample contains 5g hydrogen .calculate the amount of nitrogen
balandron [24]
9 g of hydrogen - 42 g of nitrogen
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9x=42 \cdot 5 \\
9x=210 \\
x \approx 23.33

The mass of nitrogen in the second sample is 23.33 g.
4 0
4 years ago
Sugar dissolving in warm water is chemical or phyiscal change
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3 years ago
Jim drops an iron magnet during a chemistry lab experiment. He finds that it is no longer magnetic. What has happened in terms o
jok3333 [9.3K]

Answer: option A.

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4 years ago
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An element has an atomic number of 18 and an atomic mass of 40. The number of neutrons in the nucleus of an atom of this element
Vikentia [17]

Answer: 22 neutrons

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Then 40 - 18 = 22 neutrons

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3 years ago
Alcohols have more hydrogen bonding .<br>(True or False) ?!​
statuscvo [17]

Answer:

True

Explanation:

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