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artcher [175]
3 years ago
8

In 2.23x10^24 atoms of k2co3

Chemistry
1 answer:
xeze [42]3 years ago
4 0

Answer:use a calculator

Explanation:

It helps

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Who discovered atoms?<br>​
Kay [80]

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❖ J.J Thomson was the first to discover atoms. He discovered atoms in 1897.

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5 0
3 years ago
What is the 250 green numbers on the side
natali 33 [55]

Answer:

1, 2, 3, ..., 250

Explanation:

Whatever you mean.

8 0
3 years ago
Does the mineral cobalt have cleavage or fracture?.
marishachu [46]
I'm pretty sure that it's fracture, Not sure though
4 0
3 years ago
H-1
bonufazy [111]
Answer = B = Neutrons and Mass Number

Isotopes 
are defined as those atoms which have same atomic number but different atomic masses.

Atomic mass is basically the number of protons and neutrons present in an atom.

Atomic number is the number of protons present in an atom.

So, in isotopes the number of protons are same but the number of neutrons vary due to which atomic masses also vary.
In given three isotopes, all have same number of protons but different number of neutrons.
i.e.
H-1 = 1 P + 0 N = 1 u (Proton)
H-2 = 1 P + 1 N = 2 u (Deuterium)
H-3 = 1 P + 2 N = 3 u (Tritium)

Hence, it is clear that the number after H shows a change in number of neutrons and mass number.

7 0
3 years ago
Read 2 more answers
Based on location in the periodic table, which element has chemical properties that are most similar to iodine
Ymorist [56]

Based on location in the periodic table, fluorine (F) has chemical properties that are most similar to iodine.

In the periodic table, elements are classified in groups and periods. The elements in the same group are chemically similar and they have the same number of valence electrons. Elements in the same period have the same highest energy level.

Hence, when looking for an element that is most chemically similar to iodine, we have to consider the element that is in the same group with iodine.

Both fluorine are iodine are both in group 17 hence, fluorine is most chemically similar to iodine.

Learn more: brainly.com/question/11155928

3 0
3 years ago
Read 2 more answers
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