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sineoko [7]
3 years ago
10

How to atoms form a new substance

Chemistry
2 answers:
marin [14]3 years ago
6 0

Answer:

they join together

Explanation:

avanturin [10]3 years ago
5 0

Answer:

By changing the way they are arranged.

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What is the formula for water​
NARA [144]

Answer:

H2O

Explanation:

EASIEST FORMULA ON EARTH

3 0
3 years ago
calculate atomic weight of silver which has two isotopes with the following properties : silver-107 (106.91 amu, 51.84% natural
Julli [10]

Answer: The atomic weight of silver is 107.87 amu

Explanation:

Mass of isotope silver-107  = 106.91 amu

% abundance of isotope silver -107 = 51.84% = \frac{51.84}{100}=0.5184

Mass of isotope silver-109 = 108.90 amu

% abundance of isotope silver-109  = 48.16% = \frac{48.16}{100}=0.4816

Formula used for average atomic mass of an element :

\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})

A=\sum[(106.91\times 0.5184)+(108.90\times 0.4816)]

A=107.87amu

Thus atomic weight of silver is 107.87 amu

8 0
4 years ago
The following chemical reaction is balanced, but
GalinKa [24]
3Fe(s) + 4H2O(l) — 1Fe3O4(s) + 4H2(g)
6 0
3 years ago
Read 2 more answers
A student reported the following composition of an unknown mixture, 25% NH4Cl, 30% NaCl, and 50% SiO2. Assuming the student's ca
marin [14]
The three substances add up to 105% instead of 100%. Also, <span>the amount of either one of those compounds is more than according to the Stoichiometry of the reaction, meaning one of those compounds is in excess. </span>
8 0
3 years ago
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In which of the following sets do all species have the same number of protons?
Ipatiy [6.2K]

Among the given options, Option (D) that is O, O^2^-,O^2^+  will have the same number of protons. Hence option (D) is correct.

<h3>What are protons ?</h3>

A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron.

In option (D), All the three species (O, O^2^-,O^2^+ ) bears 8 protons but the number of electrons varies.

In any Ion, there will be no change in number of protons among the same atoms but number of electrons varies.

Therefore, Option (D)  has same atoms but different ions.

Hence, it has same number of protons. Thus the correct answer is option (D)

Learn more about Protons here ;

brainly.com/question/12535409

#SPJ1

5 0
2 years ago
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