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Murrr4er [49]
3 years ago
13

What is the mass number of oxygen atom with 7 neutrons?

Chemistry
1 answer:
kirill [66]3 years ago
7 0
Oxygen has 8 protons
8 + 7 = 15
This isoptope is O-15
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Need help with balancing equations!
shusha [124]

Answer:

Fe2O3 + 3CO → 2Fe + 3CO2

Explanation:

the numbers in front are the numbers you need

4 0
2 years ago
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What is difference in reaction of O2 with metal and nonmetal?​
aksik [14]

Answer:

Metal more reactive than non metal

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3 years ago
how much hydrogen will be released during the interaction of potassium weighing 8 grams with hydrochloric acid
krek1111 [17]

Answer:

With an understanding of the ideal gas laws, it is now possible to apply these principles to chemical stoichiometry problems. For example, zinc metal and hydrochloric acid (hydrogen chloride dissolved in water) react to form zinc (II) chloride and hydrogen gas according to the equation shown below:

2 HCl (aq) + Zn (s) → ZnCl2 (aq) + H2 (g)

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4 0
2 years ago
How many moles are in 525 g of ammonia, NH3?<br> 8940.75 M<br> 0.03 M<br> 30.83 M
victus00 [196]

Answer:

30.83 M

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. how many lone pairs of electrons are present in the lewis structure of calcium sulfide?
miv72 [106K]
Answer:
            <u>Four</u>

Explanation:
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                                   Ca    →    Ca²⁺  +  2 e⁻

These two electrons are accepte by Sulfur as,

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So, before accepting 2 electrons S was having six valence electrons, after accepting two electrons from Ca it has 8 electrons which are present in four pairs as shown below,

7 0
3 years ago
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