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gayaneshka [121]
3 years ago
11

Water is not found on the Periodic Table of Elements because water is:

Chemistry
2 answers:
vovangra [49]3 years ago
7 0
Water is a compound. H2O
faltersainse [42]3 years ago
6 0

Answer:

a compound. hydrogen and oxygen

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Magnesium fluoride contains only magnesium and fluorine. what is the formula for this compound
Phantasy [73]
The answer for this question is MgF2
6 0
3 years ago
Given the following balanced chemical equation:
Fudgin [204]

Answer:

Mass of Ca(OH)₂ required  = 0.09 g  

Explanation:

Given data:

Volume of HNO₃ = 25 mL (25/1000 = 0.025 L)

Molarity of HNO₃ = 0.100 M

Mass of Ca(OH)₂ required  =  ?

Solution:

Chemical equation;

Ca(OH)₂ + 2HNO₃   →      Ca(NO)₃ + 2H₂O

Number of moles of HNO₃:

Molarity = number of moles / volume in L

0.100 M = number of moles / 0.025 L

Number of moles = 0.100 M ×0.025 L

Number of moles = 0.0025 mol

Now we will compare the moles of Ca(OH)₂  with HNO₃ from balance chemical equation.

                   HNO₃           :           Ca(OH)₂    

                       2               :              1

                  0.0025         :            1/2×0.0025 = 0.00125

Mass of Ca(OH)₂:    

Mass = number of moles × molar mass

Mass =   0.00125 mol × 74.1 g/mol

Mass = 0.09 g    

7 0
4 years ago
What is the concentration of hydrogen ion with the poh of 11.5
ankoles [38]
PH +pOH = 14

 (14  - 11.5) = 2.5 (the ph is 2.5)

NOW, Ph = -lg (H*)

apply the formula

6 0
3 years ago
What reaction would the chemical equation 2H2O --> 2H2+O2 represent? A) Replacement Of Water B) Combustion of water c) decomp
aniked [119]

Answer;

C. Decomposition of water

Explanation;

A decomposition reaction occurs when one reactant breaks down into two or more products.This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

The equation for the decomposition of water; 2H2O --> 2H2+O2


7 0
4 years ago
Read 2 more answers
Please help me thank u !​
konstantin123 [22]
You should just try your best out what u think it will be okay ! I don’t know the answer I’m sorry
8 0
3 years ago
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