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Mazyrski [523]
3 years ago
9

Find square root of 423.74 on two place of decimal ​

Chemistry
1 answer:
vekshin13 years ago
7 0
20.58 by using a calculator you can determine this, then round
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Write out a balanced, molecular equation, total ionic equation, and net ionic equation for each:
dangina [55]

Answer:

1:MgCO3 (s) + 2 NaNO3

2:agcl(s)+kno3(aq)

3:alcl3(aq)+h2(g)

4:NaNO3 + CO2 + H2O

(not sure abt last one)

6 0
3 years ago
Magnesium and oxygen balanced
11Alexandr11 [23.1K]
2Mg+ O₂= 2MgO
The charge of Mg is+2 and the charge of Oxygen is -2. 2 oxygen atoms will have a charge of -4 so the Mg atoms have to equal +4. A coefficient of 2 for the Mg atoms will balance it out 
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2 years ago
How to find electronegativity differences
lidiya [134]
To calculate electronegativity, start by going online to find an electronegativity table. You can then assess the quality of a bond between 2 atoms by looking up their electronegativities on the table and subtracting the smaller one from the larger one. If the difference is less than 0.5, the bond is nonpolar covalent.
8 0
2 years ago
For an ideal gas under constant volume, if the pressure is tripled, what happens to the Kelvin temperature?
EleoNora [17]

Answer:

Increase pressure 3X => increase Temperature 3X

Explanation:

Gay-Lussac Law => T ∝ P => T =kP => Empirical Relationship => T₁/P₁ = T₂/P₂  

=> T₂ = T₁P₂/P₁

Given P₂ = 3P₁ => T₂ = T₁(3P₁)/P₁ = 3T₁

6 0
2 years ago
10/24/14
vlabodo [156]

Answer:

d = Hydrogen and oxygen are being formed.

Explanation:

When current is passed through the water electrolysis take place.

Water is splitted into hydrogen and oxygen gas. Because of this formation bubbles are formed.

At cathode:

2H₂O + 2e⁻  → H₂ + 2OH⁻

Cathode is negatively charged and reduction take place on it.

At anode:

4OH⁻ → O₂ + 2H₂O + 4e⁻

Anode is positively charged and oxidation take place on it.

The over all reaction can be written as:

Chemical equation:

2H₂O  (electricity) →  2H₂  +  O₂

3 0
3 years ago
Read 2 more answers
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