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Anna007 [38]
3 years ago
15

There is a "short-cut" to determining the number of valence electrons. how can you determine the number of valence electrons by

just looking at the periodic table?
Chemistry
1 answer:
Illusion [34]3 years ago
4 0
The number of valence electrons of elements in a group is the same as the group number
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What's the chemical equation for the carbon dioxide bubbles in a homemade lava lamp?
julsineya [31]

Answer:

C₆H₈O₇+ 3NaHCO₃ --› Na₃C₆H₅O₇ + 3CO2 + 3H₂O

Explanation:

The reaction occuring in lava lamp is acid base reaction.

When you drop tablet into water the citric acid reacts with sodium bicarbonate and forms water, a salt, and bubbles of carbon dioxide gas.

6 0
3 years ago
Read 2 more answers
What is the pOH value of 0.0000877 M HCL
ki77a [65]

Answer:

pOH=9.9

Explanation:

pH=-log[H+]= -log[0.0000877]

=4.06

pOH+ pH=14

pOH=14-4.06= 9.91

7 0
3 years ago
Which of the following results from acid deposition? View Available Hint(s) Which of the following results from acid deposition?
ASHA 777 [7]

Answer:

Objects made of stone, like marble headstones, are worn away.

Explanation:

Acid deposition on earth is mostly as a result of acid rain. Acid rain forms which oxides of non-metals such as nitrogen and carbon dissolves in rain water to produce weak acid.

This weak acid that is produced easily wears away materials made up of marble and other sculptures. The most active of the acid is weak carbonic acid produced by dissolution of carbon dioxide in rain water.

6 0
3 years ago
If a solution has a [H+] of 9.3x10-11, what is the pH?
Rina8888 [55]

Answer:

<h2>10.03</h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

From the question we have

ph =  -  log(9.3 \times  {10}^{ - 11} )  \\  = 10.0315...

We have the final answer as

<h3>10.03</h3>

Hope this helps you

4 0
3 years ago
Carbon 14 is an example of blank dating
Brilliant_brown [7]

Answer:

Carbon

Explanation:

It's in the name lol

6 0
3 years ago
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