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DENIUS [597]
3 years ago
11

How does the periodic table help in predicting the formula of a stable ionic compound?

Chemistry
2 answers:
sukhopar [10]3 years ago
7 0

Answer:

b

Explanation:

marshall27 [118]3 years ago
3 0
A. This is a FALSE statement because Metals in Group 1 form cations with a +1 charge and not -1. 

B. This is a TRUE statement. 

C. This is a FALSE statement because metals do not form anions i.e. negatively charged ions but form cations i.e. positively charged ions. 

D. This is a FALSE statement because metals do not form anions i.e. negatively charged ions but form cations i.e. positively charged ions. 
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What is the name and formula of the compound formed between lithium and sulfite?
dmitriy555 [2]

Answer:

d)Lithium sulfite, Li2SO3

Explanation:

LITHIUM is an element in the group 1 (alkali metals) of the periodic table, with a charge of +1. On the other hand, SULFITE is a radical with the chemical formula (SO3²-). It is made up of sulfur and oxygen atoms.

According to this question, lithium element and sulfite radical combines to form a compound called LITHIUM SULFITE. From the chemical formula of these individual constituents, the chemical formula of the compound formed will go this: Li2SO3. This means that it takes 2 atoms of Li+ to combine with SO3²- in order to form a neutral compound.

6 0
2 years ago
In an electrical circuit, the presence of a resistor limits the current and prevents
bearhunter [10]
True I believe because when the current circuit is at its limit it will be damaged
6 0
3 years ago
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If an atom has 7 valence electrons, what will its charge be when it becomes an ion?
murzikaleks [220]

Answer:

Well, he needs to take one more electron to have a stable structure. And by doing that the atom will have more electrons than protons and will turn into a negative ion.

4 0
3 years ago
1. When the following oxidation-reduction reaction in acidic solution is balanced, what is the
Bogdan [553]

Answer:

2Rb(s) + Sr^+(aq) → 2Rb^+ (aq) + Sr(s)

Explanation:

Rubidium has a more negative reduction potential (-2.98 V) compared to strontium (-2.89 V).

Hence, in a redox reaction involving rubidium and strontium, rubidium will be oxidized while strontium is reduced.

The balanced redox reaction equation is obtained from;

Oxidation half equation;

2Rb(s) ---->2Rb^+(aq) + 2e

Reduction half equation;

Sr^2+(aq) + 2e ----> Sr(s)

Overall reaction equation;

2Rb(s) + Sr^+(aq) → 2Rb^+ (aq) + Sr(s)

5 0
2 years ago
How would you classify the following events?
ICE Princess25 [194]

Answer:  Event 1 is an example of a physical change and Event 2 is an example of a chemical change.

Explanation: Physical change is one in which there is no change in chemical composition of the substance. There is only a change in phase change.

Chemical change is a change in which there is a change in chemical composition and there might or might not be a phase change.

On Boiling, the water molecules remain bonded in the same form and only covert from liquid to gaseous form, thus is a physical change.

On Rusting of iron nail, the iron changes to iron oxide by combining with oxygen, there is a rearrangement of atoms and thus is a chemical change.

Fe+O_2+H_2O\rightarrow Fe_2O_3.xH_2O

8 0
3 years ago
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