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myrzilka [38]
3 years ago
11

Group 1A element sodium combines with Group 7A element chlorine to form sodium chloride or table salt. Based on this information

, which expression is true about the electronegativity values of these two elements?
A) Na > Ci
B) Na < Ci
C) Na = Ci
D) We cannot make a prediction with data provided.
Chemistry
2 answers:
EastWind [94]3 years ago
8 0
A.<span>Na > Cl
is the right answer.</span>
nlexa [21]3 years ago
4 0
The correct answer in this question is option B. The electronegativity increases across a group. Chlorine ion has a higher electronegativity than the sodium ion. Chlorine need one electron to have a noble gas configuration that is why it gets one electron every chance it makes.
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madam [21]
H2O is one.
Ecuals water
7 0
3 years ago
Identify this reaction.
sp2606 [1]

C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O

is a combustion reaction

Explanation:

In a combustion reaction a chemical substance (usually organic substances) are reacted with oxygen to form the most stable oxides and heat.

CH₄ + 2 O₂ → CO₂ + 2 H₂O

In a double displacement reaction two compounds exchange elements.

AB + CD → AC + BD

In a decomposition reaction a compound is split into simpler substances.

AB →  A + B

In a synthesis reaction two elements are combined to form another compound. A + B → AB

In a single displacement reaction a compound exchange one of its elements.

AB + C → AC + B

Learn more about:

types of chemical reactions

brainly.com/question/314641

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8 0
2 years ago
HELP!!!!!! PLEASE!!!
mixas84 [53]

Answer:

C

Explanation:

sorry if im wrong!!

7 0
2 years ago
Given 6 moles of CuCl2, how many moles of AlCl, were made? SHOW the math below​
Anastasy [175]

Answer:

6 moles of CuCl₂  will produced 4 moles of  AlCl₃ .

Explanation:

Given data:

Moles of CuCl₂ = 6 mole

Moles of AlCl₃ produced = ?

Solution:

3CuCl₂ + 2Al → 2AlCl₃ + 3Cu

Now we will compare the moles of CuCl₂ with AlCl₃ .

            CuCl₂        :        AlCl₃

                3            :          2

                6           :         2/3 ×6 = 4 mol

So, 6 moles of CuCl₂  will produced 4 moles of  AlCl₃ .

6 0
3 years ago
What atoms make up a carboxyl group?
statuscvo [17]

Answer:

The answer to your question is below

Explanation:

Carboxyl group is the characteristic group of carboxylic acids.

It is composed by 1 atom of carbon, 2 atoms of oxygen and 1 atom of hydrogen.

Its structure is   - COOH

7 0
3 years ago
Read 2 more answers
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