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mihalych1998 [28]
4 years ago
10

What does a chemical formula like Na2CO3 tells us?

Chemistry
1 answer:
USPshnik [31]4 years ago
8 0

It has: 2 atoms of sodium (Na) 1 atom of Carbon 3 atoms of Oxygen bound together with ionic and polar-covalent bonds

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Determine if the following compounds are likely to have ionic or covalent bonds. a. Magnesium oxide (MgO) _______________ b. Str
nika2105 [10]

Answer:

The answer to your question is below

Explanation:

Ionic bond is a kind of bond in which a metal attaches to a nonmetal. Also we know that a molecule has ionic bonding if the electronegativity is higher than 1.7.

                    Kind of elements         Difference of electronegativity     Bond

a) MgO         Metal - Nonmetal                3.44 -  1.31 = 2.13                     Ionic

b) SrCl₂        Metal -Nonmetal                  3.16 - 0.95 = 2.21                    Ionic

c) O₃             Nonmetal- Nonmetal          3.44 - 3.44 = 0                      Covalent

d) CH₄O       Nonmetal-Nonmetal           3.44 - 2.55 = 0.89                Covalent

   Carbon, Hydrogen and oxygen are nonmetals

2) Silver coins can conduct electricity.

4 0
3 years ago
The temperature of a sample of gas in a steel
Snezhnost [94]

Answer:

P_2=51.7kPa

Explanation:

Hello,

In this case, we apply the Gay-Lussac's law which allows us to understand the pressure-temperature behavior via a directly proportional relationship:

\frac{P_1}{T_1}=\frac{P_2}{T_2}

Thus, since we are asked to compute the final pressure we solve for it in the previous formula, considering the temperature in absolute Kelvin units:

P_2=\frac{P_1T_2}{T_1}=\frac{30.0kPa*(25.0+273)K}{(-100.0+273)K} \\\\P_2=51.7kPa

Best regards.

3 0
3 years ago
Read 2 more answers
TIME REMAINING
jek_recluse [69]

Answer:

Liquid

Explanation:

had this ln a test and got it right

6 0
3 years ago
why would you expect to see similar rocks and rock structures on two land masses that were connected at one time?
tangare [24]
If they were connected at one time than you would expect to find similar rock structures because they eroded, weathered, and we’re formed most likely at the same time out of the same material. So basically since they were near each other they were under the same or similar conditions.
3 0
3 years ago
What volume of 0.30 mol/L H2SO4(aq) is required to neutralize 50.0 mL of 0.60 mol/L NaOH (aq) ?
SIZIF [17.4K]

Explanation:

here's the answer to your question

3 0
3 years ago
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