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Romashka-Z-Leto [24]
3 years ago
14

Imagine you are about to investigate what happens when sodium and potassium are mixed together. Before you begin your experiment

, a peer tells you this reaction is impossible, as both elements will not react to chemically bond to one another. Type a paragraph statement explaining why this is true. Be sure to relate this cause to chemical bonding and the elements’ positions on the periodic table.​
Chemistry
1 answer:
inessss [21]3 years ago
6 0

Explanation:

Potassium and Sodium are both metals on the periodic table. Both elements are found on the s-block of the table. Therefore, it is not possible for both of them to combine to form a compound.

For a compound to form two elements must combine in a definite order to given  single product.

The combination is facilitated by a loss, gain or sharing of electrons between two species. This leads to an attraction between the combining species.

Both Sodium and potassium would prefer to lose electrons and there is no reason for them to combine to form a compound.

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The accepted length of a steel pipe is 6.7 m. Calculate the percent error of each of these measurements.
disa [49]

Answer:

a. 1.49%

b. -8.95%

c. 0%

d. -1.49%

Explanation:

a. Actual length = 6.7 m

Measured length = 6.8 m

% error = (Measured length - Actual Length)/Actual Length * 100

= (6.8-6.7)/6.7 * 100 = 0.1/6.7 * 100 = 1.49%

b. Actual length = 6.7 m

Measured length = 6.1 m

% error = (Measured length - Actual Length)/Actual Length * 100

= (6.1-6.7)/6.7 * 100 = -0.6/6.7 * 100 = -8.95%

c. Actual length = 6.7 m

Measured length = 6.7 m

% error = (Measured length - Actual Length)/Actual Length * 100

= (6.7-6.7)/6.7 * 100 = 0.1/6.7 * 100 = 0%

a. Actual length = 6.7 m

Measured length = 6.6 m

% error = (Measured length - Actual Length)/Actual Length * 100

= (6.6-6.7)/6.7 * 100 = -0.1/6.7 * 100 = -1.49%

4 0
3 years ago
Determine if the following two structures are identical, isomers, or unrelated? OH O CH3CHCH2CH3 CH3CH2CCH3
user100 [1]

Answer:

I think they are <u>unrelated.</u>

Explanation:

6 0
2 years ago
Read 2 more answers
Uranium-235 decays to form lead-207. The half-life of uranium-235 is 704,000,000 years. What is the approximate age of an igneou
Strike441 [17]

Answer:

The approximate age of the igneous rock is 7.042\times 10^{6} years.

Explanation:

Chemically speaking, the Uranium-235 decays to form Lead-207 throughout time. All isotopes decay exponentially by means of the following model:

m(t) = m_{o}\cdot e^{-\frac{t}{\tau} } (1)

In addition, we can determine the time constant of the former isotope in terms of its half life, that is:

\tau = \frac{t_{1/2}}{\ln 2} (2)

Where:

m_{o} - Initial mass of Uranium-235, in atoms.

m(t) - Current mass of Uranium-235, in atoms.

\tau - TIme constant, in years.

t_{1/2} - Half-life of Uranium-235, in years.

Please remind that a 1 : 1 ratio of Uranium-235 to Lead-207 atoms means that current mass of Uranium-235 is a half of its initial mass. If we know that m(t) = 0.5\cdot m_{o} and t_{1/2} = 7.04\times 10^{8}\,yr, then the approximate age of the igneous rock is:

\tau = \frac{7.04\times 10^{8}\,yr}{\ln 2}

\tau \approx 1.016\times 10^{9}\,yr

t = -\tau \cdot  \ln \left(\frac{m(t)}{m_{o}} \right)

t = -(1.016\times 10^{9}\,yr)\cdot \ln \frac{1}{2}

t \approx 7.042\times 10^{6}\,yr

The approximate age of the igneous rock is 7.042\times 10^{6} years.

5 0
3 years ago
Suppose 50.0g of silver nitrate is reacted with 50g of hydrochloric acid producing silver chloride and a mixture of other produc
docker41 [41]

Answer:

53.6 grams of silver chloride was produced.

Explanation:

AgNO_3+HCl+\rightarrow AgCl+HNO_3

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

Mass of silver nitrate = 50.0 g

Mass of hydrogen chloride = 50.0 g

Mass of silver chloride = x

Mass of  nitric acid = 46.4 g

Mass of silver nitrate + Mass of hydrogen chloride =

                             Mass of silver chloride + Mass of  nitric acid

[te]50.0 g+50.0 g=x+46.4 g[/tex]

x=50.0 g+50.0 g - 46.4 g = 53.6 g

53.6 grams of silver chloride was produced.

8 0
3 years ago
Which of the following statements are correct about the chemical reaction?
kvv77 [185]
The correct answer for the question that is being presented above is this one: "They are both balanced chemical equations." The <span>statement that is correct about the chemical reaction is that both chemical reaction are balanced chemical equations.</span>
8 0
3 years ago
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