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zheka24 [161]
4 years ago
5

Based on the ionization energies of the alkali metals, which alkali metal would you expect to undergo the least exothermic react

ion with chlorine gas?
Express your answer as a chemical symbol.
Chemistry
1 answer:
ASHA 777 [7]4 years ago
7 0

Answer:

Li

Explanation:

  • In this case, "least exothermic" means that the correct answer is the least reactive of the alkali metals.
  • The lower the ionization energy is, the higher the reactivity of the alkali metal is.

With the above information in mind, and remembering that ionization energy tends to decrease as we go down the group in the periodic table, the correct answer is Li, as it has the highest ionization energy among the alkali metals.

You might be interested in
11. Write the balanced equation for the reaction of HC2H3O2 with Al(OH)3 to form H2O and AI(C2H3O2)3
TiliK225 [7]

Answer:

3HC2H3O2(aq) + Al(OH)3(aq) --> AI(C2H3O2)3(aq) + 3H2O(l)

Explanation:

HC2H3O2 is the chemical formula for Ethanoic acid which can be written as CH3COOH.

Hence, the balanced equation is stated as 3CH3COOH(aq) + Al(OH)3(aq) --> AI(CH3COO)3(aq) + 3H2O(l)

Acid + base → Salt + Water.

The equation is a neutralization reaction in which the acid, aqeous CH3COOH reacts completely with an appropriate amount of base, aqueous Al(OH)3 to produce salt, aqueous AI(CH3COO)3(aq)

and water, liquid H2O only.

During this reaction, the hydrogen ion, H+, from the Ethanoic acid is neutralized by the hydroxide ion, OH-, from the Aluminum hydroxide to form the water molecule, H2O and aluminium ethanoate.

Thus, it is called a neutralization reaction.

4 0
3 years ago
A liquid dietary supplement is packaged in 10-ml dropper containers to deliver 2000 international units of vitamin d3 in each dr
RoseWind [281]

Answer : 37 drops are delivered per milliliter of the solution.

Explanation :

The problem gives us lot of extra information.

We want to find the number of drops delivered in 1 milliliter here.

We have been given that, one drop of the solution delivers 0.027 mL of solution.

Let us use this as a conversion factor, \frac{1 drop}{0.027 mL}

Let us find number of drops in 1 mL using this conversion factor.

1 mL \times \frac{1 drop}{0.027mL} = 37.0 drops

Therefore we can say that 37 drops are delivered per milliliter of the solution.

7 0
4 years ago
What are the different elements found in naphthalene and how many atoms of each are found in the formula. C10H8
Alex777 [14]
Calculating the molar mass of naphthalene (C10H8)

molar mass = 10 x (12.01) + 8(1.008)

= 120.1 + 8.064 = 128.164 g/mol
8 0
4 years ago
What is the cost to drive to Los Angeles from San Francisco a distance of 405 miles if the cost of gasoline is $2.90 a gallon an
choli [55]

Answer: $46.98

Explanation:

The distance to drive to Los Angeles from San Francisco is 405 miles. Since the car get 25 miles per gallon of gas, for 405 miles, the car will use:

= 405/25 = 16.2 gallons

Since the cost of gasoline is $2.90 a gallon and the car will use 16.2 gallons. The cost will be:

= $2.90 × 16.2 gallons

= $46.98

7 0
3 years ago
Draw a physical model that shows the reaction of zinc metal and hydrochloric acid (hydrogen chloride).
Brilliant_brown [7]

Answer:

Zinc + Hydrochloric Acid Zinc Chloride and Hydrogen Gas

Zn + 2HCI - ZnCl2 + H2

Explanation:

Be sure to label your model to clearly show how you are representing the atoms

3 0
3 years ago
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