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Mamont248 [21]
3 years ago
15

Which element forms a chloride of the type XCl2

Chemistry
1 answer:
Nat2105 [25]3 years ago
8 0

Explanation:

Element X forms a chloride with the formula XCl 2 , which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as. (a) Na (b) Mg (c) Al (d) Si. the answer is Mg .

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What factor affects the solubility of all solutes, whether solid, liquid, and gaseous?
ICE Princess25 [194]

Answer:

temperature

Explanation:

Temperature is the only factor that affects the solubility of all solutes whether they are solid, liquid or gaseous.

Solubility of solutes is temperature dependent.

When one substance dissolves in another, they are said to be soluble in it.

Pressure as a factor only affects the dissolution of gases.

Volume and number of moles do not affect solubility

3 0
3 years ago
A major component of gasoline is octane. When liquid octane is burned in air it reacts with oxygen gas to produce carbon dioxide
irakobra [83]

Answer:

0.267 mol

Explanation:

The <em>unbalanced equation</em> for the reaction that takes place is:

  • C₈H₁₈ + O₂ → H₂O + CO₂

Once we balance it we're left with:

  • 2C₈H₁₈ + 25O₂ → 18H₂O + 16CO₂

Using the <em>stoichiometric ratio </em>of water and octane from the balanced reaction, we can <u>convert mol of water into mol of octane</u>:

  • 2.40 mol H₂O * \frac{2molC_8H_{18}}{18molH_2O} = 0.267 mol C₈H₁₈

Thus 0.267 moles of octane are needed to produce 2.40 mol of water.

5 0
3 years ago
Power plants release sulfur dioxide and nitrogen oxides into the atmosphere where they combine with water vapor to form _____.
Ad libitum [116K]

<em>Answer:</em>

  • The correct option is acid precipitation

<em>Explanation:</em>

  • When sulfur dioxide react with water vapors, they form sulphuric acid.
  • Similarly, when NOx reacts with water vapors to form HNO2 and HNO3.
  • So these acid cause the rain water into acidic rain.

4 0
4 years ago
Read 2 more answers
2. If 300.0 mL of a 2.5 M solution of nitric acid is added to 500.0 mL of water, what is the molarity of the
Afina-wow [57]

Answer:To calculate the Molarity of a 70 wt. % Nitric Acid the number of moles of HNO 3 present in 1 liter of acid needs to be calculated. Knowing the density of the acid to be 1.413 g/mL, we can calculate the weight of 1 L of 70% HNO 3 to be 1413

Explanation:

8 0
3 years ago
Consider the following reaction between mercury(II) chloride and oxalate ion.
natali 33 [55]

Answer:

a) rate law =  k[HgCl₂][C₂O₄²⁻]²

b) K = 8.67 * 10⁻⁵M⁻²s⁻¹

c) rate = 2.55 * 10⁻⁵Ms⁻¹

Explanation:

a) From the given data, rate law is given as: rate = k[HgCl₂]ᵃ[C₂O₄²⁻]ᵇ

Note: Further calculations and explanations are found in the attachment below

6 0
3 years ago
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