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WARRIOR [948]
3 years ago
5

Given the chemical equation, CaCl2 + Na → NaCl + Ca. The best description of this equation is which of these?

Chemistry
2 answers:
SpyIntel [72]3 years ago
4 0

Answer:

An unbalanced single replacement reaction

kakasveta [241]3 years ago
3 0

Answer:

C) An unbalanced single replacement reaction.

Explanation:

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Oh, no! You just spilled 85.00 mL of 1.500 M sulfuric acid on your lab bench and need to clean it up immediately! Right next to
vredina [299]

Explanation:

We will balance equation which describes the reaction between sulfuric acid and sodium bicarbonate: as follows.

   H_2SO_4(aq) + 2NaHCO_3(s) \rightarrow Na2SO_4(aq) + 2H_2O(l) + 2CO_2(g)

Next we will calculate how many moles of H_2SO_4 are present in 85.00 mL of 1.500 M sulfuric acid.

As,       Molarity = \frac{\text{moles of solute}}{\text{liters of solution
}}

            1.500 M = \frac{n}{0.08500 L
}

                    n = 0.1275 mol H_2SO_4

Now set up and solve a stoichiometric conversion from moles of H_2SO_4  to grams of NaHCO_3. As, the molar mass of NaHCO_3 is 84.01 g/mol.

 0.1275 mol H_2SO_4 \times (\frac{2 mol NaHCO_3}{1 mol H_2SO_4}) \times (\frac{84.01 g NaHCO_3}{1 mol NaHCO_3})

                 = 21.42 g NaHCO_3

So unfortunately, 15.00 grams of sodium bicarbonate will "not" be sufficient to completely neutralize the acid. You would need an additional 6.42 grams to complete the task.

4 0
3 years ago
Explain the relationship between the absolute temperature of a substance and the kinetic energy of its particles.
arlik [135]
The absolute temprature is the limit to the highest and lowest temprature while the kinetic energy is the amunt of energy acquired by molecule to aid movement
4 0
3 years ago
Describe the environmental impacts that are involved during the design, research and development, and marketing phases of cell p
Debora [2.8K]

Answer:

joe mama

Explanation:

400 + 20 + 420

4 0
3 years ago
How many moles of CaCI are present in 60.0mL of a 0.10 M CaCI2 solution?
balandron [24]

Answer:

0.006 mol of CaCl2 are present

Explanation:

Use dimensional analysis for this:

60.0 mL CaCl2/1  * 1 L/1000 mL * 0.10 mol/1 L = 0.006 mol

If you were to write this as fractions out on paper, you'll see that all of the units will cancel out and you'll be left with moles of CaCl2.

**REMEMBER** that molarity (M) is talking about how many moles of that substance is present in one Liter of solvent.

Hope this helps :)

4 0
3 years ago
How the moon surface is visible to an observer on earth
ehidna [41]

The moon surface is visible to an observer on earth due to the gravitational force that attracts the moon to the earth. The more massive the body is, the more the smaller body is attracted to the larger body. We can only see the side of the moon due to the speed at which the moon rotates.

3 0
3 years ago
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