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KiRa [710]
3 years ago
7

Choose the term that best describes the following statement: a system in equilibrium will oppose a change in a way that helps re

duce the change.
A. Lewis's principle
B. Avogadro's principle
C. the reductive principle
D. Le Châtelier's principle
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
3 0
Le Chatelier's principle (D)
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water is a covalent compound which is formed by the covalent bonding between hydrogen and oxygen atoms.

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3 years ago
How are energy and work related?
kipiarov [429]

Answer:

B

Explanation:

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3 years ago
A chemistry student weighs out 0.154 g of chloroacetic acid (HCH2CICO2) into a 250. mL volumetric flask and dilutes to the mark
erastovalidia [21]

Answer:

11.6 mL of 0.1400 M of NaOH is required to reach equivalence point.

Explanation:

Chloroacetic acid is an monoprotic acid.

Neutralization reaction: ClCH_{2}COOH+NaOH\rightleftharpoons ClCH_{2}COONa+H_{2}O

So, 1 mol of chloroacetic acid is neutralized by 1 mol of NaOH.

Molar mass of chloroacetic acid = 94.5 g/mol

So, 0.154 g of chloroacetic acid = \frac{0.154}{94.5} moles of chloroacetic acid

                                                     = 0.00163 moles of chloroacetic acid

Lets assume V mL of 0.1400 M of NaOH is required to reach equivalence point.

So, number of moles of NaOH needed to reach equivalence point

      = \frac{0.1400\times V}{1000} moles

So, \frac{0.1400\times V}{1000}=0.00163

or, V = 11.6

Hence, 11.6 mL of 0.1400 M of NaOH is required to reach equivalence point.

7 0
3 years ago
Help with this question plz
Triss [41]
Increase, because you need heat to melt a solid to a liquid, so the temperature will have to get greater.
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The mechanical advantage of a device refers to
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Answer:

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Explanation:

4 0
2 years ago
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