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Monica [59]
2 years ago
15

Question 4 of 5

Chemistry
2 answers:
alex41 [277]2 years ago
6 0

Answer:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>
  • First rewrite the sentence that defines the equation

Zinc (Zn) combines with hydrogen chloride (HCI) to form hydrogen gas(H2) and zinc chloride (ZnCl2).

<h3><u>Chemical</u><u> </u><u>Equation</u></h3>

\sf Zinc+Hydrogen\:Chloride \longrightarrow Hydrogen\:gas+Zinc\:Chloride

  • Now write the equation

\sf Zn+HCL \longrightarrow H_2+ZnCl_2

  • Balance

\sf Zn+2HCL\longrightarrow H_2+ZnCl_2

  • option C is correct
Ghella [55]2 years ago
4 0

Answer:

Explanation:

Answer is C

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The concentration of an additive in a standard sample of palm oil was measured 6 times and the following results were obtained:
Lerok [7]

In the data, 0.20 ppm is an outlier and this can be rejected if there is a 95% confidence level.

<h3>What is an outlier?</h3>

When analyzing data an outlier is a value that is abnormal or too different from other data. In the case presented 0.20 can be tagged as an outlier because other values such as 0.11, 0.12, 0.13, and 0.14 are similar while 0.20 is outside this range.

<h3>Should this piece of data be rejected?</h3>

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Based on this, you can reject an outlier if the confidence level is 95%.

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7 0
2 years ago
Which scientist is known as the father of chemistry *?
noname [10]
The correct answer is <span>Antoine-Laurent de Lavoisier. Hope this helps!</span>
3 0
3 years ago
What type of intermolecular forces are due to
Gala2k [10]

Answer:

A. London dispersion

Explanation:

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5 0
3 years ago
Read 2 more answers
HELP PLEASE (Solve this problem using the appropriate law). what is the volume of 0.382 moles of hydrogen gas at 1.50 atmosphere
kaheart [24]

Answer:

V = 6.17 L

Explanation:

Given data:

Volume = ?

Number of moles = 0.382 mol

Pressure = 1.50 atm

Temperature = 295 k

R = 0.0821 L. atm. /mol. k

Solution:

According to ideal gas equation:

PV= nRT

V = nRT/P

V = 0.382 mol × 0.0821 L. atm. /mol. k ×295 k / 1.50 atm

V = 9.252  L. atm.  / 1.50 atm

V = 6.17 L

5 0
3 years ago
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