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vladimir1956 [14]
3 years ago
13

Use the drop-down menus to complete each sentence.

Chemistry
2 answers:
kenny6666 [7]3 years ago
7 0

Answer: Gas , Solid and Liquid

Explanation:

To complete each sentence , One can easily conclude that the various state of matter are in question here.

To further explain better,

(1) Gas molecule is consider to b moving and also move at a faster rate is respect to others.

(2)Solid molecule usual takes a standing still position unless an external pressure acts on it.

(3) Liquid molecule is capable of starting at same location and then move to another location but not at a faster rate compare to gas molecule.

evablogger [386]3 years ago
6 0

Answer:

car a

car c

cars a and b

on egdenuity i just did it

Explanation:

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Separation of mixtures and purification of chemical substances
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Answer:

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4 0
3 years ago
Which metal in Period 5 is very reactive and has two valence electrons in each atom?
Romashka-Z-Leto [24]
The answer is Strontium(Sr). The reactive increase from right to left. And this element has two valence electrons. So Rb is not correct. Then the very reactive metal is Sr.
8 0
3 years ago
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A 40.0-mL sample of 0.100 M HNO2 (Ka = 4.6 x 10-4 .) is titrated with 0.200 M KOH. Calculate: a. the pH when no base is added b.
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Answer:

a) 2.173

b) 20ml

c) 3.87

d) 4.35

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f) 12.45

Explanation:

chech the attachment for explanationns

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3 years ago
a compound with the empirical formula CH2 has a molar mass of 112 g/mol. What is the molecular formula for this compound?
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3 years ago
An automated filling machine is used to fill bottles with liquid detergent. A random sample of 20 bottles results in a sample va
taurus [48]

Answer:

No, there is no evidence that the manufacturer has a problem with underfilled or overfilled bottles, due that according our results we cannot reject the null hypothesis.

Explanation:

according to this exercise we have the following:

σ^2 =< 0.01 (null hypothesis)

σ^2 > 0.01 (alternative hypothesis)

To solve we can use the chi-square statistical test. To reject or not the hypothesis, we have that the rejection region X^2 > 30.14

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Since 29.1 < 30.14, we cannot reject the null hypothesis.

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