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wolverine [178]
3 years ago
8

Justin mixed two clear liquids together during an experiment and made the following observations: The mixed liquids decreased in

temperature without any refrigeration or other action to change the temperature. The color of the liquid changed to blue. Which statement best describes Justin’s experiment? A. A physical change occurred, and this caused the liquid’s chemical properties to change. B. A chemical change occurred, and this caused the liquid’s physical properties to change. C. A physical change occurred, so only physical properties changed. D. A chemical change occurred, so only chemical properties changed.
Chemistry
1 answer:
kvasek [131]3 years ago
5 0

Answer:

B

Explanation:

A chemical change occurred, and this caused the liquid’s physical properties to change.

when we read her experiment we can see that color changed to blue, it is because new products are formed. And the temperature cause this.

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Answer:

The answer to your question is below

Explanation:

Ionic bond is a kind of bond in which a metal attaches to a nonmetal. Also we know that a molecule has ionic bonding if the electronegativity is higher than 1.7.

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a) MgO         Metal - Nonmetal                3.44 -  1.31 = 2.13                     Ionic

b) SrCl₂        Metal -Nonmetal                  3.16 - 0.95 = 2.21                    Ionic

c) O₃             Nonmetal- Nonmetal          3.44 - 3.44 = 0                      Covalent

d) CH₄O       Nonmetal-Nonmetal           3.44 - 2.55 = 0.89                Covalent

   Carbon, Hydrogen and oxygen are nonmetals

2) Silver coins can conduct electricity.

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3 years ago
How many grams are there in 0.12 mol of H2?
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Hence the option stating "Gabriella is is slowing down at the same rate that Kendall is speeding up and Franklin is not accelerating"  is true and it best describes the riders.

8 0
4 years ago
Read 2 more answers
identify the reagents necessary to achieve each of the following transformations o3 dms, pcc, ch2cl, h2so4,h2o,hgso4
hoa [83]

the reagents necessary to convert alcohol to ketoneNa_2Cr_2O_7 , H_2O which involves oxidation of alcohols.

<h3>What is oxidation of alcohols?</h3>
  • Alcohol oxidation is a significant organic chemistry process. Secondary alcohols can be oxidized to produce ketones, while primary alcohols can be oxidized to produce aldehydes and carboxylic acids.
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  4. Dichromate of pyridinium (PDC, Cornforth reagent)
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To learn more about oxidation of alcohols with the given link

brainly.com/question/7207863

#SPJ4

<u>Question:</u>

Identify the reagents necessary to achieve each of the following transformations

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c.Na_2Cr_2O_7 , H_2O

d.Fe ^ {2+}, NaOH

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