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Salsk061 [2.6K]
3 years ago
11

Tony recorded data from his chemistry experiment in the following table. Sample Color Volume Temperature Mass A yellow 150 mL 20

°C 40.1 g B red 125 mL 20°C 15.2 g C clear 175 mL 20°C 26.3 g D green 150 mL 20°C 81.4 g Which of the categories from Tony's data table includes qualitative observations? A. mass B. temperature C. color D. volume
Chemistry
1 answer:
siniylev [52]3 years ago
6 0

Color

Explanation:

Only color out of the listed observations is the qualitative observation. Qualitative observations are usually carried out using our senses.

  • Sense of touch makes us feel the texture of particular subject.
  • Sense of smell gives different types of scents and odors.
  • Sense of sight helps us to identify different colors and appearances in a study.
  • Sense of taste helps to know if something is bitter, sweet or sour.
  • Sense of hearing helps to know how audible something it.

Qualitative observations does not involve the use of numbers.

Learn more:

observations brainly.com/question/5096428

#learnwithBrainly

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Why is atp an example of chemical potential energy?
marta [7]
Hello! I hope this helps

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7 0
3 years ago
Use the equation to determine what mass of FeS must react to form 326 g of FeCl2.
iogann1982 [59]

Answer:

We need 226 grams of FeS

Explanation:

Step 1: Data given

Mass of FeCl2 = 326 grams

Molar mass FeCl2 = 126.75 g/mol

Step 2: The balanced equation

FeS + 2 HCl → H2S + FeCl2

Step 3: Calculate moles FeCl2

Moles FeCl2 = 326 grams / 126.75 grams

Moles FeCl2 = 2.57 moles

Step 4: Calculate moles FeS needed

For 1 mol H2S and 1 mol FeCl2 produced, we need 1 mol FeS and 2 moles HCl

For 2.57 moles FeCl2 we need 2.57 moles FeS

Step 5: Calculate mass FeS

Mass FeS = 2.57 moles * 87.92 g/mol

Mass FeS = 226 grams FeS

We need 226 grams of FeS

4 0
3 years ago
Does the Ba(OH)2 solution contain ions?
LUCKY_DIMON [66]
Yes. It does contain Ions. 
4 0
3 years ago
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Which boiling point is lower an why?
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Explanation:

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3 0
3 years ago
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A compound has a pka of 7.4. to 100 ml of a 1.0 m solution of this compound at ph 8.0 is added 30 ml of 1.0 m hydrochloric acid.
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