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monitta
3 years ago
10

Which of the following statements is a qualitative observation? A.The branch is three meters long. B.The substance tastes bitter

. C.There are eleven students absent. D. The beaker contains four hundred milliliters of an unknown liquid.
Chemistry
1 answer:
notka56 [123]3 years ago
7 0

There are two kinds of analysis: qualitative and quantitative

In quantitative we analyse the amount of something that is how much of something is present / the quantity. Ex: the length of branch of tree, number of students in class, volume of a liquid in a beaker.

In qualitative analysis we determine the kind of substance / quality of substance / nature of substance.

like: colour of a substance, odor of a substance or taste (bitter / sour / sweet etc) of a substance

So answer is : B.The substance tastes bitter

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Water molecules are bonded by strong hydrogen bonding between the hydrogen atom and the electronegative oxygen atom making it polar. Thus water molecules present on the surface are strongly attracted by the molecules present below the surface and thus act as a stretched membrane.  

The surface acquires a minimum surface are and thus acquire a spherical shape.

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What is the equilibrium constant?

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6 0
1 year ago
Look at the bottom of the periodic table. There are two rows of elements separated from the others. Where do these
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Answer:

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I hope this helps!

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4 years ago
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Explanation:

Sodium Chloride or NaCl is made up of two elements, sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, consists of one atom each of sodium and chlorine. Hence, each molecule of NaCl has 2 atoms total.

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Ivanshal [37]

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7 0
4 years ago
Read 2 more answers
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