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Serjik [45]
3 years ago
14

Why do we classify matter?

Chemistry
1 answer:
jekas [21]3 years ago
3 0

Because it is important to understand why all liquids are not the same, and why some are purer than others, in terms of their chemical makeup or compositions.

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A block of aluminum occupies a volume of 15.0 cm and weighs 40.5 g. What is its density?
mafiozo [28]

Answer:

2.7 g/cm^3

Explanation:

D = m/V

D = 40.5 g / 15 cm^3

D =  2.7 g/cm^3

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3 years ago
What is the foundational principle of ALL science?
Natalija [7]

Answer:

Among the very basic principles that guide scientists, as well as many other scholars, are those expressed as respect for the integrity of knowledge, collegiality, honesty, objectivity, and openness.

Explanation:

Principles are ideas based on scientific rules and laws that are generally accepted by scientists. They are fundamental truths that are the foundation for other studies. ... They are more like guiding ideas that scientists use to make predictions and develop new laws.

6 0
3 years ago
1. Which metal is the most reactive? How do you know this?​
Novosadov [1.4K]

Answer:

cesium

Explanation:

The most reactive metal on the periodic table is francium. However, francium is a man-made element and only minute quantities have been produced, so for all practical purposes, the most reactive metal is cesium. Cesium reacts explosively with water, though it is predicted francium would react even more vigorously.

5 0
4 years ago
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harkovskaia [24]

Answer:it’s b

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3 0
3 years ago
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Which list of atomic model descriptions represents the order of historical development
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