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abruzzese [7]
3 years ago
15

How do we observe in experiments?

Chemistry
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

by watching and writing down the information that is provided

Explanation:

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Answer:

Schb

Explanation:

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3 years ago
An atom contains on proton, one electron, and one neutron. Which two particles are most similar in mass
Darya [45]
Proton and neutron have similar masses.
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What is most likely the ph of a solution containing many hydroxide ions (oh-) and few hydrogen ions (h )?
SIZIF [17.4K]
PH of solution will be greater than seven (pH>7), that means that solution is basic (<span>pH above </span>7<span> is a base, the higher the number, the stronger is the base).
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3 years ago
Molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of __________.A) the law of multiple
fgiga [73]

Answer:

The correct answer is B.

Explanation:

The molecule of water has 2 atoms of hydrogen and 1 atom of oxygen.

The ratio of masses are given as:

2\times 1 g/mol: 1\times 16 g/mol= 1 : 8

This illustrates the law of definite proportions which is also known as law of constant compositions .

The law states that 'the elements combining to form compound always combine in a fixed ratio by their mass.'

Whereas :

Law of multiple proportion states that when two elements combine with each other to form more than one compounds , the mass of one element with respect to the fixed mass of another element are in ratio of small whole numbers.

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

In a balanced chemical reaction ,total mass on the reactant side must be equal to the total mass on the product side.

Law of conservation of energy states that energy can neither be created nor be destroyed but it can only be transformed from one form to another form.

7 0
3 years ago
Repeated trials and replication are the same thing.
inessss [21]

Answer:

false

Explanation:

4 0
3 years ago
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