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777dan777 [17]
3 years ago
14

What is science about?

Chemistry
2 answers:
Olin [163]3 years ago
8 0

Answer:

Science is the study of the nature and behavior of natural things and the knowledge that we obtain about them. ... A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.

Explanation:

jek_recluse [69]3 years ago
6 0
Science is Scienceeeee
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which objects would have a greater gravitational force between them, Objects A and B, or Objects B and C? HELPPP
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How will vinegar slow down the break down of an apple?
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Many people take apple cider vinegar before protein-heavy meals to improve digestion. The theory is that apple cider vinegar increases the acidity of your stomach, which helps your body create more pepsin, the enzyme that breaks down protein

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Which of these statements best describes the relationship between elements, compounds, and pure substances?
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pure substances can be divided into two groups; elements and compounds

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Which is a characteristic of mixtures?
siniylev [52]

Answer:

The correct answer is "They can be separated by physical processes"

Explanation:

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Determine the number of charged particles in nucleus of calcium atom then deduce the number of electrons
Dafna1 [17]

Answer:

detail is given below.

Explanation:

The charged particles of nucleus are protons while neutrons are neutral having no charge.

We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus.

Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.

Symbol of proton= P⁺  

Symbol of neutron= n⁰  

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While the atomic number is 20.

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3 years ago
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