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Elena-2011 [213]
3 years ago
8

Everything that can be measured is made up of _____ and that is made up of small units called _____?

Chemistry
1 answer:
postnew [5]3 years ago
3 0
Everything that can be measured is made up of matter  and that is made up of small units called atoms.
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Which of the following is a basic solution? HCl dissolved in water b. household ammonia c. vinegar d. pure water
PSYCHO15rus [73]

Answer:

B. Household ammonia.

Explanation:

NH₃ is a base, so the solution always will be basic.

NH₃ takes the proton from the water. In conclusion we have free OH⁻ in medium, that's why the solution is basic.

NH₃ + H₂O → NH₄⁺  +  OH⁻

- HCl + H₂O → H₃O⁺  + Cl⁻

This reaction makes an acid solution, cause the H₃O⁺

- Vinegar is a compound made of acetic acid.

CH₃COOH  + H₂O  ⇄  H₃O⁺  +  CH₃COO⁻

This reaction also makes an acid solution, cause the H₃O⁺

- Pure water makes neutral solution. It is not acid, neither basic.

2H₂O ⇄  H₃O⁺  +  OH⁻

7 0
3 years ago
Which organ has cells that produce pepsin which break down protein
WINSTONCH [101]

Answer:

stomach

Explanation:

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Which type of reaction forms water from hydrogen and oxygen atoms?
Cloud [144]
I believe it was decomposition reaction
7 0
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Qual é o principal fator que indica que o organismo está adptado?
Hoochie [10]

Answer:

Explanation:

Any genetically based physiological, behavioral, or ecological trait that enables an organism to cope with, and to survive and reproduce in, its environment represents an adaptation.

Qualquer traço fisiológico, comportamental ou ecológico de base genética que permite a um organismo enfrentar, sobreviver e se reproduzir em seu ambiente representa uma adaptação.

5 0
3 years ago
Explain the reaction of non-metals with oxygen
Ray Of Light [21]
Non-metals and oxygen produce non-metal oxides. Such as sulphur dioxide and nitrogen oxide which are responsible for acidic rain. Hope this helps
3 0
2 years ago
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