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vladimir2022 [97]
3 years ago
14

Help with number 3 plz help due tomorrow!!!!!!!!!!

Chemistry
2 answers:
tiny-mole [99]3 years ago
7 0

Answer:

characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing

Explanation:

so When viewed together, these characteristics serve to define life.

IceJOKER [234]3 years ago
4 0

Answer:

which one?

Explanation:

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Silver chloride, often used in silver plating, contains 75.27% Ag.
Contact [7]

Answer:

add

Explanation:

add 100 and 200 and that is your answer

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3 years ago
What is the number of copper atom in one naira coin which weight is 7.3g a sum of the material is 86%
Step2247 [10]

Answer:

5.9x10²² atoms of Cu are in one naira coin

Explanation:

To solve this question we need to find the mass of Copper. Then, using its molar mass (Cu = 63.546g/mol) we must find the moles of Cu and its atoms using Avogadro's number:

<em>Mass Cu:</em>

7.3g * 86% = 6.278g is the mass of Cu.

<em>Moles Cu:</em>

6.278g * (1mol / 63.546g) = 0.099moles Cu

<em>Atoms Cu:</em>

0.099moles Cu * (6.022x10²³atoms / 1mol) =

<h3>5.9x10²² atoms of Cu are in one naira coin</h3>
4 0
2 years ago
Which statement describes the masses of the particles that make up an atom?
Novay_Z [31]
The mass of the atom is equal to the sum of the number of protons and the number of neutrons. In a neutral atom, the number of protons is equal to the number of electrons.  The atomic number meanwhile of an atom is equal to the number of protons of the atom.
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How does the number of reactants in a double-displacement reaction
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