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slega [8]
2 years ago
14

Someone please help :/

Chemistry
1 answer:
Alex73 [517]2 years ago
7 0

Answer:

yes i will help

txt me. down and show what is the. project

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Help I don’t understand it and I need the answers
il63 [147K]

Answer:

Demonstration 1 showed a chemical change because a new gaseous substance was formed, and demonstration 2 showed a physical change because liquid water became water vapor.

Explanation:

Chemical changes alter the chemical makeup of a subject, and a physical change only alters the appearance of a subject, not the chemical makeup.

4 0
2 years ago
Why do atoms form bonds or why do bonds form?
stiv31 [10]

Answer:

Atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. A chemical bond is a force of attraction between atoms or ions

Explanation:

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2 years ago
Which statement is correct concerning hereditary information?
Papessa [141]

Answer:

the answer to this question is option A mark me as brainliest

mark me as brainliest

3 0
3 years ago
Write the electron configurations of cu2+ and ag+. is each electron configuration consistent with the color you observed for eac
djverab [1.8K]
(1) Copper:
Copper has the atomic number : 29
Cu2+ means that it lost 2 electrons, therefore, the total number of electrons is 29-2 = 27 electrons.
The electronic configuration is:
1s2 2s2 2p6 3s2 3p6 3d9

(2) Silver:
Silver has atomic number : 47
Ag  + means that it lost one electron, therefore, the total number of electrons  is 47-1 = 46 electrons
The electronic configuration is:
<span>1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10</span>

8 0
3 years ago
Read 2 more answers
What atom has the larger atomic radius Ca or Ni ?
Harrizon [31]

your answer is CA

says quizlet have and its right thanks

5 0
3 years ago
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