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Allushta [10]
3 years ago
15

A substance undergoes a change. Which statement indicates that the change was a chemical change?

Chemistry
1 answer:
romanna [79]3 years ago
5 0

Answer:

Chemical change is represented by change in smell, temp., presence of gaseousness/bubbles, and change in color

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HELP WILL GIVE BRANLIEST
Elodia [21]

Answer:

Boron (B) Atomic Mass: 10.811

Explanation:

The number of protons and electrons are the same, always. You can find the atomic mass by looking at the periodic table for that atom: 10.811

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3 years ago
Name the element which has twice the number of electrons in its second shell as in the first shell write it's electronic configu
Basile [38]
CARBON! :) it’s the 6th element
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The isotope carbon-14 has 6 protons and an atomic mass of 14. Carbon-14 has:
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Carbon has 7 neutrons

Hope this helps
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3 years ago
Read 2 more answers
1. The motion of an object with constant acceleration is also known as ________. *
Charra [1.4K]

Answer:

i can't answer sorry

Explanation:

i had confused

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química: compara y contrasta la investigación básica, investigación aplicada y el desarrollo tecnológico. razonamiento crítico.​
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