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Lyrx [107]
3 years ago
14

Question 8

Chemistry
1 answer:
castortr0y [4]3 years ago
5 0

Answer:

The 5 chemical changes are. 1) Tarnish, 2) Rust, 3) Dissolve, 4) Burn, 5) Bake.

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4 0
2 years ago
Write the electronic configuration of the Na +, Mg2 +, Ca2 + and Rb + ions. Research the size of these ions in picometers and or
Sunny_sXe [5.5K]

Answer:

pen

Explanation:

3 0
3 years ago
What is the mass number of an atom that contains 12 protons, 14 neutrons, and 12 electrons? *
Yuri [45]

The mass number of an atom : 26

<h3>Further explanation</h3>

Given

12 protons, 14 neutrons, and 12 electrons

Required

The mass number

Solution

Inside the atom there are 3 sub-particles, namely protons, neutrons and electrons. Protons and electrons are present in the atomic nucleus while electrons move around the atomic nucleus through energy levels in the atomic shell

Atomic number = number of protons = number of electrons

Mass number = number of protons + number of neutrons

Input the value :

Mass number = 12 + 14

Mass number = 26

7 0
3 years ago
In an atom, electrons ____.
irakobra [83]
In an atom, electrons travel outside the nucleus.

c. travel outside the nucleus.
7 0
3 years ago
What are the four main parts of the Sun? *
Eddi Din [679]

Answer: The inner layers are core, radiative zone, and convective zone. The putter layers a photosphere, the chromosphere, the transition region and the corona

6 0
3 years ago
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