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Snowcat [4.5K]
2 years ago
8

2

Chemistry
1 answer:
Paha777 [63]2 years ago
5 0

Answer:

Explanation:

If a lithium Li atom has 3 protons 3 electrons and 4 neutrons What is its atomic mass

A lithium atom contains 3 protons in its nucleus. Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always Z = 3. The mass number, however, is A = 6 for the isotope with 3 neutrons, and A = 7 for the isotope with 4 neutrons.

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4. Define oxidation and reduction in terms of the gain or loss of electrons.
Andreyy89

\mathbb\color{cyan}{\tiny A\scriptsize N\small S\large W\Large E\huge R}

  • Oxidation is loss of electrons, gain of oxygen or loss of hydrogen.
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3 0
3 years ago
A mixture of so2(g) and o2(g), formed by the complete decomposition of so3(g), is collected over water at 34°c at a total pressu
Sedbober [7]
The decomposition of so3 to so2 gas and o2 gas can be described in the balanced chemical equation: 

2so3(g) = 2 so2 (g) + 02(g). 

so assuming a complete reaction, the ratio of so2 gas to total products is 2/3 while that of 02 is 1/3. 

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8 0
3 years ago
When pellets of NaOH(s) are added to a flask of water, it is observed that the temperature of the water increases as the pellets
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Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactant are more than the energy of product. In exothermic reaction, the change in enthalpy is, negative.

Thus as energy is absorbed by water, which has been released by NaOH, the process is exothermic.

3 0
3 years ago
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3 years ago
HOW MANY M ARE IN 3.0X105 MM?
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7 0
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