With an atomic number of 55, that means there are 55 protons. Because electrons do not count towards atomic weight, the element would have 150-55 neutrons. So, 95 neutrons.
Answer:
This is a single replacement reaction because I replaces Br.
Phase of matter
Explanation:
The phase of matter strictly is a function of its temperature. Matter exists in different phases at different temperatures.
- Matter is anything that has weight and occupies space.
- There are three states of matter:
- Solid
- Liquid
- Gas
These phases of matter depends on temperature.
For example;
- Water exists as gases above boiling point
- Water is also solid at freezing point.
- Between the freezing and boiling point, water is a liquid.
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Answer: For this homework question, you’ll need to look up the molar mass of AgNO₃. Use this to calculate the number of moles in the sample.
Then note that silver is (quite usually) univalent, so there will be as many moles of AgCl as there were of AgNO₃.
Ask your instructor or tutor for more in-depth training, if need be. Good luck!
Explanation:
In scientific notation it would be 3.2
