Answer:
It's Al 3+ + 3e - → Al
Explanation:
Because three negatively charged electrons are needed to balance the three positive charges on the aluminum ion
Answer:
Q = 797.5 cal
Explanation:
Given that,
Mass of iron, m = 50 g
The temperature rises from 55°C to 200°C.
We need to find the heat needed to raise the temperature. The heat raised is given by :
Put all the values,
So, 797.5 calories of heat is needed.
Answer:
the answer is Matter for the first one the second one is a chemical bond
Explanation:
:)
Answer:
It can enhance survival because the animals for example birds are migrating to those places for high or increasing resources
Explanation:
<span>1.Schrodinger's equation deals with the modern atomic theory.
2. They are tested by many scientists.
3. I am not sure on this one.
4. It depends on the atomic weight of the boron. There are 5 protons for sure, but the number of neutrons depends on the isotope.</span><span>
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