Answer:
There are 6.022 * 10(23 as a power) water molecules.
Explanation:
3.50 * 6.022 * 10(23 as a power) . mol(-1 as power)
=~ 21* 10(23 as power) .
Hope it helps!
Answer:
Beryllium
Explanation:
No. of protons = 4
<em>No. of electrons = 4 (number of protons and neutrons are the same)</em>
No. of neutrons = 5
You need to look at the number of electrons of the outer shell (group no.) there are and how many shells there are (period no.)
Then look at the period table of elements to find the element
Answer:
Density
Explanation:
Intensive properties are those properties that do not depend on the size of the system or on the amount of matter in the system.
If materials are being sorted out for recycling, then materials can be sorted in accordance with their different densities and packed as such, this is quite a convenient way of sorting out the materials for recycling, hence the answer above.
Answer:
The answer is B
Explanation:
Protons and electrons have to be equal numbers for it to be neutral
