It can be any row
Explanation:
An element with a valence electrons of 3 can be in any row on the periodic table.
The rows are the horizontal arrangement of elements on the periodic table.
Elements on the same row have the same energy level.
- The periodic table rows are called periods.
- It is only in the groups that we can find such element.
- Group 3 elements have 3 valence electrons.
- Since this group cuts through all the rows, therefore, elements with 3 valence electrons can be found in any row.
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A mole is a rather unusual unit of measurement. It is defined by a specific number of particles, molecules, atoms, or any other unit.
That number happens to be 6.022×10²³.
When we talk about a mole of water, then, we refer to 6.022×10²³ molecules of water.
Comparing 1 mole of 02 with 1 mole of CO:
This means means that both quantities will have the same number of molecules. The answer is C.
It may be tempting to select D, since it relates to the number of atoms rather than mass or volume, and moles are related to this idea. However, keep in mind that one mole of O2 will actually have twice as much oxygen atoms as one mole of CO, since there are two oxygen atoms per O2 molecule and only 1 oxygen atom per CO molecule.
Answer:
35 gm
Explanation:
What is mass of 0.6 mol C4H10
C4H10 has a molar nass of
(4X12) (10
X 1) = 48 + 10 8
so 1 mole of C4H10 is 58 gm
so 0.6 moles is
(0.6 X58) = 35 gm
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Answer: Na2CO3 + 2 HCl → 2 NaCl + H2CO3
I hope this helped!
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2. Ridge
A ridge is the only option that forms when plates move apart. The other options happen when the plates collide.
