Answer:
1 pi bond and 6 sigma bonds
Answer:
A channel in an ancient Martian "river bed" was not carved out by liquid water but built by molten lava
Answer:
D is correct. Atoms of the same element are the same
Explanation:
6. Which of the following statements is one of the postulates in Dalton's atomic theory?
A) All atoms are all the same.
B) Only some elements are composed of atoms.
C) Atoms of the same element are different.
D Atoms of the same element are identical.
D is correct. Atoms of the same element are the same
Atoms of different elements are different
when different atoms combine, they do this in simple ratios and form molecues which are the building block of compounds
<span>Avogadro's number
represents the number of units in one mole of any substance. This has the value
of 6.022 x 10^23 units / mole. This number can be used to convert the number of
atoms or molecules into number of moles. We calculate as follows:
0.180 mol Br2 ( </span>6.022 x 10^23 molecules / mole ) = 1.084x10^23 molecules Br2
