Answer:
0.028578 km
Explanation:
The following data were obtained from the question:
Length of whale (in mm) = 28578 mm
Length of whale (in km) =?
We can convert 28578 mm to km by doing the following:
Recall:
1 mm = 1×10¯⁶ Km
Therefore,
28578 mm = 28578 mm × 1×10¯⁶ Km / 1 mm
28578 mm = 0.028578 km
Thus, 28578 mm is equivalent to 0.028578 km
The length of whale (in km) = 0.028578 km
May i please have a(n) answer choices please because it would be a lot better if it was like that and then ill answer it
An element is a substance that can not be broken into simpler parts by chemical means. Elements are made up of atoms. A molecule is the smallest particle of an element or a compound that has the same properties as the element or the compound. A molecule is made up of two or more atoms . A substance may be an element and a molecule. In this case the answer is, H2 (hydrogen gas) which is a molecule with two atoms of hydrogen and an element.
Answer:
E
Explanation:
To solve this question, we need to know the oxidation number in the compound in the question. The name of the compound is tetraoxosulphate(vi) acid. We can obviously see that the oxidation number of sulphur in this particular compound is 6.
A. Is wrong
The name of the compound is trioxosulphate(iv) ion
B. Is wrong
S2O32-
2S + 3(-2) = -2
S = +2
C.is wrong
Oxidation state there is -2
D is wrong
The oxidation number here is zero
E is correct
Oxidation number of oxygen is -2 and that of chlorine is -1
Hence:
S + 2(-2) + 2(-1) = 0
S -4 -2 = 0
S = 4+2 = +6
