The correct option is A.
Metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. The malleability of metals refers to their ability to withstand bending and hammering without breaking. Metals are not dull, neither are they brittle, those are the properties of non metals.
I'm pretty sure it's A because its just sand and everything else is mixed with something Hope that helped Have a good day! :-)
Answer: B. ![\text{CH}_{3}\text{COO}^{+}](https://tex.z-dn.net/?f=%5Ctext%7BCH%7D_%7B3%7D%5Ctext%7BCOO%7D%5E%7B%2B%7D)
Explanation:
To find the conjugate base, you add a hydrogen ion and add 1 to the overall charge.
The molar mass of SnO is 134.71 g/mol .
Molar mass of SnO is calculated as follows ,
- Make use of the chemical formula to determine the number of atoms of each element in the compound.
- Multiply the atomic weight of each element with its number of atoms present in the compound.
- Add up all and assign unit as grams/mole.
Example : molar mass of SnO = atomic weight of Sn + atomic weight of O
molar mass of SnO =118.71 + 16 = 134.71 g / mol
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