Answer:
Explanation:
A hydroxide of a metal is a base.
B is wrong. HCl is an acid.
C is wrong. NaCl is a salt.
D is wrong. Water is neutral.
Answer: Option (D)
Explanation: Chemical weathering refers to the breakdown of minerals and forming new minerals due to the presence of chemical elements. For example, hydrolysis.
Due to the chemical weathering, initially, the minerals will get dissolved and are carried to the streams and oceans. After that, due to the saturation by water, the crystals will be precipitated out of that existing solution.
This crystals then sinks down to the bottom, forming sedimentary rocks.
Thus, the correct answer is option (D).
Answer:
4.6 moles.
Explanation:
To find the amount of moles of Magnesium, you will need to use Avogadro's number to convert between the two units.
2.77×10^24 moles Mg * (1 mol Mg)/(6.02*10^23)) ≈ 0.46×10^1 moles which equals <u>4.6 moles.</u>
