Answer:
a rock containing a lot of iron
Explanation:
Iron ore is an ore of iron and this implies a rock that contains a substantial amount of iron.
An ore is a naturally occurring rock type that hosts a certain type of metal or solid that can be won at profit with some gangue minerals. Iron ore is one such type of substance from which significant amount of iron can be extracted for use by man. The remaining part quite not useful is the gangue.
Different types of cells
Small organelle features
Smaller number of cells
I hope this helps, this would be my answer good luck!
Answer:
Explanation:
When Tollen's test is done by aldehyde , silver ion is converted into silver which forms a layer which looks like a mirror.
Ag⁺ + e = Ag
It is a reduction process where silver(1) ion is reduced to metallic silver.
Aldehyde is oxidized to carboxylate ion.
CH₃CHO + 2 OH⁻ = CH₃COO⁻ + H₂O + H⁺ + 2e
Visual indicator is silver metal which forms silver mirror at the bottom of test tube .
<h3>
Answer: 144 g</h3>
Explanation:
Mass of glucose = moles × molar mass
∴ Mass of glucose = 0.8 mol × 180 g mol⁻¹
= 144 g
∴ the mass of glucose you need to have 0.8 mol of glucose = 144 g