Answer: In order to be alive there must be cells present and since sugar does not contain cells it is not alive.
Explanation:
Answer: Yes
Explanation: Silicon is never found as a free element naturally, meaning it always occurs with other elements.
<span>Permeable means that a material is full of tiny, connected airspaces that allows water to seep through it.</span>
Answer:
A) Sample B has more calcium carbonate molecules
Explanation:
M = Molar mass of calcium carbonate = 100.0869 g/mol
= Avogadro's number = 
For the 4.12 g sample
Moles of a substance is given by

Number of molecules is given by

For the 19.37 g sample

Number of molecules is given by


So, sample B has more calcium carbonate molecules.
The ratio of the elements of carbon, oxygen, calcium atoms, ions, has to be same in both the samples otherwise the samples cannot be considered as calcium carbonate. Same is applicable for impurities. If there are impurites then the sample cannot be considered as calcium carbonate.
Answer:
25 grams of glass by 5.oc aluminium iron glass copper water