a. woodb. waterc. brassd. silvere. iron orei‘m thinking the answer is D, but i‘m not sure.
silver. Wood contains the elements carbon hydrogen, nitrogen and oxygen brass is a alloy which contains the two elements copper and zinc iron ore is a mixture of dirt and iron particles -iron oxides to be exact. So that means silver is the single element
The answer is D. In the periodic table Silver is Ag therefore an element of the periodic table. Water is a molecule not a single element. The other three are objects not elements.
It is silver. An atom is a single element, Wood is just a compilation of chemicals. Water is a molecule consisting of several bonded atoms, Brass is copper and nickle is an alloy, or just a physically bonded mixture. Iron ore is a rock that contains iron in it that needs to be removed from the unnecesary material.
