Answer: Helium (He) and Selenium (Se) both are non metals ends with ium sound
Explanation:
He is a inert gas and Se belongs to oxygen family (VI A group)
Answer:
The method used for measuring the small distance is by using the scales and the distance measured over long distance is by inch tape or measuring tape.
Explanation:
1) 1 molecules
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3
Complete Question
The complete question is shown on the first uploaded image
Answer:
10a The interest payment on the bond is = $ 8,204
10b The debit to cash for the bond proceeds is = $ 302,000
Explanation:
The explanation is shown on the second uploaded image
The existence of an atom was first suggested by Democritus, the idea is then developed in 1803 by John Dalton.
According to Dalton's atomic theory, matter is made up of atoms which are inseparable and can not be destroyed further. For a given element, all atoms have identical mass and properties. Atoms of two different elements combine to form compounds and rearrangement of these atoms results in chemical reaction.
