Answer:
49.4 mol Oxygen
Explanation:
Mg(NO3)2 ----- 6 O
1 mol 6 mol
8.24 mol x mol
x = 8.24*6/1 = 49.44 mol ≈ 49.4 mol Oxygen
Answer:
The electron dot diagram shows the arrangement of dots without identifying the element.
? with 2 dots each above and right and 1 dot each below and left.
Which element’s symbol could replace the question mark in the diagram?
carbon (C)
tellurium (Te)
beryllium (Be)
cesium (Cs)
Explanation:
Water is a pure substance, a compound made of hydrogen and oxygen. Water is rarely found naturally in its pure form.
Small peak at 3000large peak at 1685F: it contains two benzene rings that is connected by a bunch of carbons and ketone-Explanation: The spectrum shows a stretching absorption consistent with a ketone functional group: carbonyl C=O stretching at ~1685 cm-1. (An aldehyde, by contrast, would also show a ~2700 cm-1 absorption for the carbonyl C-H stretch.) The C=O stretching frequency is consistent with an aromatic ketone, such as in compound F (1,4-diphenyl-1,4-butanedione). In contrast, an aliphatic ketone absorbs at higher energy (~1710 cm-1). The spectrum also shows the typical ~1600 & ~1500 cm-1 absorptions of a phenyl group.
fluorine is the halogen used in toothpaste
