1.Which of the following demonstrate s a chemical reaction? a. Boiling water
b. Lighting incense sticks
c. Melting ice cubes
d. Subliming mothballs

2.which following is a chemical reaction
a. salt dissolved in water
b. Food spoilage
c. crystallization of fish sauce
d. Melting ice cream

How is the composition of a meteorite relevant to finding out the composition of earth's core?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear