It describes how, when particles/mc/elements react, despite forming different substances the mass is neither created nor destroyed but only converted.
The density of the solid object will be 2.63 g/mL
<h3>What is density?</h3>
Density of objects = mass/volume.
Recall that an object will always displace its own volume when placed in a liquid.
Volume of the solid object = Cylinder reading after immersing the object in the water - cylinder reading before immersing the object in the water.
= 48.1 - 20.4
= 27.8 mL
Mass of the solid object = 73.05 g
Density of the object = 73.05/27.8
= 2.63 g/mL
More on density can be found here: brainly.com/question/15164682
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Why do molecules combined into chains?
Because more than one substance was released (following a color change signifying a chemical reaction), the sample was indeed, a compound.
Extrusive rock because it takes longer to cool, making the crystal size larger
