How could a chemical change create sound

What are most lipids made up of?

The center of hemoglobin is made of which of the following?

Would pure water be considered an element or compound, justify

Two liquids are known to be miscible. They are placed in a beaker and shaken. Which of the following describes what will happen? The liquids will eventually separate into two layers. The liquids form a solution.

What elements have the most similar chemical properties

Which of these is a property of bases? They produce hydrogen gas when reacted with metals. They turn litmus paper blue. They feel sticky. They taste sour.

After Pangaea broke up, North America became part of what?

What the different betwen observe and reference

How many moles are in 12.5 g of H2O

How do the atomic number and the number of protons relate to one another? The atomic number tells us the number of protons The atomic number is protons + neutrons They do not Electron Cloud