Which is an example of a physical change?
a. growing taller
b. digesting your food
c. getting a suntan
d. cutting your hair

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

What type of electromagnetic radiation has a shorter wavelength than blue light