We can block light by placing obstacles in its path, but it’s much more difficult to block sound. why?
sound waves are transverse waves.
sound waves can move through various mediums.
sound waves have high frequencies.
sound waves have short wavelengths.
sound waves have low amplitudes.

During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.

What are the genotypic and phenotypic ratios

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?