Achemical reaction

question 3 options:

a. is when something changes the state of matter

b. creates one or more new substances

c. is only a physical change

d. happens in the water cycle

Yo i need a catchy title for an article about the importance of the fourth amendment

Examine these two paintings that depict famous events from american history. the image on the left, painted in 1940, shows the signing of the u. s. constitution in 1787. the image on the right, painted in 1836, shows the american victory at the battle of yorktown in 1781.which of these paintings should be considered a secondary source?

What battle in the civil war was known as the bloodiest war ?