Which one of the following are pure substances : water, salt water, copper, brass, air, oxygen​

The ph of carrots are 5.0 how it is classified a.acidic b.basic c.indicator d.neutral

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest