A single grain of sand occupies a volume of about 0.004 cubic millimeters. Based on your previous answer, how many grains of sand are on Earth’s beaches? There are 109 cubic millimeters in each cubic meter. Express your answer to the correct number of significant figures.

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Calculate the number of moles of ethane in 100 grams

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.