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1. Explain How do scientists know what moon's crust is made of?

What is the hydrosphere and what is its importance to life on Earth

Write the formula of the compound that will be formed between these elements: AI and S

What is the salt that is produced when ammonia (nh3) and hydrochloric acid (hcl) react together?

If rust is scraped off a nail, and the nail is shiny on the inside, the inside wasA. chemically changed also. B. not chemically changed. C. physically and chemically changed. D. neither physically nor chemically changed.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda