Must new substances be formed when you observe a chemical property? explain

If an isotope of an element has 33 neutrons and a mass number of 64, how many electrons must it have?

What is the molecular formula for se?

What ions will form when baking soda is dissolved in water?

For an alloy containing 50% cu and 50% ni, calculate the amounts of solid s and liquid l presents at 1300c. show that the total nickel content in the solid and liquid phases adds up to 50%. (5')

A snow skier heading down a hill is? (newtons laws)

One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now, how old will you be when light that is leaving Arcturus today reaches earth?

What is melted rock and minerals found below earths crust

What do many bases have in common? A. They often release oxygen gas. B. They often form hydrogen ions. C. They often release hydrogen gas. D. They often form hydroxide ions.

What is 3 tenths+4tenths

A lunar eclipse can only occur at which lunar phase? And what about a solar eclipse?