Sodium and phosphorus combine to form Na3P. The name of this compound is.

Which elements do not usually interact with other elements? Question 4 options: noble gases (inert gases) metalliods Halogens metals

If I hit myself, and it hurts, does that make me weak or strong? A. Yes B. No

A transfer plane is flying east at 275 km/h. A worldair plane is flying west at 275 km/h. Are the two planes flying at the same velocity? Explain your answer

Nigtrogen and hydrogen combine to produce ammonia. N2+H2? NH3 Which set of coefficients balances the equation? A) 1,1,1 B) 1,1,2 C) 1,3,2 D) 2,3,2

Which area receives about the same amount of precipitation as the Arctic and Antarctic tundra? A. The Great Plains of the America Midwest B. The African savanna C. The Amazon rain forest D. The Gobi Desert

Oil flows upward in the wick of a lantern because of the liquid property called A. meniscusity. B. capillarity. C. density. D. viscosity.

A high-mass star has more "fuel" than a low-mass star. which lives longer? why?

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

Suppose you want to know if the color of peoples hair affects how warm it can keep their heads. describe the skills you would use to conduct an experiment to test your inquiry

The mass is increased by a factor of four. What is true about the period? Choose the best answer. The period remains unchanged. The period increases by a factor of four. The period is halved. The period doubles.