What is the definition of crust?

A. How many real solutions does the equation 0.2x^5-2x^3+1.8x+k=0 have when k = 0? b. How many real solutions does it have when k = 1? c. Is there a value of k for which the equation has just one real solution? d.

Which of the following is not true as we move down a group of s and p-block elements in the periodic table

Nuclear fusion is the process used to generate electricity in nuclear power plants. is the process in which a large nucleus spontaneously splits into two or more smaller nuclei.

A solid, pure substance containing just carbon and hydrogen is found to contain 35.8g of carbon and 3.72 g of hydrogen. how many grams of carbon will be in a 4.82 g sample of the solid?

What is the number of proton in chlorine?

The week of Feb. 29, 2016, PBS aired a documentary on sending humans halfway to space in the late 1950's using balloons. They filled different balloons with different gases - some with H2 and some with He. Which balloon should go higher? Why?

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.

A certain ore is 34.4% nickel by mass. How many kilograms of this ore would need to dig up to have 30.0g of nickel?

Are the chemical reactions that take place when a battery connected endothermic or exothermic