An element's atomic number is 66 how many protons would an atom of this element have

What rules should you follow when multiplying and dividing? Check all that apply.

Since all atoms have negatively charged electrons, shouldn't every sample of matter have a negative charge? Explain.

How does hurricanes affect the cryosphere?

If a graduated cylinder has a current water level of 30ml and you add an object which causes the water level to rise to 53ml. What is the volume of the object you placed in the water?

What will happen to the pressure inside a container of gas if some of the gas is allowed to escape? Select one: a. there will be no effect on the pressure b. The pressure will increase c. the effect is impossible to determine d.

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

What are 3 properties of carbon?