Which pair of elements can be used to determine the age of a fossil that is over one billion years old?

A laboratory flask has a valume of 0.750L. What is the valume of this flask in millimeters?

When combining with nonmetallic atoms, metallic atoms generally will (a) lose electrons and form negative ions (b) lose electrons and from positive ions (c) gain electrons and from negative ions (d) gain electrons and form positive ions

Which compound has the strongest hydrogen bonding between its molecules? A) HBr B) HCI C) HF D) HI

Positrons are spontaneously emitted from the nuclei of (1) potassium-37 (3) nitrogen-16 (2) radium-226 (4) thorium-232

What are two sources of the heat and pressure that cause metamorphism?

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?