Under what conditions are two atoms different isotopes of the same element

What is the name of the element above? a. hydrogen b. helium c. lithium d. boron

What kind of glass is the following Si, O, Na, B, Al no plastic, no visible change, will shatters to high impact? 1. Pyrex Glass 2. Laminated soda-lime glass, 3. Ordinary Soda-Lime Glass, 4. Heat-tempered soda-lime glass?

In the chemical compound C2H2, how many pairs of electrons are shared between the two carbon atoms?

5. What happens to the mass when you change the volume? It decreases

What do all four of these molecules have in common? A. They are essential to life. B. They carry signals. C. They are water soluble. D. They act as a source of energy

How does pressure affect the solubility of gases?

Under what conditions are two atoms different isotopes of the same element

When hydrogen atoms are added to an unsaturated oil to cause more complete saturation, it produces?

A 5.00 g mixture of methane (CH4) and ethane (C2H6) is combusted in oxygen gas to produce carbon dioxide and water. If 14.09 g of CO2 is produced, how many grams of methane was in the original 5.00 g mixture?

Which list of elements contains only metals? A. carbon, iodine, tin B. tin, copper, cesium C. helium, iron, copper D. iodine, carbon, argon