What is the charge on an electron?

a candle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed in side the jar, why?

Why Does A Candle Go Out When You Blow On It?

What is the mass of 2.64 moles of water

If the pressure of a gas is 2.43 atm what is it's pressure in kpa

A student collects 285mL of nitrous oxides gas at 15.8°C and a pressure of 1.05atm. The next day, the same sample occupies a volume of 292mL at a temperature of 11.2°C. What is the new pressure in kPa?

If a scientist creates a new rock-like substance in a laboratory, why wouldn't this type of material be classified as a true mineral?

Select the correct responses to the questions from the drop-down menus. Which wind blows cool air inland during the day? Which wind blows cool air toward the sea at night? Which winds blow steadily from specific directions and over long distances?

Consider the balanced equation for the following reaction: 3Ca (ClO3) 2 (aq) + 2Li3PO4 (aq) → Ca3 (PO4) 2 (s) + 6LiClO3 (aq) Determine the theoretical yield of LiClO3 (aq) in grams if the percent yield of LiClO3 (aq) is 81.0% and 9.

What is the total number of valence electrons in a sulfide ion in the ground state? (1) 8 (3) 16 (2) 2 (4) 18

Write the name and formula of the compound made of magnesium and fluorine