At STP, an element that is a brittle solid and a poor conductor of heat and electricity could have an atomic number of

(1) 12 (3) 16

(2) 13 (4) 17

A sample of air with a volume of 2.20m3 at a pressure of 105 KPa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 KPa. What is the new volume? 6.9 1.34 2.56 43.0 2.88

What are the adverse effect of chemistry

How does chemistry affect cancer

What is the number of cations is present in 1.17 g of sodium chloride? Given Na=6*10power 23 mol

In this experiment, you will change the temperature and particle size of the antacid tablet and observe how these changes affect reaction. In the space below, write a scientific question that you answered by doing this experiment

Isomeric pair that represent a chain, positional and functional group isomerism for CH3CH2CH=CH2

At 25 °C, what is the hydroxide ion concentration, [ OH â ], in an aqueous solution with a hydrogen ion concentration of [ H + ] = 5.0 à 10 ^â 4 M?

Question 10 OT 20 10. In an oxidation reaction the oxidizing agent: A. Is oxidized B. Is reduced c. Takes oxygen from the target substance D. Adds hydrogen to the target substance

PCL3 the proper name

Which is the best describes electrons