Which group of the periodic table contains two elements that are gasses at STP

The volume of a gas sample is 405 mL at 10.0 atm and 467 K. What volume, in mL, will it occupy at 4.29 atm and the same temperature?

Rill erosion can eventually evolve into?

Why do scientist repeat the examples of other scientists

Units used to measure the rate of electron flow

A solution is made by mixing 36. g of heptane (C_7H_16) and 16. g of chloroform (CHCl_3). Calculate the mole fraction of heptane in this sol'. Be sure your answer has the correct number of significant digits.

What best describes the bonding in a water molecule? An oxygen atom shares an electron pair with each H atom. An oxygen atom shares a single electron with each H atom. An oxygen atom receives an electron from each H atom.

What does the mass number tell us?

How is shielding effect related to atomic radius?

Nyatakan tiga aktiviti kerja yang melibatkan proses pengurusan projek reka bentuk.

Which technology works in conjunction with electronic collars to enable scientists to track endangered animals?