During a chemical reaction, energy is required during the what or chemical bonds

Buku Teks: Halaman 83 - 95 Sistem Peredaran Darah Mengitlak maksud sistem peredaran darah bagi haiwan. kapkan pernyataan di bawah. TP2 ete the statements below.

Explain how you would prepare a saturated solution of sugar in water. how would you them make it a supersaturated solution?

A scientist is interested in finding out the effect of soil quality on crop quality. Would an experimental or observational study design be more appropriate?

What was John Dobereiner's contribution to the development of the periodic table

What do ionic bond and covelant bond have in common? A) Both types of bond involve only one electron B) both type of bonds involve valance electrons C) electrons are transferred from one atom to another in both types of bonds D) Electrons are shared

If 1 mol of a gas in a container occupies a volume of 12 l at a pressure of 1 atm, what is the temperature of the gas in kelvins?

200 lb/in" = ? tons/ft?

What variable is not used in the combined gas law

What is bromic acid

Which answer choice best explains why atoms of carbon-14 (C-14) are unstable?