Una investigación del enfoque positiva de las ciencias sociales​

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?