Two blocks are made out of different material block one located on the Moon and block two located on earths they both weigh 25 g what true about them

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

What mass of glucose is produced when 54g of water react with carbon dioxide

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent