A solution of a metal carbonate ( X2CO3) was prepared by dissolving 7.64g of the anhydrous solid in water to give one liter of a solution. 25cm3 of the solution reacted with 27 cm3 of 0.1 M of HCl. calculate the relative formula mass of metal x ​

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a