X is an element below calcium in Group ii of the periodic table x would be expected to. i-react very vigorously with cold water. ii-ionise move readily than calcium. iii-react slowly with hydrochloric acid.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

yes

ya te ayud espera

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl