The following values will be useful in answer masses of subatomic particles: electron 0.00055 amu neutron 1.0087 amu proton 1.0073 amu 1 cal 4.18j 1 j 1 kg. m2/s speed of light = 3.00x 10% m/s 6. calculate the mass deficiency of o. the actual mass of an o atom is 16.9991 amu. a0.153 amu b. 0.152 amu c. 0.148 amu 17 17 8
u.142 amu deficiency? 30 7. the mass of one atom ofsilicon is 29.9738 amu. what is its mass 14 a. 1.742 amu b. 1.757 amu c. 0.275 amu d. 0.413 amu e. 0.272 amu 20 ne in! caleulate the binding energy for no in 0 1731 almol

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

Drug abuse will not lead to physical and psychological dependence. true or false ?