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Coal and petrol are called non-renewable sources of energy, why

An impure sample of table salt that weighed 0.8421 g, when dissolved in water and treated with excess AgNO3, formed 2.044 g of AgCl. what is the percentage of NaCl in the impure sample?

Which best describes why NH4 + can form an ionic bond with Cl-? Its outermost shell gains one or more electrons from Cl-. Its positive charge is attracted to the negative charge of Cl-. It has a negative charge that is spread over the entire ion.

2. How many electrons does barium have to give up to achieve a noble-gas electron configuration? 1 2 3 4 ... ?

What is the half-life of a radioisotope if a 40 g sample becomes 10 g after 20 minutes?

At stp which gas will diffuse more readily than ne

Which sequence represents a correct order of historical developments leading to the modern model of the atom?

If you were designing a pot to cook spaghetti in, which parts would you make from good conductors of heat? which parts would you make from insulators? explain your answer.

1. Starting with 9.3 moles of O2, how many moles of H2S will be needed and how many moles of SO2 will be produced in the following reaction? SHOW YOUR WORK! 2 H2S + 3 O2 - > 2 SO2 + 2 H2O

What is the oxidation state of an individual sulfur atom in so42-?

If the partial pressure of a gas over a solution is halved, how has the concentration of gas in the solution changed after equilibrium is restored?