Please Help :,D 43.5-g of cesium explosively reacts with water to form hydrogen gas and cesium hydroxide. How many moles of hydrogen gas were formed?
2Cs(s) + 2H2O(l) --> 2CsOH(s) + 1H2(g)

Calculate the mass of silver needed to react with chlorine to produce 42 g of silver chloride.
2Ag(s) + Cl2(g) --> 2AgCl(s)

Silver Nitrate reacts with sodium chloride to make the silver chloride and sodium nitrate. When 12.65 grams of silver nitrate is reacted. How many grams of silver chloride are formed?
AgNO3(s) + NaCl --> AgCl(s) + NaNO3(aq)

Calcium Carbonate decomposes into calcium oxide and a common gas, carbon dioxide. When 91.0 grams of calcium oxide is formed how many liters of carbon dioxide gas is also formed from this reaction. First find the number of moles of carbon dioxide gas actually formed in the reaction, then use the following conversion factor: 1 mol CO2(g) = 22.4 Liters of CO2(g)
CaCO3(s) + HEAT --> CaO(s) + CO2(g)

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table