Aparticular ring contains both 18 k gold and sterling silver, with the two metals in an intricate design resembling braided ropes. the total mass of the ring is 15.0 g, and a jeweler wants to determine the masses of gold and of silver present. the clever jeweler places the ring into some hot water, heating it to a temperature of 87.6°c, and then drops the hot ring into 18.0 g of water at 21.8°c. when the ring and the water reach thermal equilibrium, the final temperature is 24.0°c. what mass of gold is present in the ring?

specific heats: 18 k gold: 0.132 j g–1 °c–1 sterling silver: 0.245 j g–1 °c–1 water: 4.184 j g–1 °c–1

i think its 5049.

i hope this !

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.