If you live in the united states , why do you think you need to worry about the problems of other countries?

Hello!

There are several different reasons why we might need to worry about the problems of other countries.

First, we import goods from countries all over the world. If there are problems with other countries, it may limit what we can import and export to and from the country. If we are no longer able to receive any goods, it may have an impact on the U.S. if the people suddenly don't have a certain good/product available.

We also need to worry about the problems of other countries when it comes to partnering and working with other nations. If the other countries are working with enemy nations of the U.S., the United States will not be able to partner with them. The problems that other countries have could eventually spread to the U.S. if we are not aware of them and not careful about our decisions.

I hope this helps you! Have a lovely day!

- Mal

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz

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