Two atoms that are isotopes of one another must have the same number of what? a. neutrons b. protons c. all particles d. atomic mass

Two  atoms that  are isotopes of  one another that   must the same number of   protons ( answer B)

Explanation

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

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