Which scientist is credited with developing the first scientific atomic theory?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !