Answer:
25 cm3 of 0.15 mol dm-3 hydrogen peroxide
Explanation:
Not 100% with this one was a bit tricky.
Answer:
Option D
Explanation:
Discovering microwaves would be pure science. Using them in a constructive way would be applied science.
To find the weight of the gas you need to find the number of moles of using ideal gas formula. Remember to change the temperature unit to Kelvin and the pressure to kpa or atm
PV=nRT
n= PV/RT
n= 699 mmHg* 0.1333kpa * 0.357 L/ 8.314 kpa*L / mol*K * (45 +273.15)K
n=<span>0.012 moles
</span>
weight= n * molecular weight
weght= 0.012 *92.448 g/mol= 1.109 grams
B. Infrared light I'm pretty sure correct me if I am wrong hope this helped
