Hamburger
Explanation: I ate a hamburger yesterday and methane came out my butt
Answer:
it lost 900J of energy I will assume and that would mean the change in energy is -900J
Explanation:
A law stating that the elements are listed in the order of their atomic number
D - density: 40 mg/ml
V - volume: 175 ml
m - mass: ??
__________
d = m/V
m = V×d
m = 175×40
m = 7000 mg = 7 g
:•)