Yes, there will definitely be a time when we run out of fossil fuels to burn. It's often claimed that we have enough coal to last hundreds of years. But if we step up production to fill the gap left through depleting our oil and gas reserves, the coal deposits we know about will run out in 2088.
Burning- just big heat, from bruning forest
Answer:
first ionization energy is the amount of energy required to remove an electron from isolated gaseous atom
so when atomic no increase across aperiod the ionization energy become lower
it's my opinion am not sure ok
Answer:
103.7 grams
Explanation:

Al: 1 * 26.98 = 26.98
O: 2 * 16.00 = 32.00
H: 2 * 1.01 = 2.02
26.98 + 32.00 + 2.02 = 61.00
*
= 103.7 grams of 
Charles law states that volume of gas is directly proportional to temperature of gas at constant pressure and fixed amount of gas.
V / T = k
where V - volume , T - temperature in Kelvin and k - constant

where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
T1 = 25 °C + 273 = 298 K
T2 = 35 °C + 273 = 308 K
substituting values in the equation,

V = 5.17 L
new volume is 5.17 L