Be 2+ is the charged ion of Be
-same amount of protons and neutrons, but has 2 less electrons, giving it full valence shell and + 2 charge
Thermal energy<span> is </span>energy<span> possessed by an </span>object<span> or system due to the movement of particles within the </span>object<span> or the system</span>
The balanced chemical reaction is:
C4H10 + 5O2 = 4CO2 + 2H2O
We are given the amount of butane to be used in the reaction. This will be the starting point of the calculations.
2.50 g C4H10 ( 1 mol C4H10 / 58.14 g C4H10) ( 4 mol CO2 / 1 mol C4H10 ) = 0.21 mol CO2
V = nRT / P = 0.21 mol CO2 (0.08206 atm L/mol K) 320.15 K / 1.04 atm = 5.30 L CO2
Answer;
= C3H5
Explanation and solution;
1 mole of CO2 contains 44 g, of which 12 g are carbon
Thus, mass of carbon in 9.32 g will be;
(12/44) × 9.32 g = 2.542 g
Mass of Hydrogen in 3.18 g of water;
= (2/18) × 3.18 g = 0.353 g
we then find the number of moles;
Moles of carbon ; 2.542 /12 = 0.2118 moles
Moles of Hydrogen = 0.353 moles
The ratios of C ; H ;
= 1 : 0.353 /0.2118
= 1 : 5/3
= 3: 5
Therefore; the empirical formula of the hydrogen carbon is; C3H5
Answer:
feldspar. it can scratch gypsum and apatite since there number is lower, and can be scratched by quartz because it has a higher number