Answer:
Endothermic
It absorbs heat
1.20 × 10³ kJ
Explanation:
Let's consider the following thermochemical equation.
2 H₂O(l) → 2 H₂(g) + O₂(g) ΔH = 572 kJ
Since ΔH > 0, the reaction is endothermic, that is, it absorbs heat when H₂O reacts.
572 kJ are absorbed when 36.03 g of water react. The heat absorbed when 75.8 g of H₂O react is:
75.8 g H₂O × (572 kJ/36.03 g H₂O) = 1.20 × 10³ kJ
⭐️The answer is ⭐️
As weight = mass × g so we have more weights on earth than on moon. Explanation: This is because gravitational force is immediately proportional to the mass of an object. Greater the mass, greater will be the gravitational force exerted by it and thus, more will be our weight
<span>0.929 g/ml
Density in this case is defined as mass per volume. Or in other words, mass divided by volume. So you simply divide 929 grams by 1000 ml. Giving
929 g / 1000 ml = 929/1000 g/ml = 0.929 g/ml</span>
ANSWER:
try the first one!<em> ok </em>
if i answer it right you have to make me brainliest OK DON"T LIE YOU SAID THAT OK THE ANSWER IS UP THERE and is this a quiz or a assigment!! or a exam or something like that
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