Answer is
<span>a.Scientific investigation discovers new information that can be used in technological design, and technological design provides new products that can further scientific investigation.
Scientific investigation helps to discover new information, such as greater insight into how the world works. This information can be applied to technological design, illuminating new ways to do things. </span>
Ag+1and S-2and then you have to offset it..because Ag has one positive charge and S has 2 negative charges you then need one more Ag+1 to cancelled out the charges with S-2 as result the formula is Ag2S
Answer:
- 13,150.6kJ
Explanation:
CH4 + 2 O2 ------> CO2 + 2 H2O ΔH= – 890 kJ
The ΔH is enthalpy change of combustion , which is the heat is either absorbed or released by the combustion of one mole of a substance.
ΔH=−890 kJ/mol (released in the combustion of one mole of methane)
using the molar mass (in grams )of methane to get moles of sample
(237g × 1 mole of CH4)/16.04g=14.776 moles of CH4
Since 1 mole produces 890 kJ of heat upon combustion, then 14.776 moles will produce
ΔH = 14.776moles of CH4 × 890kJ/1mole of CH4
=13,150.6kJ
Therefore ΔH = - 13,150.6kJ
Answer:
81 °C
Explanation:
I don’t know, I just know :)