How do you know that a combustion reaction is exothermic

Is the use of reliable knowledge for a practical purpose.

An atom with an atomic number of 11 will have how many electrons in its outermost orbit

18 mL of solvent was added to 82 mL of distilled water for a final solution volume of 100 ml. What is the percent concentration of solvent in the final solution?

What is the normality of a solution containing 14.8 g of Ca (OH) ₂ in 250.0 mL?

The molar solubility of ba3 (po4) 2 is 8.89 x 10-9 m in pure water. calculate the ksp for ba3 (po4) 2. the molar solubility of ba3 (po4) 2 is 8.89 x 10-9 m in pure water. calculate the ksp for ba3 (po4) 2. 5.55 x 10-41 5.33 x 10-37 8.16 x 10-31 6.

How many moles of FeO are produced if 8 moles of CuFeS, are consumed?

Will mark as Brainliest. How much energy is released when 16.5 g of steam is condensed at 100 degrees Celsius? -37290 J -3729 J -136 J -136 kJ

What is the mole fraction, x, of solute and the molality for an aqueous solution that is 16.0 % NaOH by mass

What is the square root of 54554? What is the square root of 35654?

Halogens have ... Electron affinity