Answer:
B
Explanation:
Relative humidity can be found by subtracting dry bulb reading minus wet bulb reading. The greater the difference, the lower the relative humidity. B as the greates difference, therefore it indicates lower relative humidity.
The reaction is,
H2S + I2 --------------> 2 HI +S
Molar weight of H2S = 34 g per mol
Molar weight of HI =128 g per mol
Molar weight of I2 =254 g per mol
Moles of H2S in 49.2 g = 49.2 /34 mol = 1.447 mol
So according to stoichiometry of the reaction, number of I2 mols needed
= 1.447 mol
The mass of I2 needed = 1.447 mol x 254 g
Sodium acetate<span> contains </span>both ionic and covalent<span> bonds. </span> <span>In </span>sodium acetate<span>, there is </span>ionic<span> bond between sodium and acetate </span>ions<span> and there is </span>covalent<span> bond in the atoms that are bondeed to the carbon atoms. Hope this answers the question.</span>
Answer:
Explanation:
The formula to convert Fahrenheit to Celsius, use the following formula.
We want to convert 98.7 degrees Fahrenheit to Celsius, so we must substitute 98.7 in for degrees Fahrenheit.
Solve inside the parentheses. Subtract 32 from 98.7.
Multiply 66.7 by 5/9.
98.7 degrees Fahrenheit is equal to 37.0555556 degrees Celsius
It comes to from the chemical reaction itself. Exothermic reaction release heat because the energy level of the products is lower than that of the reactants. Therefore, the net enthalpy change of the reaction is negative (-), meaning heat or light (or any other form of energy) is released into the environment. An example of an exothermic reaction is the combustion of fuel.
