Answer:
E
Explanation:
A. Is wrong
To prepare chicken noodle soup, several things are needed to be mixed. This is what makes it a mixture
B is wrong
Powerade is not a compound.
C is wrong
The air inside a balloon is usually helium which is an element and not a compound
D. Lead pipe is not a compound
E. Baking soda is a compound as it contains elements in different ratios
called the Avogadro number
N(A)= 6.02 x 10^23 mol^-1
1 mole of SO3 will contain 6.02 x 10^23 mol^-1 of SO3 molecules.
thus, 1.14moles will contain;
= 1.14mol x [3mol O/1mol SO3] x [6.02 x 10^23
atoms O/1mol O]
= 2.05884 x 10^24 oxygen atoms
= 1.14mol x [1mol S/1mol SO3] x [6.02 x 10^23
atoms O/1mol O]
= 6.8628 x 10^23 sulfur atoms
hope this helps:-)
Question 1 is true because it was called Pangea
Question 2 is false because it had a lot of impact on the distribution of species, before the moving continents animals could roam where ever they want but after the splitting of the continents the species were stuck in one place because water separated other continents and land species cant swim.
Answer:
a. Dew point: 48.7°C. Degrees of superheat 26.3°C
b. 
c. 
Explanation:
a. Based on the psychometric chart of air, the specific volume of air at the given conditions is:
The dew point at the specific volume and the 30%-humidity has a value of 48.7°C, it means that there are 75°C-48.7°C=26.3°C of superheat.
b. At 75°C the molar fraction of water is 11580Pa/101625Pa=0.114 moles per cubic meter of feed gas are:
Once the 35°C are reached, the mole fraction of water is 1688Pa/101325Pa=0.017 and remaining moles per cubic meter of feed gas are:
So the condensed moles per cubic meter of feed gas are:
c. Considering the Raoult's law, one computes the pressure as follows:
At 75°C and 30%-humidity, the saturation water vapor pressure has a value of 38599Pa, thus:
Best regards.
Answer:
The reaction between methane and oxygen to yield carbon dioxide and water (shown at bottom) may be represented by a chemical equation using formulas (top).
Explanation:
The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation.
The substances generated by the reaction are called products, and their formulas are placed on the right sight of the equation.
Plus signs (+) separate individual reactant and product formulas, and an arrow (⟶) separates the reactant and product (left and right) sides of the equation.
The relative numbers of reactant and product species are represented by coefficients (numbers placed immediately to the left of each formula). A coefficient of 1 is typically omitted.
