Larry made this picture to represent a chemical reaction:
There are two circles on the left, one white and the other gray, and there is a plus sign between them. The white circle is labeled X and the gray circle is labeled Y. An arrow pointing right is shown on the right of the circles. Two circles, one white and the other gray are shown on the right. A small portion of the two circles overlap and the label below the circles is XY.
Which of the following statements best explains the type of chemical reaction represented by Larry's picture? (5 points)
It represents a synthesis reaction because two reactants form one product.
It represents a synthesis reaction because the total mass of the product is less than the mass of the reactants.
It represents a decomposition reaction because one reactant breaks apart and forms two products.
It represents a decomposition reaction because the same atoms are present in the reactants and products.
Answers: 3
Chemistry, 22.06.2019 14:00, hammackkatelyn60
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 22.06.2019 17:00, emma3216
In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added
Answers: 1
Larry made this picture to represent a chemical reaction:
There are two circles on the left, one wh...
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