A In order to determine the calories in a food sample, a chemist prepares their calorimeter with 100 ml of water. The chemist took an initial temperature of 22 degrees Celsius. After the food source burned, the chemist then determined thethe final temperature was 42 degrees celsius. What was the change of temperature of the water?
B. A chemist determines that there are 8,368 joules in a food. Calculate the number of food Calories in this substance
The sample burned was massed as 1,500 milligrams. Using the Calories you determined above calculate the Calorie density (Calorie/gram) of this food sample,

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

the ratio of the conjugate base to the acid required to attain the desired ph.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

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