Answer: Alex should get 300 Calories from carbohydrates, which is about 33 grams. This snack is almost 70% of her total grams of carbohydrates per day.
Answer:
Mass is the amount of matter in an object and does not change with location.
Explanation:
D. Since it's atomic # is 14 it has 14 electrons and it has 4 valance electrons because it is 4 over.
Answer:
Molarity of HCl = 1.6M
Explanation:
The chemical reaction equation is;
HCl(aq) + NaOH(aq) —> NaCl(aq) + H2O(l)
Now, molarity = number of moles/volume
Thus, for NaOH, we have;
Number of moles = molarity × volume = 2M × (20/1000) L
Number of moles = 0.04 moles
Using the coefficients in the chemical equation above, we can find the corresponding number of moles for HCl.
Number of moles of HCl = 0.04 moles NaOH × (1 mole of HCl/1 mole of HCl) = 0.04 moles of HCl
Thus;
Molarity of HCl = 0.04/(25/1000)
Molarity of HCl = 1.6M
Symbol Element Atomic Radius Electronegativity Ionization Energy
Ca Calcium 194 pm 1 57110 kJ/mol
Ba Barium 253 pm 0.89 3.6 x 10³ kJ/mol
As Arsenic 114 pm 2.18 12310 kJ/mol
Bi Bismuth 143 pm 2.02 8520 kJ/mol
Based on the above information.
The element with the largest radius is Ba.
The element with the highest electronegativity is As
The element with the hightest Ionization energy is Ca.
