Flame colors are produced from the movement of the electrons in the metal ions present in the compounds. When you heat it, the electrons gain energy and can jump into any of the empty orbitals at higher levels Each of these jumps involves a specific amount of energy being released as light energy, and each corresponds to a particular color. As a result of all these jumps, a spectrum of colored lines will be produced. The color you see will be a combination of all these individual colors.
Flat as more oxygen and water can react over it think of it like this would a cube rust faster than a sheet
Reactant C is the limiting reactant in this scenario.
Explanation:
The reactant in the balanced chemical reaction which gives the smaller amount or moles of product is the limiting reagent.
Balanced chemical reaction is:
A + 2B + 3C → 2D + E
number of moles
A = 0.50 mole
B = 0.60 moles
C = 0.90 moles
Taking A as the reactant
1 mole of A reacted to form 2 moles of D
0.50 moles of A will produce 
= 
thus 0.50 moles of A will produce 1 mole of D
Taking B as the reactant
2 moles of B reacted to form 2 moles of D
0.60 moles of B reacted to form x moles of D
= 
x = 2 moles of D is produced.
Taking C as the reactant:
3 moles of C reacted to form 2 moles of D
O.9 moles of C reacted to form x moles of D
= 
= 0.60 moles of D is formed.
Thus C is the limiting reagent in the given reaction as it produces smallest mass of product.
4.658. Accuracy refers to how close the experimental value is to the actual value. Precision is how close a set of data is to one another.
Answer:
Yes , the food can be served.
Explanation:
Given the food here is served at 146°F
- According to FDA(US food and drug administration) Hot foods should be kept at an internal temperature of 140°F or warmer.
- This is the temperature recquired to maintain the bacteria without spoiling the food .
- Dishes related to eggs like quiches or soufflés should be served at a minimum of 165°F
Also given that the temperature of the food being served is 146°F which is greater than 140°F(which is the minimum value) Therefore the food can be served.
