Answer:
4 th image
Explanation:
water is being boiled n the 4th image indicating that the change between liquids and gasses is water vapor.
Explanation:
In general, to balance an equation, here are the things we need to do:
Count the atoms of each element in the reactants and the products.
Use coefficients; place them in front of the compounds as needed.
Explanation:
From the image given;
Number of Protons = 1
Number of Electrons = 1
Number of Neutrons = 0
Positive Charge (From the protons) = + 1
Negative charge (From the electrons) = -1
Atomic mass = Mass of Proton + Mass of Neutron = 1.00727647 amu + 0.000549 amu = 1.00784 amu
Overall Charge = Positive charge + Neutral charge = 1 -1 = 0 (Neutral atom)
X₂O₃ ===> 3 moles of oxygen == > 48 g O
Molar mass of X₂O₃-------------- 48g O
30,6g --------------------------------- 14,4g
Molar mass = (30,6×48)/14,4
Molar mass = 102g
Molar mass of X₂ = 102 - 48 = 54g
Molar mass of X = 54/2 = 27g
X ==> 27 g/mol ==> Al
X₂O₃ ==> Al₂O₃
:)
The answer is B tryptophan is a amino acid
