Answer:
a) longitudnal waves
b)parallel to vibration
c) transverse waves .it is used in a ripple tank
For the given 200 g of 95% ethanol solution, ethanol is 190g and water is 10g. We determine the number of moles per component.
ethanol: (190 g ethanol) / (46 g/mole) = 4.13 moles
water: (10 g water)/(18 g/mole) = 0.55 moles
Total moles of the solution is 4.68 moles
Mole fraction of water: = 0.55 moles/4.68 moles = 0.117
Is is 96.3% you do ((actual yield)/(theoretical yield)) * 100
Hello!
In this chemical equation, there are two main elements. Those elements are magnesium (Mg) and oxygen (O).
Molecules are a group of atoms bonded together, and in this case, the oxygen molecules is O2, but not 2MgO because there are two different molecules in this compound.
Coefficients are a number that multiply an entire molecule, and are also placed in front of it. In this case, O2 has no coefficient, but a subscript of 2. But, every molecule in this equation must have a coefficient and if add a coefficient of 1 to the oxygen molecule, it does nothing to the overall balancing of equations.
Therefore, the coefficient to the oxygen molecule is choice C, 1.
Answer:
There is 6 ways substance can change phase. They are melting, freezing, evaporating, condensing, sublimination, and deposition.
Hope this helped
Explanation:
