Answer:
Wood
Explanation:
It is because sound is a longitudinal wave
Independent- The vinegar,corn syrup, distilled water
Dependent- The mass of the egg
Constant- the egg and the beaker
Answer:
H₂ + CuO → Cu + H₂O
Explanation:
We want to balance the given equation;
H₂ + CuO → Cu(OH)₂ + H₂O
To balance this we have to make sure the number of each element on the left is equal to the number of each element on the right.
Thus, the correct balanced equation is;
H₂ + CuO → Cu + H₂O
Answer:
0.0821 atm.L/Kmol
Explanation:
At stp, the values temperature, pressure and volume is given below:
Pressure (P) = 1 atm
Temperature (T) = 273 K
Volume (V) = 22.4 L
At stp, 1 mole of a gas occupy 22.4L.
Number of mole (n) = 1 mole
Gas constant (R) =?
The ideal gas equation is given below:
PV = nRT.
With the above equation, the gas constant R can be obtained as follow:
1 atm x 22.4L = 1 mole x R x 273K
Divide both side by (1 mole x 273 K)
R = (1 atm x 22.4L) / (1 mole x 273 K)
R = 0.0821 atm.L/Kmol
Therefore, the gas constant is 0.0821 atm.L/Kmol
