Answer:
3 molecules
Explanation: i got it right on the test, also because the 2 other ones are compounds because they have hyrdogen and oxygen attached and molecules just have particles of one element attached
Answer:
E(Z) > E(X)
Explanation:
X => 4.2 x 10¹¹J/50 Nucleons = 8.4 x 10⁹ J/Nu
Z => 8.4 x 10¹¹J/80 Nucleons = 1.1 x 10¹⁰ J/Nu
E(Z)1.1 x 10¹¹J/Nu > E(X)8.4 x 10⁹J/Nu
Answer: Option (d) is the correct answer.
Explanation:
The given reaction will be as follows.

In the ionic form, the equation will be as follows.
........ (1)
............ (2)
Hence, for the net ionic equation we need to add both equation (1) and (2). Therefore, the net ionic equation will be as follows.
Now, balancing the atoms on both the sides we get the net ionic equation as follows.
Answer: 13.2%
Explanation:
Mass of the sample = 100g
MM of CO2 =12+ (16 x 2) = 44g/mol
Number of mole of CO2 present in the sample = 0.3
Mass conc. Of CO2 present = 0.3 x 44 = 13.2g
Percentage of CO2 in the sample = (13.2 / 100) x 100 = 13.2%