Answer:
9
option d 9
pH of a 10^-5 M HCI solution is 9
<span>Answer: B) sound waves</span>
<span> There are 2 classifications of waves according to the media of propagation.</span>
<span> <span>Mechanical Waves – needs a medium, an example is sound waves. Sound waves do not travel through a vacuum. Sound waves move by replacing one particle with another. Particles vibrate and that is why we hear the sounds.</span> <span>Electromagnetic Waves and electrostatic waves are one but the same. They do<span> not require a medium. – an example is light waves.</span></span> </span>
C. Metal oxide reacting with coke in a high temperature because I don’t think it reacts with coke during metal smelting (not 100% sure though)
M1V1 = M2V2
M1 = 3.000 M
V1 = 0.8000 L
M2 = ?
V2 = 2.00 L
3.000 M • 0.8000 L = M2 • 2.00 L
Solve for M2 —> 1.20 M NaOH