Answer:
B. To change from a liquid state to a solid state is called Freezing
Answer:
It should b KNO3
Explanation:
one Potassium (K) and three Nitrite (NO3)
Frequency is defined as the number of waves per second. In this machine 25 waves pass in one second.
We need to calculate the number of waves that pass a particular point during one second.
During 2 seconds -25 waves
Therefore in one second - 25/2 = 12.5 waves/s.
1 wave per second has the unit Hertz (Hz)
Therefore answer is 12.5 Hz
That would be C. Organelles
Answer:
95% Copper and 5% Zinc
Explanation:
Easy stuff read in the chemistry book...
