Answer:
first one is a second one is e
Explanation:
Answer:
I think It's C
Explanation:
due to higher waves can get easy transfers and receive those signals for most things, such as radios, TVs, phone signals etc etc
Answer:
4. 273 K and 373K.
Explanation:
Conversion from Celsius to Kelvin ..
Kelvin = Celsius + 273
<span> Positive Ion - Occurs when an atom loses an electron (negative charge) it has more </span>protons<span> than electrons.</span>
Answer:
Acid solutions contain hydrogen ions. The higher the concentration of hydrogen ions, the lower the pH. Strong acids are fully ionised but weak acids are only partly ionised in solution.
Example:
Hydrochloric acid is a strong acid and ethanoic acid is a weak acid.