<em>A</em><em> </em><em>time</em><em> </em><em>machine</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>device</em><em> </em><em>which </em><em>can</em><em> </em><em>transport </em><em>an</em><em> </em><em>object</em><em> </em><em>or</em><em> </em><em>person</em><em> </em><em>back</em><em> </em><em>in</em><em> </em><em>time</em><em> </em><em>or</em><em> </em><em>in</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>future</em><em>.</em><em> </em>
<em>Ali</em><em> </em><em>Razeghi</em><em> </em><em>is </em><em>the </em><em>person </em><em>who </em><em>invented</em><em> </em><em>the</em><em> </em><em>time</em><em> </em><em>machine</em><em>.</em>
HNO3 is Nitric acid
HNO3 can be called hydrogen nitrate if gaseous so watch out for state symbols...
HNO3(l) =nitric acid
HNO3(g) = hydrogen nitrate
saltpetre is a potassium salt KNO3
Nitrous acid is HNO2
hope that helps
We may not see notice it but plate tectonics actually have a "recycle" process. However, scientist reported that it happens in a span of 500 million years. Over the years, the oceanic crusts are pressured to the topmost layer of the mantle causing the oceanic crusts to melt and mix with the Earth's mantle. Such crust blending results to the formation of volcanoes underwater. In time, the said volcanoes would erupt causing the formation of new oceanic and continental crusts.
Answer:
Argon has three electron shells. The third shell is filled with eight electrons. That is why it does not easily combine with other elements.
Explanation:
The part that says all atoms of a specific element always have the same mass. Isotopes of an atom have varying masses compared to the standard version of the element.