Intensive properties<span>, such as density and color, do </span>not<span>depend on the amount of the substance present.</span>
Answer:
2, 3, 1, 6.
Explanation:
2H3PO4 + 3Mg(OH)2 --> Mg3(PO4)2 + 6H2O
This is a neutralisation reaction because it is the reaction between acid and base to give a salt and water.
The RHS is the first to be balanced, Mg atom is first balanced, followed by the P atom.
This is because the excess O and H atoms can be balanced on the LHS.
Answer:
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Answer: Hurricane is not a man-made environmental change.
Explanation:
Changes which take place naturally in the environment without any force or work done by man towards causing that change are called non-man made environmental changes.
For example, hurricane is a natural environment change because a hurricane is formed moist and warm air above water surface of sea, oceans or rivers begin to rise.
This rising air is replaced by the cooler air present in the atmosphere. The continuation of this process leads to the formation large clouds and thunderstorms which occurs in the form of hurricane.
Whereas pollution is caused by vehicles driven by man, from chimneys of factories etc. So, it is a man-made environmental change.
Chemical spill can occur due to mishandling by man in laboratories or chemical labs.
Deforestation also occurs by man as they cut the trees for various needs to theirs.
Thus, we can conclude that hurricane is not a man-made environmental change.