Answer:
C. 3
Explanation:
12.0 - 3 significant figures 1,2 and 0, because 0 is after decimal point.
Answer:
Darker colored items absorb more of the sunlight.
Explanation:
Lighter colored item tend to reflect more of the sunlight
Answer:
Explanation:
If an antacid has sodium hydrogen carbonate/Calcium carbonate, it reacts with HCl as shown
NaHCO₃+ HCl → NaCl + CO₂+ H₂O
Antacid acid salt gas water
CaCO₃+ 2HCl → CaCl₂+ CO₂+ H₂O
Antacid acid salt gas water
The formation of gas CO₂ is shown by brisk effervescence when the antacid (sodium hydrogen carbonate/calcium carbonate) reacts with HCl (acid). So CO₂ is the additional product formed and its formation is supported by observation of brisk effervescence as HCl is added to the antacid.
The answer is B - vegetable oil.
Explanation:
The properties of liquids depend on the attractions the molecules of the liquid have for each other and for other substances.
Liquids can dissolve certain other liquids, depending on the attractions between the molecules of both liquids.
Polar liquids, like water, dissolve other liquids which are polar or somewhat polar.
Polar liquids, like water, do not dissolve non-polar liquids like oil.
