Bubbles, release of gas, change in color, release of a smell, change in temperature, formation of a precipitate,
Best way to answer this problem is to convert all units into SI unit (meter), then compare the output:
0.1 cm = 0.1 x 10^-2 = 1 x 10^-3 m
0.001 m = 1 x 10^-3 m
0.000001 Km = <span>0.000001 x 10^3 = 1 x 10^-3 m
10 mm = 10 x 10^-3 = 1 x 10^-2 m
1000 </span><span>µm = 1000 x 10^-6 = 1 x 10^-3 m
Comparing the results, we find that 10 mm is not equal to 0.1 cm.
The answer is (c)</span>
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Answer:
the tempeture increases
Explanation:
Zn(s) + CuSO4(aq) � ZnSO4(aq) + Cu(s) An important aspect of these experiments is that they are exothermic.
Answer:
Maple syrup will have the higher temperature.
Explanation:
- Adding CaCl₂ to water and maple syrup will rise the temperature of both of them.
Specific heat of maple syrup = 2.01 J/g.°C
.
Specific heat of water = 4.18 J/g.°C.
- Which means that the energy needed to rise the temperature by 1.0 °C of 1.0 g of water (4.18 J) is twice as that needed to rise the temperature by 1.0 °C of 1.0 g of water (2.01 J).
- So, the temperature of maple syrup will be higher than that of water when CaCl₂ is added to both of them.