Answer:
The correct answer is 25 mL graduated cylinder (it should be used in all the cases)
Explanation:
In order to measure 25.00 ml sample of a solution it should be used a 25 mL graduated cylinder, as it is previously and properly calibrated. The other laboratory glassware, beaker and erlenmeyer, have graduations which are approximate, so they are used when exact volumes are not needed.
ii) graduated cylinder has the least uncertainly. It is more accurate than a beaker or erlenmeyer (to within 1%)
iii) A 25 mL graduated cylinder should be used because it is the most accurate lab glassware (between those were mentioned: beaker, erlenmeyer).
Answer:
not sure
Explanation:
a physical change (can)change.,....
I believe it becomes less dense, bc when you heat something it’s molecules spread further apart.
Opposites attract, like for example magnets, one is positive and the other is negatively charged, they will attract
The correct response I believe is D. The reaction rate increases because the probability of collisions increases as there are more Zn atoms to react.
