Therefore the largest atoms are on the left and the smallest on the right. So sodium (Na) has the largest atomic radius, as the valence electrons are the least attracted to the nucleus
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If the hydrogen ion concentration of a solution is 10–10M, is the solution is definitely alkaline. The thing I used to determine that fact is a basic point - pH above 7 is always alkaline, and as a proof, we can see from the task that the concentration of hydroxyl OH- is pretty higher than hydrogen H+, which is a direct characteristic of the alkain solution.Here is a tip for you, I bet it will be useful : >7 = basic <7 = acidic 7 = neutral
Answer: opaque means not able to see through. An example is that a window is not opaque because you can see through it, but a rock is opaque.
Answer:
9m
Explanation:
Given parameters:
speed of caterpillar = 0.05m/s
time taken to move = 3min
Unknown:
distance covered by the caterpillar = ?
Solution:
Speed is defined as the rate of change of distance with time. It is a scalar quantity that does not measure direction but has magnitude;
Speed =
Distance = speed x time
We need to convert the given time to seconds;
1 min = 60s
3 min = 60 x 3 = 180s
Input the variables;
distance = 0.05m/s x 180s = 9m