Answer:
a physical change does not change the composition (what it's made of) as a chemical change would.
Answer: a force acting between two different molecules
Explanation:
APEX
A dependible common measurement
<span>Fluorine
For the group 17 elements (Halogens), the ionization energy decreases as the period increases (the elements become less reactive). And since of the 4 elements given, fluorine is from the lowest period, it has the highest ionization energy.</span>
Answer:
389 mL solution
Explanation:
Step 1: Given data
- Concentration of the NaCl solution: 0.900% (m/v)
- Mass of sodium chloride: 3.50 g
- Volume of saline solution: ?
Step 2: Calculate the volume of saline solution
The concentration of the NaCl solution is 0.900% (m/v), that is, there are 0.900 g of NaCl every 100 mL of solution.
3.50 g NaCl × 100 mL solution/0.900 g NaCl = 389 mL solution