Answer:
Number of moles of strontium chloride = 0.004 mol
Explanation:
Given data:
Molarity = 0.2 M
Volume = 20 mL
Moles of strontium chloride = ?
Solution;
Formula:
Molarity = number of moles of solute / volume in litter
Now we will convert the volume into litter.
20 mL/1000mL × 1 L
0.02 L
Now we will put the values in formula:
Molarity = number of moles of solute / volume in litter
Number of moles of solute = Molarity × volume in litter
Number of moles of solute = 0.2 mol/L × 0.02 L
Number of moles of solute = 0.004 mol
The small pieces of clay will be the one which likely erodes quickest.
Answer:
Sodium
Explanation:
Its neighbor to the bottom (sodium) has similar properties to lithium. Group trends are very strong for the Group 1 (alkali) and Group 2 (alkaline earths) metals. Group 1 elements behave very similarly to each other.
Answer: P2 = 0.858 atm
Explanation:
Use the combined gas law: P1V1/T1 = P2V2/T2,
where the subscripts are the initial (1) and final (2) states. Temperature must be in Kelvin. We want P2, so rearrange the equation to solve for P2:
P2 = P1(V1/V2)(T2/T1)
Note how I've arranged the volume and temperature values: as ratios. Now it is easy to cancel units and see what is going to happen to the pressure if we lower the temperature. Since the pressure change is a function of (T2/T1), and we are lowering the temperature (T2), we'd expect this to decrease the pressure.
No information is given on volume, so we'll assume a convenient value of 1 liter. Now enter the data:
P2 = (0.917atm)*(1)*(322K/344K)
P2 = 0.858 atm
Answer:
1. absorbs and re-emits infrared radiation
2.three or more atoms in a molecule
Explanation:
research, lots of research.
