Answer:
Potassium Dichromate is an orange to red colored, crystalline, inorganic compound that emits toxic chromium fumes upon heating. Potassium dichromate is highly corrosive and is a strong oxidizing agent. This substance is used in wood preservatives, in the manufacture of pigments and in photomechanical processes, but is mainly replaced by sodium dichromate. Potassium dichromate primarily affects the respiratory tract causing ulcerations, shortness of breath, bronchitis, pneumonia and asthma but can also affect the gastrointestinal tract, liver, kidneys and immune system. This substance is a known human carcinogen and is associated with an increased risk of developing lung cancer and cancer of the sinonasal cavity. (NCI05)
The answer would be: <span>dependent on the number of particles
If you see the ideal gas formula you know that volume is directly related to the number of particles.
Closed container volume could influence the pressure that will change the volume but the question seems to talk about open container. If the container is not closed, then the volume of container won't have any effect.
Mass is related to the number of particles, but not directly related to volume so this option is a bit ambiguous.</span>
FeCl2 = <span>Iron(II) chloride
hope this helps!</span>
Answer:
135 mile marker will the car reach after 2 hours.
Explanation:
Speed of the car = 55 mile/hour
Distance covered in 2 hours = d
The direction of the car is in decreasing marker numbers which mienas that car had started from end where 145 mile marker was present.
So, the marker appearing after travelling 2 hours will be:
145 - 110 = 135
135 mile marker will the car reach after 2 hours.
Answer : The molarity of the ion is 
Explanation : Given,
Density of sample = 1.00 g/mL
Concentration of 
= 42 mg/kg
First we have to calculate the volume of sample.
Let us assume that the mass of sample be 1 kg or 1000 g.
(1 L = 1000 mL)
Now we have to calculate the moles of
As we are given that,
Mass of in 1 kg of sample = 42 mg = 0.042 g
Molar mass of Ca = 40 g/mole
Now we have to calculate the molarity of the ion.
Therefore, the molarity of the ion is
