Answer:
1) mass and type of material
2) type of material
3) temperature
Explanation:
Answer:
Explanation:
Two sig digits means that 5239 becomes 52 with some zeros behind it. How many?
There were 2 numbers after the 2. So two sig digits would become 5200
If the third digit from the left is a 5 or more then the answer would be
5300.
<span>Pros of Natural Gas:
</span><span>1. Produces Less Soot
</span><span>2. Abundant Supply
</span><span>3. Infrastructure in Place
</span>
<span>Cons of Natural Gas:
</span><span>1. Highly Inflammable
</span><span>2. Greenhouse Gas Emissions
</span>3. <span>Non-Sustainable:
</span>
Hope that helps! *if you need more let me know*
Molarity is the most convenient way to express concentration.
Mathematically, molarity is expressed as
In present case,
mass of solute (KCl) = 36 g
molecular weight of KCl = 74.55 g/mol
volume of solution = 100 ml = 0.1 l
∴ Molarity =
= 4.829 M
Thus, conc. of saturated KCl at 20 oC is 4.829 M
<span>Molten barium
chloride is separetes:</span><span>
BaCl</span>₂(l) →
Ba(l) + Cl₂(g), <span>
but first ionic bonds in this salt are separeted
because of heat:
BaCl</span>₂(l) →
Ba²⁺(l) + 2Cl⁻(l).
Reaction of reduction
at cathode(-): Ba²⁺(l) + 2e⁻ → Ba(l).
Reaction of oxidation
at anode(+): 2Cl⁻(l) → Cl₂(g) + 2e⁻.
The anode is positive
and the cathode is negative.
