Answer:
see below
Explanation:
16. 1 P₄(s) + 6 F₂(g) → 1 PF₃(s)
17. 2 C(s) + 2 H₂O(g) → 1 CH₄(g) + 1 CO₂(g)
18. 2 HgO(s)→ 1 O₂(g) + 2 Hg(l)
19. 1 CaCO₃(s) → 1 CO₂(g) + 1 CaO(s)
Answer:
333K
Explanation:
Answer is actually 333.15, but to round it off, is 333
Answer is: t<span>he boiling point will increase as the external pressure is increases.
</span>The boiling point<span> of a substance is the temperature at which the </span>vapor pressure<span> of the </span>liquid<span> equals the </span>pressure<span> surrounding the liquid, at that temperature</span><span> the liquid changes into a vapor.
</span><span>The boiling point of a liquid dependes upon the surrounding environmental pressure.</span><span>
</span>
Answer:
6.3986g
Explanation:
The balanced chemical equation of this reaction is as follows:
Pb(NO3)2(aq) + 2KCl (aq) → PbCl2(s) + 2KNO3(aq)
In this equation, 2 moles of KCl solution will produce 1 mole of PbCl2.
To calculate the number of moles of PbCl2 produced, we use the formula:
Molarity = number of moles (n) ÷ volume (V)
0.101 = n/0.46
n = 0.046mol of KCl
If 2 moles of KCl solution will produce 1 mole of PbCl2
Then, 0.046mol of KCl will be react to produce (0.046 × 1/2) of PbCl2
0.046 × 1/2 = 0.023mol of PbCl2
To find the mass of PbCl2 using mole = mass ÷ molar mass
Molar mass of PbCl2 = 207.2 + 35.5(2)
= 207.2 + 71
= 278.2g/mol
0.023 = mass/278.2
mass = 6.3986g
Answer:
Plastic are non reactive to chemical.
Explanation:
Most plastic is chemically inert and will not react chemically with other substances -- you can store alcohol, soap, water, acid or gasoline in a plastic container without dissolving the container itself. ... Because plastic doesn't react chemically with most other substances, it doesn't decay.
