Answer:
Mendeleev arranged the elements in order of increasing relative atomic mass . When he did this he noted that the chemical properties of the elements and their compounds showed a periodic trend .
Explanation:
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Answer:
0.017 mol
Explanation:
CH3COOH - acetic acid - we can write as C2O2H4
From formula C2O2H4 we can see that ratio C: O = 2:2 = 1:1, so number of moles C and O are the same.
So if we have 0.017 mol C, we should have 0.017 mol O.
Here,
Heat gain by the first sample of water + Heat lost by the second sample of water is equal to zero (0).
Now, Mass of water sample one = 108 g (given)
Mass of water sample two = 66.9 g (given)
Temperature for water sample one =
Let, temperature for water sample two =x
And, final temperature =
Now,
where, = final temperature
= initial temperature
Substitute all the given values in above formula:
[tex x =84.81^{0}C [/tex]
Answer:
2Mg(s) + O₂(g) → 2MgO(s)
Explanation:
2Ca(s) + Cl₂(g) → CaCl₂(s) (incorrect)
Ca(s) + Cl₂(g) → CaCl₂(s) (correct)
Li(s) + Cl₂(g) → 2LiCl(s) (incorrect)
2Li(s) + Cl₂(g) → 2LiCl(s) (correct)
2C(s) + O₂(g) → CO₂(g) (incorrect)
C(s) + O₂(g) → CO₂(g) (correct)
Answer:
#chemical drain cleaners, plungers, handheld, drain augers, air burst cleaners, and home remedy drain cleaners are typically applied to the problem of a clogged then electric drain cleaners sewers jetters or such mechanical devices are usually required
and Ammonia is a colorless highly irritating gas with a sharp suffocating odor. It dissolves easily in water to form ammonium hydroxide solution which can cause irritation and burns. Ammonia gas is easily compressed and forms a clear, colorless liquid under pressure.