Answer:
a hard natural coal of high luster differing from bituminous coal in containing little volatile matter and in burning very cleanly is called anthracite . called also hard coal
Explanation:
Answer from Gauth math
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Answer:
Lies predominantly to the left.
Explanation:
In the reaction:
NH4⁺(aq) + Br-(aq) ⇄ NH3(aq) + HBr(aq)
Conjugate acid + Ion ⇄ weak base + strong acid
HBr is a strong acid whereas NH3/NH4⁺ are the weak base and its conjugate base. A strong acid as HBr dissociates completely in solution as H⁺ and Br⁻. That means in solution you will never have HBr without dissociation doing the reaction:
<h3>lies predominantly to the left.</h3>
Freezing point is the temperature at which a substance undergoes a phase transition from liquid to solid state. Water converts from liquid state to solid ice at a temperature of 
.
Mass is the amount of matter contained in a substance. The SI unit of mass is kilogram. 1 kilogram is equal to 1000 g. One kilogram is defined as the mass of one cubic decimeter of water at the freezing point of water.
<span>Answer:
p(def) = .05, p(good) = .95 , n = 20
Accept if x ≤ 2
P(x ≤ 2) = binomcdf(20, .05, 2) = .9245 0r 92.45%</span>
