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I am a jeweller and have found an old recipe for frosting gold (making the gold a richer more yellow colour) and I wanted to ask how stable it is. It is 119ml (4oz)of sulphuric acid, 59 grams (2oz) of potassium nitrate and 7.4 grams (1/4oz) of salt. I just wanted to know if this formula is stable? I need to quench hot metal in it.
copper sulfate. 1.80 g of this mixture was dissolved in 110 mL of boiling water and
slowly cooled to 0 °C. Determine the composition and percentage purity of the crystals
that formed. [Solubilities of benzoic acid, acetanilide and copper sulfate at 0 °C are
1.70, 5.30 and 316 g per litre, respectively.]
Floor 1 has 7 people& floor 2 has 12 people
There are always two people occupying each escalator
Question 1 :
If there are always 2 people on each escalator at any one moment, will the amount of people on each floor ever change?
Question 2 :
If there are always 2 people on each escalator at any one moment, will the specific people on each floor ever change ?
a) The relationship between motorcycles and Camry’s is positive.
b) The equation that maps this relationship is y = 1 + 2x, where y is motorcycles and x is Camry’s.
c) The relationship between Honda motorcycles and Camry’s is negative.
d) The equation that maps this relationship is y = 1 - 2x, where y is motorcycles and x is Camry’s.