Gold alloys consist of most commonly Nickel!
Most commonly used in things like jewelry so it doesn't have such a heavy weight.
Answer:
Please did you ever get an answer??
Explanation:
Im doing usa test prep too and its really late
Answer:
(i) Change in colour (ii) Change in temperature (iii) Formation of precipitate
Explanation:
(i) Change in colour: Reaction between lead nitrate solution and potassium iodide solution. Pb(NO3)2(aq)+2KI → PbI2(s)+2KNO3(aq) In this reaction, colour changes from colourless to yellow. (ii)Change in temperature: Action of dilute sulphuric acid on zinc. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2 In this reaction, heat is evolved (iii) Formation of precipitate: Action of barium chloride on sodium sulphate. BaCl2(aq) +Na2SO4(aq) → BaSO4(s) +2NaCl(aq) BaSO4(s)
Answer: The given compound is 1-butene.
Explanation:
In simple hydrocarbons, if there are only single bonds present then the suffix "ane" is added to the name of hydrocarbon.
If there is a double bond then suffix "ene" is added to the name.
If there is a triple bond then suffix "yne" is added to the name.
For example, 
has one double bond which is at position 1 and there are four carbon atoms present.
Hence, name of this compound is 1-butene.
