The results of some tests on a colourless liquid X are shown. .
Boiling point = 102°C
.
Universal Indicator turns green
What is X?
A
ethanol
B
hydrochloric acid
с
pure water
D
sodium chloride (salt) solution

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons

What is the name of the enzyme that forms at the start of transcription?