Im not sure what the answer is unless you put the options up for the multiple choice
2 g/cm³ is the density of the block of wood
Explanation:
To determine density of the block of wood we use the following formula:
density = mass / volume
density of the wood block = 100 g / 50 cm³
density of the wood block = 2 g/cm³
Learn more about:
density
brainly.com/question/13295193
#learnwithBrainly
Answer:
Nitric acid decomposes sodium cyanide and sodium halide. else, they precipitate in test and misguide the result. Therefore, dilute nitric acid is added before testing halogens to expel all the gases if evolved.
The melting of the ice cube indicates physical change has taken place
