Answer:
Explanation:
Question 6 options:
1)
A single replacement reaction takes place because sodium is less reactive than hydroxide ions.
In the combustion process using excess oxygen, each mole of methane results to 1 mole of co2 while ethane produces 2 moles of Co2. Under same conditions, these can be translated to volume. Hence the total volume absorbed is 10 cm3 + 20 cm3 = 30 cm3.
Hydrogen i suppose is the right one
Answer:
390
Explanation:
Specific heat capacity= heat/mass × temperature

Remember you convert gram into kilogram and 1 gram =0.001 kilogram