BRAINLIEST FOR CORRECT ANSWER In a reaction the 48cm3 of gas is produced in 97 seconds. Remember to check worked example 2 and calculate the rate of reaction.

In a reaction the mass of a reactant changes from 43g at the start to 22g at the end. This takes 79 seconds. What is the rate? (hint – you can use the two masses to work out the mass of reactant lost)

The amount of time this takes determines the rate of the ... 41g in 2 seconds. What is the rate? 5. In a reaction the 48cm3 of gas is produced in 97 seconds. ... check worked example 2 and calculate the rate of reaction. 6. In a reaction the mass of a reactant changes from 43g at the start to 22g at the end. This takes 79.

Explanation:

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

the answer is na (sodium)