Answer:
<h3>KBr + I- ---------> KI + Br-</h3>
Explanation:
Single Displacement reaction is a chemical Reaction in which one element in the salt is replaced with another element
for example,
A-B + C -------> A-C + B
electropositive replaces only electropositive elements from compound. same is true for electronegative element
in first reaction I being electro negative replaces Br from KBr so this is a single displacement reaction
not double replacement
it will be synthesis
they are fusing the two elements
plz mark brainliest
Ans: 15.1 grams
Given reaction:
Na2CO3 + Ca(OH)2 → 2NaOH + CaCO3
Mass of Na2CO3 = 20.0 g
Molar mass of Na2CO3 = 105.985 g/mol
# moles of Na2CO3 = 20/105.985 = 0.1887 moles
Based on the reaction stoichiometry: 1 mole of Na2CO3 produces 2 moles of NaOH
# moles of NaOH produced = 0.1887*2 = 0.3774 moles
Molar mass of NaOH = 22.989 + 15.999 + 1.008 = 39.996 g/mol
Mass of NaOH produced = 0.3774*39.996 = 15.09 grams
Answer:
cm3 = 2500.0 g / 10.5 g/cm3 = 238 cm3
Photosynthesis. Easy ;) have a nice day
