scientific notation, Prefixes and Units

Question 1

what is the SI unit for candelas (luminous intensity)?

Answer 1

cd

Question 2

what is the equation for mass, number of moles and molar mass in both words and units?

Answer 2

Word: mass = No. of moles x molar mass

unit: g = mol x g/mol

Question 3

what are the prefixes for 10^12, 10^9, 10^2 and 10^1

Answer 3

• 10^12 : tera
• 10^9 : giga
• 10^2 : hecto
• 10^1 : deca

Question 4

what are the prefixes for 10^-1, 10^-2, 10^-3,10^-6, 10^-9, 10^-12, 10^-15

Answer 4

• 10^-1 : deci
• 10^-2 : centi
• 10^-3 : milli
• 10^-6 : micro
• 10^-9 : nano
• 10^-12 : pico
• 10^-15 : femto