Answer:
1.125moles
Explanation:
mass of NaOH,m= 45g
molar mass of NaOH, M= 23+16+1
= 40g/mol
mole,n =m/M
n= 45/40
n=1.125mole
Answer:
an acid +metal =salt +hydrogen
Explanation:
HCL+Mg =Mgcl2+H2
(because Mg has an ion with a +2 charge ,it attracts Cl with a -2 charge )
therefore the correct answer is D for the above reasons
Answer:
The greater the frequency means the more energy transferred.
The greater the wavelength means the less energy transferred
Answer: i honestly dont know that is like what 9th grade science im only a 6th grader lol
Explanation: none
