Answer:
A
Step-by-step explanation:
Acids turn litmus paper red. The characters of acids are given by substance A. An acid tastes sour and also conducts electricity well because of ionization properties. Additionally, Hydrogen gas is produced from acid-base neutralizations because most if not all acids contain hydrogen.
Answer:
1. numbers 2. numbers 3. numbers 4. numbers 5. numbers 6. numbers 7. numbers 8. numbers 9. numbers 10. numbers 11. numbers 12. numbers
Step-by-step explanation:
Seven-thirty.
A half an hour past seven o'clock.
Answer:
b = 36
Step-by-step explanation:
Assuming this is a right triangle with hypotenuse = c and legs a and b
Then using Pythagoras' identity.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + b² = c², and substituting values
15² + b² = 39², that is
225 + b² = 1521 ( subtract 225 from both sides )
b² = 1296 ( take the square root of both sides )
b = 
= 36
If you would like to know what is 5% of 225, you can calculate this using the following steps:
x = 5% of 225
x = 5/100 * 225
x = 11.25
Result: 5% of 225 is 11.25.
