Water freezes at 0 degrees Celsius. A student discovered that adding half a cup of salt to a gallon of water lowers its freezing
temperature by 7 degrees Celsius. What is the freezing temperature of the gallon of salt water?
1 answer:
Answer:
-7°C
Step-by-step explanation:
Freezing point of water = 0°C
By adding salt, freezing point lowers by 7°C ;
The freezing point of salt water can be expressed as ;
Since temperature lowers :
Freezing point of salt water :
Freezing point of water - 7°C
0°C - 7°C
= - 7°C
You might be interested in
The first number would be 3×5=15.
Another number could have different values. it could be
4=2×2
12=2×2×3
20=2×2×5
60=2×2×3×5
Answer: y= 3/2x+8
Step-by-step explanation:
Answer:
line 2?
Step-by-step explanation:
50*

=6000
Answer:
Step-by-step explanation:
t
=
−
122