At 12 mph, how long does it take to go 13.1 miles?
We know that distance = rate * time
So we know that 13.1 = 12 * time
We can now see that time = 13.1/12 = 1.092 (hours)
That's approximately 1 hour and .092*60=5.52 minutes.
Answer: A. Refrigerator technology has helped improve people’s nutrition.
Explanation:
Answer:
Explanation:
Chemical is when there is a change of color odor or temperature rises
Answer:
The most common oxidation states of manganese are 2+, 3+, 4+, 6+, and 7+.
Answer:

Explanation:
Here, we want to get the number of Joules needed to be added
Mathematically, this is the amount of heat needed which could be calculated by:

where:
m is the mass of the iron which is 1000 g
c is the specific heat capacity which is 0.449
delta T is the temperature change which is the difference between final and initial temperature (250-25 = 225 degrees celsius)
Substituting the values, we have it that: