Metals tend to readily lose electrons and form cations. Most of them react with atmospheric oxygen to form metal oxides. However, different metals have different reactivities towards oxygen (unreactive metals such as gold and platinum do not readily form oxides when exposed to air
First of all, we need to convert the energy produced from kilojoules to calories. 1 kJ corresponds to 239.1 cal, therefore:
And so now we can calculate the energy value of the oil:
Answer:
velocity because it says you are going 3 miles north and velocity is something going a speed in a certian direction
Explanation:
Answer:b
Explanation:
use the process of elimination,
A is wrong because a lake doesnt mean it can send up seashells
D is wrong since you cant blow seashells up
Answer:
The current doubles when the voltage doubles because they are directly proportional.
Explanation:
When relating resistance (R), current (I), and voltage (V), we use Ohms Law
V = I R
As a simple example, if we plug some random values into the equation we can see this in action
V = 6V
I = 2A
R = 3Ω
6 = 2 * 3
Now if we keep the resistance the same but double the voltage, the current will have to double to show the change
12 = 4 * 3
So, The current doubles when the voltage doubles because they are directly proportional.
