Answer:
2 chloride ion, Cl¯
Explanation:
The formula for calcium chloride is CaCl₂.
Next, we shall write the balanced dissociation equation for calcium chloride, CaCl₂. This is illustrated below:
CaCl₂ (aq) —> Ca²⁺ + 2Cl¯
From the balanced equation above,
We can see that calcium chloride, CaCl₂ contains 1 calcium ion, Ca²⁺ and 2 chloride ion, Cl¯.
Therefore, we can conclude that for every 1 calcium ion, Ca²⁺, there are 2 chloride ion, Cl¯.
Answer:
It shows the most reactive to least reactive, so that we can predict whether certain reactions will occur. Any metal can replace any metal below it, but not above it.
Explanation:
Answer:
B. choosing a material that will show warning before it fails.
Explanation:
Answer:
Electrical energy
Explanation:
Electrical energy is caused by the moving of electrons.
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Answer:
a fruit and oatmeal bar contains 142000 calories.
A nutritional calorie, or kilocalorie, is equal to 1000 calories.
E = 142 kcal · 1000 cal/kcal.
E = 142 000 cal.
Calorie (cal), or small calorie, is the amount of energy needed to heat one gram of water by one degree Celsius.
One small calorie is approximately 4.2 joules.
A calorie is a unit of energy.
Explanation:
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