The correct answer is 12.2% BaO.
The solution is found by dividing the mass of the BaO, which is 25.8 grams, by the total mass of the solution, which is 212 grams, then multiplying it by 100 to get the percentage:
Answer:
Jack Beacuse...
Explanation:
the soil has water in it so it will be more than one matterial
A i belive is the correct answer
Answer:
no, not all objects emit electromagnet waves.
Explanation: because lets say the object is carpet it has no magnetic waves in it so not all objects do.