Answer:
The formula for water is . The oxidation number of hydrogen is +1. Since there are two of them, the hydrogen atoms contribute to a charge of +2. The water molecule is neutral; therefore, the oxygen must have an oxidation number of to balance the charge.
Answer:
i would say C
Explanation:
You can only make a model of something if the real thing already exists.
<span>True. Acid rain is formed when compounds released during the burning of fossil fuels, such as sulfur dioxide and nitrous oxide, dissolve in water droplets in clouds. These then fall as rain as part of the water cycle. While some rain is naturally acidic, human activities, like burning fossil fuels, have made it worse.</span>
<span>The correct option is: It's solid form is less dense than the liquid form.</span>
Answer: The variable that you change in an experiment
Explanation: It does not rely on any other factors that deal with the experiment
