How much thermal energy is needed to raise the temperature of 4g of water

from 25°C to 75°C if water has a specific heat of 4.186 J/gºC

1. 850,000J

2. 840,000J

3. 740,000)

4. 840)

During a test trial, the control and test group are both given a pill. To account for the effect patients may think the drug being tested is having just because they believe they're being treated, the control group is given a "sugar pill," which is

When magnesium-28 undergoes beta decay, what is the identity and mass number of the nucleus formed?

What enables sound waves to travel between the boat and the submarine

What volume would be occupied by 4.8 g of oxygen gas at 0.50 atm and 133°C? Hint: Determine moles of oxygen gas first.

What is the major difference between fresh water and ocean water

Which the following atoms will not react with water? a. K b. Li c. Pb d. Na

Fluorin is often added to drinking water and toothpaste

What larger energy does light energy come from?

Allows water to pass through easily

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles