22.00 g of an unknown metal absorbs 9453 J when it is heated from 28.30°C to 72.80°C. What is the specific heat of the metal in J/g. °C)?

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

How many neutrons does a atom of cobalt have?