Cow's milk is 4.5% by mass of lactose. Calculate the mass of lactose present in 175 g of

milk

How does the nucleus of a copper atom compared to the nucleus of a nickel atom

Charlie is drinking a cup of soup which has a pH of 8. Jack is drinking a cup of orange juice with a pH of 6. which item has more free H + ions? Approximately how many more H + ions does the drink with more have?

To increase a gas ' average kinetic energy must do what?

Compare and contrast atom and compound

How does heat differ from temperature? Temperature is the measure of heat. Temperature and heat are the same thing. Temperature measures thermal energy, and heat is the flow of thermal energy.

Propane (C3H8) has a molar mass of 132 g/mole. You started out the day with a tank containing 9071 g of propane. At the end of the day, your tank contained 7532 g of propane gas. How many moles of gas did you use?

Why decomposition of ammonium nitrate is a redox reaction?

Two formulas for compounds containing hydrogen and oxygen are H2O and H2O2. Do these formulas represent the same compound? Explain.

My dog made become frightened and cover when he hears loud thunder this is an example of a reaction to What kind of stimuli A. chemicals B. light C. touch D. sound

Some elements are solids at room temperature true or false