A calorie is the amount of energy needed to rise the temperature of 1g of water 1°c. true or false

A lemon with mass 0.3 kg falls out of a tree from a height of 1.8 how much mechanical energy does the lemon have just before it hits the ground? (assume there is no air resistance)

Phenol and benzoic acid are both weak acids that are solublein ether and insoluble in water. Benzoic acid is soluble inboth 10% NaOH and 10% NaHCO3. Phenol is soluble only in thestronger base, 10% NaOH.

2. What is the total number of grams of KCl in 1.00L of 200M solution?

A solution contains 0.0330 M Pb2 (aq) and 0.0330 M Sr2 (aq). If we add SO42 - (aq), what will be the concentration of Pb2 (aq) when SrSO4 (s) begins to precipitate?

A 250.0 mL bag of chips initially found at 21.0°C is left in a hot car and heated to 65.0°C. What is the new volume of the bag?

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda