What is the density of a crayon

Which one is a true statement about exothermic reactions? a. the reaction container always feels cold b. energy is being absorbed (taken in) c. more heat is given off (released) than is put into the reaction d.

What are some other ways you could describe a gold ring that are not properties of gold

Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 68.0 g of propane, determine the following: (a) Calculate the moles of the compound, (b) calculate the grams of carbon.

What is the formula of Zinc Chloride?

What energy conversion occurs when a battery powered car rolls across the floor? A. Stored chemical energy is converted to mechanical energy. B. Stored electrical energy is converted to mechanical energy. C.

How many moles of oxygen are in 0.53 moles of co 22?

The car wit fastest acceleration is the tempest. it has an acceleration of 6.1 m/s. suppose the car accelerates from rest to a final speed of 30. m/s. how long does it take the tempest to reach this speed?

What is the wavelength of 2.18*1016 hz wave?

Which of the following summarizes photosynthesis? A. glucose + carbon dioxide → oxygen + water B. carbon dioxide + water → glucose + oxygen + water C. oxygen + water → glucose + carbon dioxide + water D.

Explain the effects of nh3 and hcl on the cuso4 solution in terms of le chatelier's principle