True or False:

2502 + O2 → 2503

In the chemical reaction above, the coefficient of SO3 is 2.

TRUE or FALSE

You are given 10.58 grams of substance X. The specific heat of this substance is 3.58 J/g·°C. If the mass of substance X is doubled, the specific heat of this substance will also double

The use of ultraviolet or fl uorescent dyes in an r-1234yf system is

When 0.1523 g of liquid pentane (c 5 h 12 ) combusts in a bomb calorimeter, the temperature rises from 23.7 ∘ c to 29.8 ∘ c. what is δu rxn for the reaction in kj/mol pentane? the heat capacity of the bomb calorimeter is 5.23 kj / ∘ c?

which functional group is more electronegative, amine C-NH, or alcohol C-OH, in assigning carbon environment?

How is the hardness range for a mineral determined?

The heart is an example of which level of organization within an organism? O cell organ tissue organ system O O

NaOH+HCl--> NaCl+H2O what is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed?

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.