How many significant figures are in the measurement 0.00440 grams?

Select one:

a. 6

b. 5

c. 3

d. 2

Which phase has the lowest entropy? Why? How does a change in phase affect entropy changes in a reaction?

A boiler is used to heat steam at a brewery to be used in various applications such as heating water to brew the beer and sanitizing the brewing tanks. 73.0% of the heat produced by the boiler is used to create saturated steam at 12.

What allows electrical charges to move freely

Why do you think one handle will be cooler than the other?

Mg (OH) 2 ⇆ Mg²⁺ + 2 OH⁻ The exothermic dissolution of Mg (OH) 2 (s) in water is represented by the equation above. The Kₛₚ of Mg (OH) 2 is 1.8 x 10⁻¹¹.

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?

I have 2 electrons is the first shell, 8 in the second, and 6 in the third

The production of plastics makes life, so it benefits society. On the other hand, the production of plastics causes air and water, so it also harms society.

The total number of moles represented by 20 grams of CaCO3 is

Particles of matter how have both potential and kinetic energy is that true or false?