A race car travels 800 kilometers in 2 hours during a race. What was the average speed of the race car in km/hr.

What type of chemical reaction is 4Fe+3O2→2Fe2O3? A) synthesis B) decomposition C) double-displacement D) single-displacement

What types of gas molecules usually deviate more from ideal behavior?

What is the hardness of tellurium

How many electrons will fit on an outermost shell of an atom? A. 4 B. 8 C. 10 D. 12

A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 61.0°C, what is the specific heat of the substance?

The equation 2 N O 2 in equilibrium with N 2 O 4 represents a system,

How does the calorie compare to the metric unit the joule? How do you calculate a calorie? Is it the same for all types of food?

Under which conditions would the solubility of a gas be greatest? A. high pressure and high temperature B. high pressure and low temperature C. low pressure and high temperature D. low pressure and low temperature

How many milliliters is 0.55 L? O A. 1000 ml OB. 0.00055 mL O C. 550 ml D. 55 mL

When a warm front passes your location, the temperature rises rapidly. As a result, air density: B? increases decreases remains the same