The illuminance on a surface is 6 lux and the surface is 4 meters from the light source. What is the intensity of the source?

A. 24 candelas

B. 144 candelas

C. 72 candelas

D. 96 candelas

What is density of a mineral?

How many atoms are in 20.0g Ca?

Which of the following body systems detects and creates a response? a. response system. b. skeletal system. c. nervous system. d. muscular system.

How does a female go through the menstrual cycle every 28 days?

Do baboons have color vision?

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide