When does incomplete combustion occur?

if a layer of sandstone is in contact with a mass of granite that contain small pieces of the Sandstone which rock is older

The equation 2NaNO3 + CaCl2→2NaCl+Ca (NO3) 2 is balanced. How many atoms of oxygen (O) are there on either side of the equation? six one four two answer is 6

One of the nuclides in each of the following pairs is radioactive. Predict which is radioactive and which is stable. a. 39/19K and 40/19Kb. 209Bi and 208Bic. nickel-58 and nickel-65

The silicon needles on new blood analyzing devices can painlessly collect samples of blood with volumes of about 100 nanoliters. How many samples of this size would fit in a conventional 5 ml hypodermic needle?

What is the meaning of the euphemism, "lose your lunch"? A) To "lose your lunch" is to die. B) To "lose your lunch" is to vomit. C) To "lose your lunch" is to give away your money. D) To "lose your lunch" is to be unable to find your lunch.

Q. A Substances that form hydrogen ions when released in water are called ... Choose one high acids bases saturated suspension salt solution hydrogen ions

How can you make sure that all of the water of hydration is removed?

Is it possible to turn one metallic element into a different metallic element in a chemical reaction? Explain.

What are two ways that scientists can report results of their experiments

The sun sum of protons and neutrons in the nucleus of an atom.