Which clue can be used to identify a chemical reaction as a combustion reaction?

Oxygen is a product.

A hydrocarbon reacts with oxygen.

Water and carbon dioxide react.

The reaction involves ions.

What is the percentage error? if the actual density is 8.49 and the measured density is 8.45

Which of these is a compound? A. carbon B. carbon dioxide C. Air D. oxygen

Explain what makes one mineral so precious or costly compared to another.

More then 97% of earth's total water supply is found in? A. Ice sheets B. the oceans C. the atmosphere D. groundwater

How many calories are released when 100.00 g of steam condenses?

Use the information in the table below to answer the following question: Lake Volume Buffer (CaCO3) Concentration Squirrel Lake, 80,000 Liters, 2 mg/L Moose Lake, 100,000 Liters, 1.

Which of the following is a part of a land based carbon cycle? coral reefs Crab shells Trees Whales

What is common of volcanoes that have the most violent eruptions? A. They feature magma with very high silica content. B. They are shield volcanoes. C. They feature magma with low viscosity. D. They have no magma, but have much lava.

Why is nitrogen fixation such an important step in the nitrogen cycle? Question 7 options: Bacteria convert the fixed nitrogen back into N2. Soil nitrogen is different. Decomposers need to use NH4+. Plants can't use nitrogen in the form of N2.

At 400 K, the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kPa, was 9.71 Pa s-1 when 10.0 per cent had reacted and 7.67 Pa s-1 when 20.0 percent had reacted. Determine the order of the reaction.