What percent of the atmosphere is made up of carbon dioxide?

Why is hydrogen (H) placed with the elements in Group 1A?

All fungi are. prokaryotes? eukaryotic? unicellular? multicellular

If the heat capacity of an object is known what other information will need to be known to calculate its specific heat capacity A. It's temperature B. It's volume C. It's energy D. It's mass

An airplane travels 4000m in 16 seconds on a heading of 35 degrees. What is it's velocity

What is the percentage by mass of fluorine in sulfur hexafluoride?

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.