To determine the level of soil pollution across several states, a scientist would most likely use which method of gathering data?

scientific survey

observation of animals drinking the water

controlled experiment

scientific modeling

Consider the following balanced reaction: 4NH3 (g) + 502 (g) - 4NO (g) + 6H20 (g) How many grams of ammonia are required to react completely with 40 g of oxygen? A. 154 B. 179 C. 34 g D. 19 g

How do the isotopes of an element differ?

How many mol of oxygen in 2.5 mol of caffein?

Why is it important for a doctor to ask a patient questions in addition to doing a physical exam?

What are 3 ways to prevent getting athletes foot

What is a contributor of global warming? a. aerosol sprays b. carbon dioxide c. acid rain d. garbage

How is momentum similar to inertia? Explain.

Suppose that 0.00150 moles of CO2 (44.0 g/mol) effuse out of a pinhole in 1.00 hour. How many moles of N2 (28.0 g/mol) would effuse out of the same pinhole in 1.00 hour? Assume both gases are at the same temperature and pressure.

How do you make glue from jack fruit sap?

A compound is broken down by chemical means during (1) chromatography (2) distillation (3) electrolysis (4) filtration