Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42-

Is each genus of organisms is divided into classes

The enthalpy of formation of water is - 285.8 kJ/mol. What can be inferred from this statement? A. The enthalpy of the products is equal to the enthalpy of the reactants. B. Heat is absorbed during the process. C. Heat is released during the process.

If you looked closely could you see the wavelength of a fast moving car? explain.

Luminum reacts with sulfuric acid to produce aluminum sulfate and hydrogen gas. in this reaction, what is the formula for sulfuric acid

Which metal is most likely to form more than one kind of positively charged ion? sodium (Na) barium (Ba) nickel (Ni) magnesium (Mg)

Which type of fuel is difficult to extinguish using water as the only extinguishing agent? Select one: a. Liquids that are less dense (lighter) than water b. Liquids that are more dense (heavier) than water c. Miscible liquids d. Polar solvents

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How do people who supply their own water generally obtain it? (Site 1)

Select the word (s) to complete the word equation that matches the description of the reaction. Electrolysis breaks down water to form hydrogen and oxygen gas. A.

Many tall buildings have a framework made of steel girders on which walls of brick and glass are built. If the steel was unprotected what would you expect to happen in time? Explain your answer.