The greatest amount of energy released per gram of reactants occurs during a (1) redox reaction

(2) fission reaction

(3) substitution reaction

(4) neutralization reaction

Give the number of atoms of the specified element in a formula unit of each of the following compounds, and calculate the molecular (formula) mass: (a) Hydrogen in ammonium benzoate, C6H5COON H4 (b) Nitrogen in hydrazinium sulfate, N2H6804 (c)

If you have 200 grams of SO4, how many molecules of SO4 will you have?

A solution that contains many dissolved molecules in a fixed amount of solution is called 1. concentrated. 2. strong. 3. dilute. 4. weak.

1. Which statement is accurate? A) A gene consist of two traits. B) An allele is one form of a gene. C) Most alleles have many genes. D) An allele is made up of two genes. 2.

When calcium carbonate reacts with hydrogen chloride, if the reaction occurs with 78.5% yield, what mass of carbon dioxide will be collected if 19.88g of CaCO3 is added to sufficient hydrogen chloride?

What is the concentration of hydronium in each of the following cases: [OH-] = 10-12 M? [OH-] = 10-2 M?

Which statement best explains why elements are matter? An element is a physical substance that has mass and takes up space. Elements are pure substances that cannot be divided chemically. Each element is a pure substance composed of one type of atom.

Which of the following best describes what causes the phases of the moon? The alignment of the sun, Earth, and moon The speed of the moon around the Earth The speed of the Earth around the sun The alignment of the planets

At which temperature would atoms of a He (g) sample have the greatest average kinetic energy? (1) 25°C (3) 273 K (2) 37°C (4) 298 K

In the reaction, HCl + H2O produces H3O + Cl, what is the conjugate acid