4. Thinking Critically Applying Concepts

Balance the following chemical equations by

adding coefficients:

a. HCI + NaOH + H2O + NaCl

b. Fe2O3 + C → Fe + CO2

C. SO2 + O2 → SO3

Convert 96,543 milligrams to grams. A. 9.6 g B. 9,654.3 g C. 965.43 g D. 96.543 g

Which of these definitions could be used to define KOH as a base? Check all that apply. Arrhenius concept Bronsted-Lowry concept Lewis concept

Which statement about the noble gas is most reliable

The asteroid belt separates what? A. sun and the stars B. Earth and moon C. inner and outer planets D. Milky way from other galaxies

Occurs when the moon moves between the Earth and Sun and blocks the light

Which statement is true about inorganic compounds? A. They are not made of atoms. B. They contain carbon. C. They are not made from living things. D. They are all elements.

Which domain do you find the most interesting why

Complete the matching exercise below by choosing the correct description of each bond type in aqueous solution. 1. covalent bond 2. hydrogen bond 3. electrons shared by atoms a. electrons shared by atoms b.

One mole of calcium ions has the same number of representative particles as which of the following? one mole of calcium nuclei one mole of calcium atoms 6.02 x 1023 calcium ions All of these are correct.

How is chemical symbol and chemical formula difference?