What are the reactants and products when butane combusts with excess oxygen?

How do you define motion? define motion?

Solubility of ethanol in water explain why ethanol (ch3ch2oh) is more soluble in water than is ethane (ch3ch3)

Which contributes to the polarity of a water molecule? A. a linear shape along with strong covalent bonds B. deflection of hydrogen atoms by lone pairs of electrons C. no difference in the electronegativity of oxygen and hydrogen D.

Why are numbers used in chemistry often expressed in scientific notation?

How many protons and electrons are each contained in an atom of element number 44?

Martha has a large amount of 1.25 M H2SO4 in her lab. She needs 36 grams of H2SO4 for a chemical reaction she wants to perform. How many liters of solution should she use?

A student makes observations when water is added to a blue solution of copper sulfate. The student makes only 1 observation: the solution changes to a lighter shade of blue. Is this an example of a chemical reaction? Explain your reasoning.

When dos the spring tide occur

As ice transforms into steam, Question options: new molecules are formed. the types of atoms are changed. energy is absorbed by the molecules. the mass of the molecules is increased.

Why do chemists consider the periodic table so useful?