A compound differs from a mixture in that a compound always has a?

1. homogeneous composition

2. maximum of two components

3. minimum of three components

4. heterogeneous composition

A covalent bond forms a. when an element becomes a noble gas. b. when atoms share electrons. c. between metals and nonmetals. d. when electrons are transferred from one atom to another

Before the 1960s, it was not uncommon for a restaurant to refuse customers who were African-American. Such a practice illustrates the concept of A. situational attribution B. stereotyping C. discrimination D. social comparison E. prejudice

Paleomagnetic evidence was used to confirm which of the following hypotheses? a. hot spot b. transformation boundaries c. seafloor spreading d. subduction

What is prograde in astronomy?

Part a the sun produces energy via fusion. one of the fusion reactions that occurs in the sun is 411h→42he+201e how much energy in joules is released by the fusion of 2.

Which of the following is nicknamed the "powerhouse" of the cell?

Which is a sign of a chemical change? Question 6 options: Paint on a freshly painted wall dries and is no longer sticky. Ice cream melts when left at room temperature. Vinegar is mixed with baking soda resulting in carbon dioxide bubbles.

What is the correct term for water Atom element product reactant

Do carbon atoms gain, lose, or share electrons?

In aqueous solution the ag ion forms a complex with two ammonia molecules. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex.