Which of these choices is the smallest unit of matter?

What are the subscripts in the empirical formula of this compound? enter the subscripts for c, h, and o, respectively, separated by commas (e. g., 5,6,7) ?

Which is a description of a precipitation reaction? A. Sulfuric acid combines with sodium hydroxide to produce water and sodium sulfate. B. Potassium iodide is added to lead nitrate to produce an insoluble yellow solid, lead iodide. C.

Which if the following statements correctly describes why society must carefully consider the use of biotechnology?

Scientists developed a theory to explain ionic bonding before they developed a theory to explain covalent bonding. What aspect of covalent bonds most likely prompted scientists to find a new theory of bonding? Select one: a.

A sample of helium gas occupies a 10 cubic meter container at stp (273 k, 1 atm). what will the approximate volume become when the pressure is 1.5 atm and the temperature is 32 oc? a. 5.4 cubic meters b. 7.5 cubic meters c. 9.2 cubic meters d. 11.

As part of a network that carries signals throughout the body what type of tissue makes up the brain

Who is one of the first scientists to propose that species change over time

A balloon has a volume of 10,500 liters and the tempature is 15 C. If the temp tire were - 25C what would the volume of the balloon be? A-12,194L B - 9,042L

What types of star can explode in a supernova

Which graph best shows the relationship between kelvin temperature and average kinetic energy?