An organism breathe with lungs lays eggs and has feathers the organism is?

A. a bird

B. a reptile

C. an amphibian

D. mammal

If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 g/mol, how many sodium atoms are there in the sample?

Strong bases are a also strong acids. b weak electrolytes. c nonelectrolytes. d strong electrolytes.

A beta particle consists of a fast moving electron and has a (negative/positive) charge

What is the density of a 22.91 irregularly shaped object if the initial volume of water was 22.3 and the volume rose to 66.8mL after the object was added?

What Is the volume of 20g of benzene?

Liquid sample a has a higher vapor pressure than liquid sample b (both in closed containers). what can be said about sample a compared with sample b?

A neutral atom has high electronegativity. Describe what happens to this atom during ionic bond formation?

Which daughter element is produced from the beta decay of 89/36 kr

What is "change" when we are talking about natural and physical systems? A. Information that has been proven to be true B. Repeated processes that are used in a variety of ways C. A process for using knowledge and skills to acquire new knowledge D.

1. The sum of the pH and the pOH must always be equal to a constant value. What is the numerical constant?