All of the following show a periodic pattern except

A. the dog ate everyone of his play toys

B. The lawn is mowed every thursday

C. Their are 12 months in ayear

D. Their are 60 seconds in a minuite

What 3 pieces of information do you need when describing an object's motion?

In the covalently bonded chemical compound acetate [CH3COO]-, the two carbon atoms have different oxidation states. What are its two oxidation states? A. +1 and - 2 B. +3 and - 4 C. +3 and - 3 D. +1 and - 4

Why are atoms small? and you cannot see them?

the air pressure was 101.3 kPa, but the weatherman said it was 1001.3 kPa. What is the percentage error

A box has a length of 10 cm a width of 8.5 cm and a height of 5.5 cm what is it volume?

The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the following ways is a puffin dependent upon salmon? A. Puffins have a commensalistic relationship with salmon. B.

2) Which of the following is a true statement? A: All the atoms of an element must be identical. B: Compounds may be separated by physical means. C: Mixtures may not be separated. D: Homogeneous is one type of compound.

How to tell the difference between ionic and covalent bonding?

The combustion of propane may be described by the chemical equation C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) How many grams of O2 (g) O2 (g) are needed to completely burn 83.3 g C3H8 (g) ?

Was the relationship among temperature, heat, and thermal energy?