Which rule for assigning oxidation numbers is correct

Hydrogen is usually - 1.

Oxygen is usually - 2.

Apure group 1 element is + 1.

Amonatomic ion is 0.

A stone is thrown at an angle of 45 degrees above the horizontal from the top edge of a cliff with an initial speed of 14 m/s. A stop watch measures the stone's trajectory time from top of cliff to bottom to be 6.9 s.

The electric and magnetic fields that make up an electromagnetic wave occur are at right angles to each other. True False

What is the hardy-weinberg principle?

La energia cinetica de una masa de 6kg que poses una velocidad de 10m7 / la energia cinetica de una masa de 6kg que posee una velocidad de 15m/s como lo puedo desarrollar

An egg cooking on a campfire is an example of A. only an exothermic reaction. B. only an endothermic reaction. C. an endothermic and an exothermic reaction. D. neither an exothermic nor an endothermic reaction.

What is the period of a 1.00 m long pendulum?

Kaylie is describing the physical properties of an orange and a lemon. which two physical properties can she determine without using any measurement instruments

What is an example of a third class lever and why use it? A) pulley; changes direction B) baseball bat; increases velocity Eliminate C) car jack; increases the weight it can lift D) wheel barrow; makes it easier to move a load

1. The horizontal and vertical components of a projectile's velocity are a. directly proportional C. independent of each other b. inversely proportional d. equal

Which features involve compression? Select the three correct answers. A. Reverse faults B. Anticlines C. Folded mountains D. Normal faults E. Monoclines