What is the Direction of Rxn in a chemical formula?

Which of the following elements is among the alkali metals? Question 12 options: Magnesium (Mg) Tin (Sn) Lead (Pb) Potassium (K)

2. Carla's favorite ball is bright blue when it is outside in the direct sunlight. Inside, the ball appears to be almost green. Why does Carla's ball seem to change colors? A.

a gas volume of 100.0 ml at a pressure of 780 mmhg. whats the new volume of the gass when its pressure is increased to 880 mmhg

From least to most dense, the media are: air, water, polyethylene, and flint glass. How does density affect the angle of refraction of a light beam? (Remember to use the correct phrasing when answering this question).

Kristina demonstrates a toy for her younger brother. The steps to operate the toy are listed below. Step 1. Push the toy down. Step 2. A spring compresses. Step 3. Release the toy. Step 4. The toy jumps into the air. Which best describes Step 4?

The ball is moving at a constant speed of 0.5 m/s for 2.3 seconds how far does it go?

Which of these is a mixture? calcium carbon dioxide salt water potassium

A train travels 80 kilometers in 2 hours, and then 79 kilometers in 4 hours. What is its average speed?

What does it mean when we say science is a cycle?

1) Which is a characteristic of a metal? A) It looks dull. B) It feels brittle. C) It is a good insulator. D) It is a good conductor of electricity. 2)