What is the term for a chemical symbol of an element surrounded by a dot representing each valence electron?

Determine the mass of 2.94 x 10^34 molecules of decane

13) Most living things need oxygen to survive. These two body systems bring oxygen into your body and then move to all your body parts. What are these two body systems?

49. (3pts) A student calculated the volume of a 2.71 mol sample of helium at 450 torr and 35 °C. The student solved the problem using the ideal gas law as shown below: (450 torr) (V) = (2.71mol) (0.

Define oxidation and reduction in terms of electron transfer

Nhalation and exhalation move air into and out of the lungs. what happens when you inhale and exhale?

How does the shape of the Earth affect the climate of different regions?

What is Delta. Gsystem for the system that is described by the following data? Delta. Hsystem = - 345 kJ, T = 293 K, Delta. Ssystem = 465 J/K Delta. Gsystem = Delta. Hsystem - TDelta. Ssystem - 481 kJ - 209 kJ 413 kJ 135,900 kJ

Calculate ΔGrxn for this equation, rounding your answer to the nearest whole number. CaCO3 (s) → CaO (s) + CO2 (g) ΔGf, CaCO3 = - 1,128.76 kJ/mol ΔGf, CaO = - 604.17 kJ/mol ΔGf, CO2 = - 394.4 kJ/mol

Using two spring scales, students pull on opposite sides of a dynamic cart at rest. 5 Newtons of force is pulling left and 5 newtons force is pulling right. Describe the motion of the cart? A) The cart will move to the right.

If a mineral has a metallic shine to it, which property of a mineral is being measured