Carbon-14 has 6 protons and 8 neutrons; which element has 6 protons and 7 neutrons? c-13 si-14 c-6

Under which of the following conditions would one mole of have the highest entropy,? a. 90 ∘C and 15 L b. 167 ∘C and 101 L c. 17 ∘C and 30 L d. 57 ∘C and 55 L

How many valence electrons does phosphorus have?

What is the main difference between the formulas for kinetic energy (KE) and gravitational potential energy (PE) ?

The level of carbon dioxide was measured in a garden and on a city road. Where do you think the carbon dioxide level will be higher and why? A.

How many miles in 12000 yards? There are 5280 ft/mi and 3 ft/yd.

Before a race, an athlete warms up by jogging around the track shown below at a constant rate of 2.3 m/s. What statement best describes his motion as he jogs around the curved part of the track?

What physical property is changed when a waitress pours coffee from a pot into four mugs? temperature density volume color

Calcule o calor especifico do estanho sabendo que foram necessarias 100 cal para elevar em 20ºC a temperatura de 100 g de estanho

What's the smallest part of a compound

The inertness of the noble gases is due to a. the outermost shell has six electrons. b. the bonds they form with other elements. c. the number of protons and neutrons. d.