An atom in the ground state has two electrons in its first shell and six electrons in its second shell. What is the total number of protons in the nucleus of this atom? (1) 5 (2) 2 (3) 7 (4) 8

Energy is released from radioactive elements. True or False

Using the following chemical reaction, perform the theoretical stoi CH4 + _02 __CO2 + ___ H2O If 4.62 moles of methane gas (CH4) are consumed, how many gran

1 kg is equal to 103 hg. 103 g. 10-2 cg. 10-2 g.

What is the relationship between wavelength, amplitude, and the energy involved in a wave?

A student noticed a yellow, solid, substance was formed when mixing two clear liquids during a lab. What term describes this yellow, solid substance?

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.

Carbon dating advisable for measuring materials ages for a few years, thousands of years, millions of years