What subatance particals are located in the nucleus of the atom?

9. Two twin boys are playing outside on a hot, sunny day. One of the twin boys is wearing a black shirt and the other, a white shirt. The twin in the black shirt feels warmer. Explain why.

What is the velocity of a car traveled a total of 75 kilometers north in 1.5 hours

How many moles of silicon, Si, are in 1.45 * 1024 Si atoms?

Which of the following chemicals can damage the central nervous system, cardiovascular system, reproductive system, hematological system, and kidneys with overexposure? A. Asbestos B. Lead C. Silica D. Welding fumes

Which of the following electron configurations for neutral atoms is correct? magnesium: 1s 2^2s 2^2p 6^3s 2^3p^6 argon: 1s 2^2s 2^2p 6^3s 2^3p^6

Condensation requires? a) the removal of energy b) the absorption of energy. c) no energy change.

What is the species that determines the ph of a solution?

Echoderms contain a what similar to the kind that vertebrates have

Study the following unbalanced redox reaction. Which one of the following choices represents the balanced redox equation? PbS + O2→ PbO + SO2 PbS + 2O2→ PbO + 2SO2 2PbS + 2O2→ 2PbO + 2SO2 2PbS + 3O2→ 2PbO + 2SO2 3PbS + 3O2→ 2PbO + 2SO2

Arrange these gases in order of decreasing standard molar entropy: Rank from largest to smallest. Kr, Cl2, SO3