Why might gold jewelry from the middle ages appear to be new while iron swords from the same time look ancient?

In a post office, a 3-m long ramp is used to move carts onto a dock that is higher than 1 m. Which describes how the IMA of this ramp compares with the IMA of the ramp that has a height of 1 m? It is greater. It depends on friction. It is the same.

What is a pseudoscience?

The thermal reaction of cis - (CO) 4 (PR3) 2 + CO → Mo (CO) 5 (PR3) + PR3 occur most rapidly when R = ? a. PMe3b. PH3c. PEt3d. PPh3

Calcium (Ca) and oxygen (O) combine to form an ionic compound. Which best describes the electron dot formula for this compound

A car has a mass of 1200 kg what is its acceleration when the engine exerts a force of 600 n

2 How 12.6 Sn + 2 HF - Snf a + H₂ many moles of tin (11) Fluoride will be produced grams of hydrogen fluoride react? if

Select the type of energy involved in each step. You turn on the burner of a gas stove. a) chemical b) thermal c) mechanical d) electrical The gas ignites. a) chemical b) thermal c) mechanical d) electrical The gas warms the water in the pan.

What volume of 0.500 M AgNO3 are needed to react with 100. mL of 0.400 M K2CrO4? 2 AgNO3 (aq) + K2CrO4 (aq) ➔ Ag2CrO4 (s) + 2 KNO3 (aq)

Why can gases and liquids both transmit heat by convection? a. Their particles are free to move away from each other b. They both have a fixed volume c. They both contain charged particles d. Their particles both vibrate around fixed positions

How many atoms of oxygen, O, are in 0.0595 moles of water?