Answer 1. the law of conservation of mass states that mass is neither created nor destroyed in an ordinary chemical reaction. when an iron nail rusts, it seems to get heavier in mass. does the iron nail follow the law of conservation of mass?

How many grams of C3H8 would be needed to produce 6.39 grams of CO2?

In a uranium fission reaction, uranium splits into two smaller atoms and energy. Where did the energy come from? A. Chemical bonds are broken, and chemical energy is released. B.

The pressure in an engine cylinder increases from 7.6 atm to 13 atm as the gas is compressed from 0.50 L to 0.10 L. What is the expected cylinder temperature if the gas was initially 15°C? (Remember to express answer to correct significant figures.)

The temperature of water in a beaker is 45°C. What does this measurement represent? the heat capacity of water the total thermal energy of water the average kinetic energy of water particles the total kinetic energy of water particles

A swimming pool, 20.0 m ✕ 12.5 m, is filled with water to a depth of 3.73 m. If the initial temperature of the water is 17.5°C, how much heat must be added to the water to raise its temperature to 29.7°C? Assume that the density of water is 1.

In terms of electron configuration, why arsenic and antimony are chemically similar.

What does average speed mean

What are two types of chemical composition that characterize minerals?

Why is it important that the polymer membrane in a PEM fuel cell allows only protons to move through it? It forces the electrons to move through an external circuit, where they can do work.

Convert 1.65 * 1024 atoms of carbon to moles of carbon.