Is burning bread a chemical or physical change

Select the correct answer. What does one mole of H2O correspond to? A. 6.02 x 10^23 molecules of H20 B. 6.02 x 10^23 atoms of H and 6.02 X 10^23 atoms of o C. 6.02 x 10^23 atoms of o D. 6.02 x 10^23 atoms of H E. 6.02 x 10^23 x 2 atoms of H

Which of the following processes would you predict to have an increase in entropy? condensation of water freezing water melting ice deposition of CO2 (changing from a gas to solid)

If I have 6.02 x1023 atoms of silicon, how many grams of silicon do I have?

A student following the procedure described in this module collected the follwing dа ta: 1. Mass Mg, m = 0.0243, initial syringe volume, ml=1.0, final syringe volume, ml = 26.5, barometric pressure, torr = 754, temperature, k = 298.

Which organism is a tertiary consumer? clownfish brittle star killer whale octopus

Which organelles are unique to plant cells? chloroplasts mitochondria vacuoles nuclei

An atom that has 13 protons and 15 neutrons is an isotope of the element? How can I count it?

Which element is nuclear fusion least likely to produce? hydrogen, which has an approximate mass of 1 chlorine, which has an approximate mass of 35 argon, which has an approximate mass of 39 silicon, which has an approximate mass of 28 I know the

How deep does the surface current known as the Gulf Stream go A. 3,000 meters B. 3 meters C. 300 meters

What characteristics of a planet determine the strength of its gravitational force on other objects? A. diameter of the planet and its location in space B. the number of moons that the planet has C.