Statement 1: Mass is conserved during the reaction.

Statement 2: Sum of mass and energy is conserved during the reaction.

Which statement is true for both nuclear reaction and chemical reaction?

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

Loren has the samples of elements that are listed below at room temperature. He exposes the samples to the same heat source until each sample reaches a temperature of 90.0°C. 10 g of Al (s) ( = 0.897 J / (g°C)) 10 g of Ag (s) ( = 0.

When a weather map shows a wind symbol at 270 it indicates that the wind is coming from the

Heat is transferred from the heating element to the pot to the boiling water. what is the most likely method of heat transfer? a. circulation b. conduction c. convection d. radiation

What is the net charge of an ion that has 9 protons 11 neutrons and 10 electrons

An element like silicon is not usually used to make wires or pans because it what?

N which orbitals would the valence electrons for selenium (Se) be placed? s orbital and f orbital s orbital only s orbital and p orbital d orbital only

Anne prepares a solution of copper nitrate with a concentration of 30 g/dm³. What mass of copper nitrate did she add to 100cm³ of water, in grams?

Chemists classify an element an element as a metal based on what physical properties

What is the mass of 222 ml of ice if the density of ice is 0.92 g/ml?

in a water molecule, two atoms of hydrogen and one atom of oxygen share electrons. A _ bond is found in a water molecule