Which statement correctly describes how the following chemical equation violates the law of conservation of mass? H2 + O2 → 2HO2

When a chemical reaction takes place, the reaction must end with the same _____________ it began with.

In chemical reactions, the number of atoms in the product is __________.

The mass of the reactants in a chemical reaction is 4.00 kg. After the reaction takes place completely, there will be __________.

n a chemical reaction you begin with 18 atoms. When the reaction is over you would expect to have __________ atoms remaining.

Which of the following statements is true regarding the Law of Conservation of Mass?

When liquid H2O is chemically separated in a scientific investigation it forms H2 gas and O2 gas. If the number of hydrogen and oxygen molecules does not change through the equation, then the mass will

Meals, Ready to Eat are an instant hot meal developed by the U.S. military for troops. The meal heats up when water is added to the magnesium metal tray because the chemical reaction between water and magnesium is an _________.

Meals, Ready to Eat are an instant hot meal developed by the U.S. military for troops. The meal heats up when water is added to the magnesium metal tray because the chemical reaction between water and magnesium is an _________.

If you wanted to design a product that cooked food without electricity, you might consider using chemicals that when mixed:

Mixing hydrochloric acid and sodium hydroxide is an example of an exothermic reaction. If you were holding a beaker while this chemical reaction took place, then you would expect it to feel _______ after the reaction was complete.

When substances are mixed, changes in heat energy provide evidence to show if a chemical reaction or a physical change has occurred. In chemical reactions, heat energy is often

Photosynthesis is a chemical reaction where energy is absorbed. A reaction where energy is absorbed is known as an __________.

Mixing baking soda and vinegar is an example of an endothermic reaction. If you were holding a beaker while this chemical reaction took place, then you would expect it to feel _______ after the reaction was complete.

Cellular respiration is an example of a chemical reaction where energy is released. Which of the following is a reaction where energy is released?

Mixing baking soda and vinegar is an example of an endothermic reaction. This means:

An iceberg melting in an ocean is an example of an endothermic process because:

Changes in the total amount of thermal energy provide evidence that chemical reactions have taken place. A chemical reaction in which energy has been absorbed is known as a(n):

Mixing hydrochloric acid and sodium hydroxide is an example of an exothermic reaction. This means:

Changes in thermal energy provide evidence that a chemical reaction has occurred. Which of the following BEST describes a chemical reaction in which energy is released?

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