combination Becher double combustion Lavoisier single phlogiston reaction phlogiston oxygen Stahl combination ACROSS 1.proposed the first idea of the Phlogiston Theory 3. reaction in which substance reacts with oxygen gas, releasing energy in the form of light and heat 5. developed experimentally based theory of the chemical reactivity of oxygen 7. it is a displacement reaction when the positive and negative ions of different compounds switch places, forming two different compounds. 9. a substance exists in all combustible bodies, and combustion to be released in DOWN 2. it is a change where a new substance is formed. 4. a kind of displacement in a chemical the reaction in which one element is replaced by another in a compound 6. founder of the phlogiston theory of compulsion 8. vital of life 10. reactants combine to form a single product
Answer (2)
Answer:This image shows a crossword puzzle related to chemistry, specifically focusing on the phlogiston theory and related concepts. Let's fill in the answers: ACROSS 1. STAHL (Georg Ernst Stahl proposed the phlogiston theory) 2. COMBUSTION (A combustion reaction involves a substance reacting with oxygen, releasing energy as light and heat) 3. LAVOISIER (Antoine-Laurent de Lavoisier developed a theory of oxygen's chemical reactivity) 4. DOUBLE DISPLACEMENT (This type of reaction involves the exchange of ions between two compounds) 5. PHLOGISTON (Phlogiston was a hypothetical substance believed to be released during combustion) DOWN 2. CHEMICAL REACTION (A chemical reaction is a process that leads to the formation of a new substance) 3. SINGLE DISPLACEMENT (This reaction involves one element replacing another in a compound) 4. BECHER (Johann Joachim Becher is associated with early ideas related to phlogiston) 5. OXYGEN (Oxygen is vital for life and involved in combustion) 6. SYNTHESIS or COMBINATION (A synthesis or combination reaction involves reactants combining to form a single product) Therefore, the completed crossword puzzle would have these answers in their respective positions. The image provided did not include a grid to fill in the answers, but this provides the solutions for each clue.
