Answer:
The answer is False
Explanation:
If you want a visual representation, take water. When its left at room temperature the molecules are moving but not very fast. If you bring that water to a boil, the molecules move a lot faster and get closes together. If you were to freeze that water inside a closed container you would see the water inside expand because the molecules grow further apart.
To answer the question, while the molecules do move faster, they do not move further apart.
Which element combination had a covalent bond that was similar to an ionic bond? Explain.
o Sodium and Chlorine
o Sodium and Hydrogen
o Sodium and Oxygen
o Chlorine and Oxygen
o Chlorine and Hydrogen
o Hydrogen and Oxygen
Please help I'm confused. While preparing his garden for spring planting, Brian grabs a shovel that was left outside all winter. He notices its metal component is covered in a red substance. What question can Brian ask to determine if the red substance indicates a chemical or physical reaction?
Answer:
Was it in the ground or on the ground?
Explanation:
He should ask that because the red substance could be rust and if it was left in the ground then it wasnt left out so oxygen couldnt get at it so it
Answer:
COMPOSITION
Explanation:
The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change.
Is there any difference in the appearance, smell, or simple display of a sample of matter without a change in composition?
You have three drinks in front of you. you know how they are made, but are unsure which one has the highest concentration of juice crystals. The first drink has 10g of juice crystals dissolved in 50mL of water. The second drink has 15g of juice crystals dissolve in 100 mL of water and the third drink has 6g of juice crystals dissolve in 25 ml of water.
make a plan to figure out the concentration of each drink. what was the most concentrated drink? How did you determine this since all three drinks had different amounts of solvent?
Answer:
Explanation:
i think the last one is correct