2021 pc physical/chemical changes, pha... multiple - choice question what cannot be broken down by physical…
2021 pc physical/chemical changes, pha... multiple - choice question what cannot be broken down by physical or chemical means? element compound mixture
Answer
Brief Explanations:
Elements are pure substances that cannot be broken down into simpler substances by physical or chemical means. Compounds can be broken down into elements by chemical means, and mixtures can be separated into their components by physical means.
Answer:
element