Wich cycle from the sun appears in cycles of about 11 years?
What property of most stars can b...
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What is the mass of each element in a 324.8 sample of co2
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What state of matter is ice a. liquid b. element c. solid d. gas
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When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
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