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Questions in chemistry

[Free] Oxygen is denoted as \(^{16}_{8}\text{O}\). How many protons and neutrons does an oxygen atom have?

[Free] How can a convection current enable a hawk or eagle to soar upward without flapping its wings?

[Free] What did J.J. Thomson discover about the atom that changed the previously used atomic model?

[Free] The core of an atom contains protons and __________.

[Free] If something is made of atoms, it must be _____.

[Free] Water is considered a compound of hydrogen and oxygen rather than a mixture of hydrogen and oxygen. Explain why this is the case.

[Free] What are the general characteristics of substances chemists use to separate mixtures into individual substances?

[Free] How many grams of CO₂ are produced by burning 8.32 g of C₄H₁₀?

[Free] What are four physical properties of an orange?

[Free] Water's _____ property creates positive and negative ions, which are essential for chemical reactions.