mrs. rushing fills a balloon with hydrogen gas to demonstrate its ability to burn. which combination could…

mrs. rushing fills a balloon with hydrogen gas to demonstrate its ability to burn. which combination could she use to produce the hydrogen she needs?\nnaoh and oil\nzn and nacl\nh₂so₄ and caco₃\nmg and hcl

mrs. rushing fills a balloon with hydrogen gas to demonstrate its ability to burn. which combination could she use to produce the hydrogen she needs?\nnaoh and oil\nzn and nacl\nh₂so₄ and caco₃\nmg and hcl

Answer

Brief Explanations:

Metals react with acids to produce hydrogen gas. Magnesium (Mg) is a metal and hydrochloric acid (HCl) is an acid. Their reaction can produce hydrogen gas. The other combinations do not produce hydrogen gas. For example, NaOH and oil do not react to give hydrogen, Zn and NaCl do not react to produce hydrogen in the way needed here, and the reaction of H₂SO₄ and CaCO₃ produces carbon - dioxide gas, not hydrogen.

Answer:

D. Mg and HCl