7marie is investigating energy transfers using two
thermometers.
the bulb of one thermometer is painted black and the
bulb of the other thermometer is painted silver.
the graph shows the results of the experiment.
a explain which type of energy transfer marie is
investigating

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions