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How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass

Find the enthalpy of neutralization of hcl and naoh. 87 cm3 of 1.6 mol dm-3 hydrochloric acid was neutralized by 87 cm3 of 1.6 mol dm-3 naoh. the temperature rose from 298 k to 317.4 k. the specific heat capacity is the same as water, 4.18 j/k g. a. -101.37 kj b. 7055 kj c. 10,1365 kj