Question 21.15

part (c)

please help, I will mark brainliest if answer is correct

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.

Roberto and laura are studying across from each other at a wide table. laura slides a 2.2 kg book toward roberto. if the net force acting on the book is 1.6 n to the right, what is the book acceleration

Science is the process of asking scientific questions about which of the following? a. test resultsb. the world around youc. theories and lawsd. hypotheses