Having upset defending champions Germany in their opening game in Group F, Mexico proved again they will be a test for any side should they reach the knockout stages.
They are now level with Sweden in Group F on three points, behind leaders Mexico who have six.
Sweden took the lead in the 32nd minute when Ola Toivonen finished confidently after Kroos gave the ball away in midfield, chesting the ball down expertly before lifting it over Manuel Neuer.
Kroos lined up for a free kick as if he was going for goal but just tapped the ball to Reus, who held it with his toe as the defenders paused.
Low said he knew Germany would find it hard to break down the Swedish defence but told his players at half-time to keep playing their usual brand of precision football.
Plenty pointed out that Hernandez may need some singing lessons after today's game against South Korea, but we can't get enough of his face during an intense couple of minutes.
"When you lose against Sweden on Saturday, you're already on your way home so I have some boarding passes for you and your teammates", came Holmberg's opening gambit.
The closest they came to scoring in the first half was with a header from a corner which Mexico goalkeeper Guillermo Ochoa tipped over the bar.
Although they dominated possession against lacklustre opponents, Mexico also displayed their thrilling counter-attacking game with their second goal, when West Ham striker Hernandez added a neat finish to Hirving Lozano's surging run.
Substitute Mario Gomes gave the Germans a physical presence they had lacked, but he spurned two superb chances.
Kroos was heavily involved as Germany pushed for a victor, completing 15 passes after Jerome Boateng was sent off - as many as Sweden's entire team in that time.
Sweden forward John Guidetti said the German team later apologised for their actions.
From there the Germans launched the attack that led to substitute Jimmy Durmaz tripping Timo Werner and conceding the free kick that set up the chance for Kroos to curl in the victor.
More round of 16 spots were secured on day 10 of the FIFA World Cup. I think we'll need them.
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The radiant redhead also donned a cream floral headband using the same array of flowers that made up her miniature bouquet. Stepping out of the auto , she smiled broadly at the crowd gathered outside the venue and said "hello everyone".