The principal equipment of the meat inspector before a significant E. coli O157:h7 outbreak linked to hamburgers was a sharp knife.
<h3>What is E. coli?</h3>
Escherichia coli (E. coli) is a type of bacterium that ordinarily dwells in both human and animal intestines. But some strains of E. coli, most notably E. coli O157:H7, can result in intestinal infection. After the toxin they generate, E. coli O157:H7 and other strains that cause intestinal illness are known as Shiga toxin-producing E. coli (STEC). Many patients who have an E. coli infection recover completely. However, it may result in serious, even fatal, problems. These problems are more likely to occur in older adults, pregnant women, young children, and people with compromised immune systems.
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To determine the mass of each compound, we need to convert them into units of moles first. We use avogadros number to do this and use the molar mass of the compounds to convert to mass.
<span>3.01 × 1023 molecules H2O ( 1 mole / 6.022x10^23 kg) (18.02 g / 1 mole) = 9.01 g
8.32 × 1020 formula units CaBr2 </span>( 1 mole / 6.022x10^23 kg) (199.89 g / 1 mole) = 0.28 g<span>
1.93 × 1026 molecules XeF6 </span>( 1 mole / 6.022x10^23 kg) (245.28 g / 1 mole) = 78610.16 g
On the left side. The alkali metals are group 1, the alkaline earth metals are group 2, and the transition metals are groups 3-12.
Answer:
Catalysts help in increasing rates of reactions
