What do bacteria need to reproduce?

Chemistry

1 answer:

ExtremeBDS [4]4 years ago

5 0

Bacteria need a warm environment.

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The melting of ice is considered a physical change because:

crimeas [40]

Answer: C Hope it helps

Explanation:

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3 years ago

Assume that the partial pressure of sulfur dioxide, pso2, is equal to the partial pressure of dihydrogen sulfide, ph2s, and ther

xenn [34]

Given:

Sulfur dioxide and dihydrogen sulfide system

Vapor Pressure of water, H2O = 23 torr

P_SO2 = P_H2S

Temperature of the system = 298 K

Assume: Total pressure of the system is 1 atm = 760 torr

If partial pressure of SO2 is equal to the concentration of H2S, then,

760 = 0.5*PSO2 + 0.5PH2S
760 = PSO2

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3 years ago

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ValentinkaMS [17]

It is surface runoff

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3 years ago

Which phrase accurately describes an elliptical galaxy?

Crank

Answer:

Elliptical galaxies are one of the three types of galaxies. They have a rounded shape of an ellipse, like a stretched-out circle. They lack the swirling arms that are a main feature of spiral galaxies.

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3 years ago

Write a balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic aqueous solution. Be su

Vesna [10]

Answer:

Balanced half-reaction: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Explanation:

Balanced half-reaction for the reduction of gaseous oxygen to aqueous hydrogen peroxide in basic solution should be written in the following step-by-step manner:

Half-reaction: $O_{2}(g)\rightarrow H_{2}O_{2}(aq.)$

Balance H and O in basic medium: $O_{2}(g)+2H_{2}O(l)\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Balance charge: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

Balanced half-reaction: $O_{2}(g)+2H_{2}O(l)+2e^{-}\rightarrow H_{2}O_{2}(aq.)+2OH^{-}(aq.)$

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4 years ago