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2 years ago

What species in the food web feed on algae?

Chemistry

1 answer:

Tomtit [17]2 years ago

6 0

Answer:

frogs, fish and aquatic (water-dwelling) insects

Explanation:

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The threat of another hurricane is a problem for New York City. What have people

Masteriza [31]

The only logical answer is A

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3 years ago

Can someone answer 4 for me please?

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2 years ago

Vanillin (used to flavor vanilla ice cream and other foods) is the substance whose aroma the human nose detects in the smallest

balu736 [363]

Answer:

Cost to supply enough vanillin is $3.2\$$

Explanation:

Threshold limit of vanillin in air is $2.0\times 10^{-11}g$ per litre means there should be $2.0\times 10^{-11}g$ of vanillin in 1L of air to detect aroma of vanillin.

$1ft^{3}=28.32L$

So, $5.0\times 10^{7}ft^{3}=(5.0\times 10^{7}\times 28.32)L$

So amount of vanillin should be present to detect = $(2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32)g$

As cost of 50 g vanillin is $112\$$ therefore cost of $(2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32)g$ vanillin = $(2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32\times 112)\$ = 3.2\$$

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3 years ago

For c2h3o2−, write an equation that shows how the anion acts as a base.

velikii [3]

The synthetic compound Zn(C2H3O2)2 is zinc acetic acid derivation. The molecular composition demonstrates that the mixes incorporate zinc, spoke to by Zn; carbon, spoke to by C; hydrogen, spoke to by H; and oxygen, spoke to by O. Below is the an equation that shows how the anion acts as a base:

C2H3O2−(aq)+H2O(l)⇌HC2H3O2(aq)+OH−(aq)

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3 years ago

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How do you draw the structure of 5-iodo-2-methoxyhexane?

monitta

The structure is in attachment.
Hexane is alkane (acyclic saturated hydrocarbon, carbon-carbon bonds are single) of six carbon atoms. Methoxy group is the functional group consisting of a methyl group bound to oxygen. Iodo is substituent consists of ionide (element in 17 periodic group).

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2 years ago

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