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cricket20 [7]
3 years ago
10

What are THREE reasons that a creature might use MIMICRY

Chemistry
1 answer:
8_murik_8 [283]3 years ago
7 0

Answer:

- hide from predators

- in search of food

- shelter and protection

thenks and mark me brainliestt :))

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The statement which describes a physical property of the element oxygen is ​
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The correct answer is option 3. Oxygen having a density of 1.43 grams per liter describes a physical property of the element oxygen. A physical property is a property that can be observed or measured without changing the composition of matter and density is one physical property.
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HELP ASAP<br> In which reaction are the atoms of elements rearranged?
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C. Explain ONE way in which the USA & USSR competed against each other during the Cold

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Dr. Khan works for the marketing department of a company that manufactures mechanical toy dogs. Dr. Khan has been asked to assess the effectiveness of a new advertising campaign that is designed to be most persuasive to people with a certain personality profile. She brought four groups of participants to the lab to watch the video advertisements and to measure the likelihood that they would purchase the toy, both before and after watching the ad. The results of Dr. Khan’s study are presented below.

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Explain the limitations of Dr. Khan’s study based on the research method used.

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What volume of product is produced when 20.0 Mg of liquid hydrogen reacts with
mihalych1998 [28]

Answer: The volume of product formed is 0.26 L

Explanation:

\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}    

\text{Moles of} H_2=\frac{0.02g}{2g/mol}=0.01moles

2H_2(l)+O_2(l)\rightarrow 2H_2O(g)

As O_2 is the the excess reagent, H_2 is the limiting reagent as it limits the formation of product.

According to stoichiometry :

2 moles of H_2 give = 2 moles of H_2O

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PV=nRT

P = pressure of gas = 101.325 kPa = 1 atm

V = Volume of gas = ?

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R = gas constant =0.0821Latm/Kmol

T =temperature =40^0C=(40+273)K=313K

V=\frac{nRT}{P}

V=\frac{0.01mol\times 0.0821L atm/K mol\times 313K}{1atm}=0.26L

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5. How many moles are there in 222.3 grams of Ca(OH)2? (1) 1.5 mol (3) 5.5 mol (2) 3.0 mol (4) 22.3 mol 5​
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