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viva [34]
3 years ago
5

Materials are transported within a single celled organism by the

Chemistry
1 answer:
CaHeK987 [17]3 years ago
6 0
The cytoplasm transports materials within a single celled organism. that is the answer.
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How much would the temperature of 275 g of water increase if 36.5 kj of heat were added?
Andrew [12]

<u>Answer:</u> The temperature increase will be 31.70°C.

<u>Explanation:</u>

To calculate the increase in the temperature of the system, we use the equation:

q=mc\Delta T

where,

q = Heat absorbed = 36.5 kJ = 36500J

m = Mass of water = 275 g

c = Specific heat capacity of water = 4.186J/g^oC

\Delta T = change in temperature = ? °C

Putting values in above equation, we get:

36500J=275\times 4.186J/g^oC\times \Delta T\\\\\Delta T=31.70^oC

Hence, the temperature increase will be 31.70°C.

8 0
3 years ago
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Question 3(Multiple Choice Worth 2 points)
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The energy gained by the metal equals the energy lost by the water...
It is phrased this way because the focus is on the energy entering the system, more than it leaving the surroundings.
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Identify the form of energy that is converted into ther- mal energy by your body
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Chemical energy from food could be converted into thermal energy.
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4 years ago
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Which of the following elements has the greatest ionization energy? a Cl b K c P d Si
lana [24]

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Cl

i have no explanation

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Give reason why mendeleev's definition of transition elements is no longer acceptable​
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Mendeleev's periodic table

Dmitri Mendeleev

Like many scientists working at the end of the 19th-century the Russian chemist Dmitri Mendeleev (1834-1907) was looking for ways to organise the known elements. Mendeleev published his first periodic table of the elements in 1869.

Features of Mendeleev's tables

Mendeleev arranged the elements in order of increasing relative atomic mass. When he did this he noted that the chemical properties of the elements and their compounds showed a periodic trend. He then arranged the elements by putting those with similar properties below each other into groups. To make his classification work Mendeleev made a few changes to his order:

he left gaps for yet to be discovered elements
he switched the order of a few elements to keep the groups consistent
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3 years ago
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