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3 years ago

Which substance is a heterogeneous mixture?

Physics

2 answers:

asambeis [7]3 years ago

6 0

Answer:

If you have the anser choices the answer is cereal because you can see the different contents, making it heterogeneous. The rest of the options, whether mixtures or natural elements, are homogeneous because all the contents come together nicely.

Explanation:

i took the test

anyanavicka [17]3 years ago

3 0

Answer:

A heterogeneous mixture is simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts.

Explanation:

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The velocity of an object includes its speed and what

SCORPION-xisa [38]

I believe that the correct answer you are looking for is the distance traveled

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In a clear cup there are three substances. Their densities are 3, 1, and 2. From top of the cup to the bottom, what would the or

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Answer:

1, 2 and 3

Explanation:

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2 years ago

A 1-kg iron frying pan is placed on a stove. The pan increases from 20°C to 250°C. If the same amount of heat is added to a pan

sergejj [24]

Here mass of the iron pan is given as 1 kg

now let say its specific heat capacity is given as "s"

also its temperature rise is given from 20 degree C to 250 degree C

so heat required to change its temperature will be given as

$Q = ms \Delta T$

$Q = 1*s*(250 - 20)$

$Q = 1*s*230$

now if we give same amount of heat to another pan of greater specific heat

so let say the specific heat of another pan is s'

now the increase in temperature of another pan will be given as

$Q = ms'\Delta T$

$1*s*230 = 1* s' * \Delta T$

now we have

$\Delta T = (\frac{s}{s'})*230$

now as we know that s' is more than s so the ratio of s and s' will be less than 1

And hence here we can say that change in temperature of second pan will be less than 230 degree C which shows that final temperature of second pan will reach to lower temperature

So correct answer is

<u>A) The second pan would reach a lower temperature.</u>

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2 years ago

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What is measured using micrometer?<br><br>

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Explanation:

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If the density of the object is high its molecular arrangement is compact while if the density is lows its molecular arrangement isnt that compact

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