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alex41 [277]
3 years ago
14

True or false for these!!!! Please help

Chemistry
1 answer:
8090 [49]3 years ago
8 0
False
True
True
False
True
False
Hope this helps!
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I will mark who is right!!!!!!! Please help it’s due in 10 minutes!
Helen [10]

Answer: I'm thinking it should be either stay the same or decrease

Explanation: If the size is increasing then the sample should not increase but decrease or stay the same. Mainly the sample would do the opposite of what the size is doing

3 0
4 years ago
What's the difference between velocity time graph and distance time graph​
Solnce55 [7]

Explanation:

Hi there!

I attached a photo of a unit summary that states the difference between s-t and v-t graph.

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8 0
3 years ago
What is ΔE in kJ for a system that receives 1.79 kJ of heat from surroundings and has 4.51 kcal of work done on it at the same t
kenny6666 [7]

Answer: 20.7 kJ

Explanation:

According to first law of thermodynamics:

\Delta E=q+w

\Delta E=Change in internal energy

q = heat absorbed or released

w = work done or by the system

w = work done on the system=-P\Delta V  {Work is done on the system is positive as the final volume is lesser than initial volume}

w = 4.51 kcal = 4.51\times 4.184kJ=18.9kJ    (1kcal = 4.184kJ)

q = +1.79 kJ   {Heat absorbed by the system is positive}

\Delta E=+1.79+(18.9)=20.7kJ

Thus \Delta E for a system that receives 1.79 kJ of heat from surroundings and has 4.51 kcal of work done on it at the same time is 20.7 kJ

4 0
3 years ago
There are __________ naturally occuring elements. <br> a.71<br> b.92 <br> c.103 <br> d.112
hodyreva [135]
The answer is B! hope it helps

3 0
3 years ago
Read 2 more answers
I’m confused and I don’t understand this, can someone help?
stellarik [79]

Wilma- tt

Wilbur- TT

c) 100% chance

d) 100% chance

it has been a while since I've done this so it could be wrong but im pretty sure its correct

Wilbur's family claims it is pure so they have TT

and his wife simply has big eyes so its tt

so the chances of their children having either eye shape is 100%

I'm sorry- im not too good at explaining it ><

3 0
3 years ago
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