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LuckyWell [14K]
3 years ago
15

What other weapons do sea stars have ?

Chemistry
2 answers:
Harlamova29_29 [7]3 years ago
6 0
None a lot of hand or sum
anastassius [24]3 years ago
6 0
I think five arms or 7 sorry if I’m wrong
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A scientist investigates on two unknown solutions. Which is not a scientific experiment she can perform on the solutions?
Serga [27]
As you can search and read the definition of a scientific experiment is the process of testing and finding the truth through this scientific method. Thus, all items are considered scientific experiment except for item "c" Ask her coworkers which solution they thick is better.
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3 years ago
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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.

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3 years ago
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And ironic bonds what happens to electrons? No
iren [92.7K]

Answer:

metals donate electrons to nonsmetals

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3 years ago
Can somebody plz help answer all of these questions right it’s very important. If u can that will be amazing thanks!
Blababa [14]

Answer:

1. Mechanical energy

2. Heat/thermal energy

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Explanation:

Hope this helped!

4 0
3 years ago
Express 0.0000046 in scientific<br> notation.<br> [?]x10
aivan3 [116]

Answer:

4.6 x 10⁻⁶

Explanation:

In scientific notation, the number should be written in between 1 - 10 and multiplied by 10 raised to a power.

In this case, the decimal place should be placed in-between the 4 and the 6. To do this, you must move the decimal place 6 digits to the right. When you move the decimal place to the right, the 10 should be raised to a negative number.

As such, 0.0000046 in scientific notation is 4.6 x 10⁻⁶.

3 0
2 years ago
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