3 years ago

Need help !

Chemistry

1 answer:

yulyashka [42]3 years ago

6 0

B is the answer loll

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PLEASE HELP!!!!

castortr0y [4]

Answer:

IS THE CORRECT ANSWER

6 0

3 years ago

16. Mass = 10g

inessss [21]

Actual volume=Final Volume-initial volume

$\\ \sf\longmapsto 50ml-30ml=20ml$

Now

$\\ \sf\longmapsto Density=\dfrac{Mass}{Volume}$

$\\ \sf\longmapsto Density=\dfrac{10}{20}$

$\\ \sf\longmapsto Density=2g/ml$

3 0

3 years ago

The specific heats and densities of several materials are given below: Material Specific Heat (cal/g·°C) Density (g/cm3) Brick 0

abruzzese [7]

<u>Answer:</u> The change in temperature is 84.7°C

<u>Explanation:</u>

To calculate the change in temperature, we use the equation:

$q=mc\Delta T$

where,

q = heat absorbed = 1 kCal = 1000 Cal (Conversion factor: 1 kCal = 1000 Cal)

m = mass of steel = 100 g

c = specific heat capacity of steel = 0.118 Cal/g.°C

$\Delta T$ = change in temperature = ?

Putting values in above equation, we get:

$1000cal=100g\times 0.118cal/g^oC\times \Delta T\\\\\Delta T=\frac{1000cal}{100g\times 0.118cal/g^oC}\\\\\Delta T=84.7^oC$

Hence, the change in temperature is 84.7°C

5 0

3 years ago

What is the diet of sloth bears ?

Svetllana [295]

This is what I got hope it helps

4 0

3 years ago

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Which of the following distinguishes a nuclear reaction from a chemical reaction? a.It involves atoms.

MissTica

The option that distinguishes a nuclear reaction from a chemical reaction is D. there is a change in the nucleus.
During a nuclear reaction, two light nuclei combine in order to create a new, heavier one which is different than those two original ones and has additional particles that it didn't have originally. This is what makes the difference between these two reactions.

7 0

3 years ago

Read 2 more answers