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Mkey [24]
2 years ago
15

Calculate the number of atoms in a 3.62 × 10³ g sample of strontium. ​

Chemistry
1 answer:
oksian1 [2.3K]2 years ago
5 0

hope it helps you ...........

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Plsz do solv this question hpl​
emmasim [6.3K]
We are given the resistance and voltage of this lamp and we are asked to find the current; the equation that relates these together is Ohm’s Law, V = IR. Simply plug and solve:

V = IR
(220 V) = I(484 Ohms)
I = 0.4545 Amps

The lamp has a current of 0.4545 Amps passing through it under these conditions.

Hope this helps!
7 0
3 years ago
If O2 molecule is saturated with outer electrons how can it gain electrons to form ions?​
PIT_PIT [208]

Answer: it will gain them by multiplying the electrons

Explanation:

its like 2 + 2=4

4+4=8

8 0
2 years ago
Part C<br> Number of molecules in 8.437x10-2 mol C6H6
N76 [4]

Answer:

There are 5.08\times 10^{22}\ \text{molecules of}\ C_6H_6  

Explanation:

In this problem, we need to find the number of molecules in 8.437\times 10^{-2} mol of C_6H_6.

The molar mass of C_6H_6 is 6\times 12+1\times 6=78\ g/mol

No of moles = mass/molar mass

We can find mass from above formula.

m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g

Also,

No of moles = no of molecules/Avogadro number

N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}

Hence, there are 5.08\times 10^{22}\ \text{molecules of}\ C_6H_6  

5 0
3 years ago
Frozen water is less dense than liquid water, allowing lake organisms to survive winter.
klasskru [66]

True.

hope this helps!

7 0
3 years ago
Read 2 more answers
What are the causes and consequences of climate change
Sati [7]

Answer: Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock.

Explanation: This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.

7 0
2 years ago
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