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3 years ago

8

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature

of the medium the type of wave the type of medium

1 answer:

Lena [83]3 years ago

4 0

Answer:

I believe its 1,2, and 5

Explanation:

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How many moles of n are in 0.185 g of n2o?

pickupchik [31]

The mass of $N_{2}O$ is 0.185 g.

To calculate the number of moles first calculate the molar mass of $N_{2}O$ .

$M_{N_{2}O}=2\times M_{N}+M_{O}$

Molar mass of nitrogen and oxygen is 14 g/mol and 16 g/mol respectively

Thus, $M_{N_{2}O}=2\times 14 g/mol+18 g/mol=44 g/mol$

Now, number of moles can be calculated from mass and molar mass as follows:

$n=\frac{m}{M}=\frac{0.185 g}{44 g/mol}=0.0042 mol$

Therefore, number of moles of 0.185 g $N_{2}O$ is 0.0042 mol.

8 0

4 years ago

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A sample of gold has a mass of 100 grams and a volume of 5cm^3, calculate the density by dividing the mass by volume

Dafna11 [192]

Answer:

20cm^2

Explanation:

Here, Density= Mass/ Volume

=100/5

= 20 cm^2

7 0

3 years ago

Brainliest to whoever gets it correct.

lakkis [162]

Answer:

replacement

Explanation:

here is the ans

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Which of the following atoms most easily loses an electron<br> Ba<br> Cl<br> Te<br> C<br> P

solong [7]

Ba! It is a metal and wants to lose 2 electrons ASAP

7 0

4 years ago

Choose all dat apply thankssssssssss

slamgirl [31]

Itz defs B and E it might be D also bit iffy on that

YEET GOOD LUCK DADDY

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4 years ago