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3 years ago

15

How might a geologist measure the distance of the earth movement along a fault line from a divergent plate tectonic?

1 answer:

Akimi4 [234]3 years ago

6 0

Answer:

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Determine the volume of 12.3 grams of formaldehyde gas at STP?

postnew [5]

9.184 liters CH2O at STP

I think this is correct. Good luck

3 0

3 years ago

Read 2 more answers

Complete combustion of 5.90 g of a hydrocarbon produced 19.2 g of CO2 and 5.89 g of H2O. What is the empirical formula for the h

scZoUnD [109]

$44g \ CO_{2} \ \ \ \rightarrow \ \ 12g \ C\\
19,2g \ CO_{2} \rightarrow \ \ \ x\\\\
x=\frac{19,2g*12g}{44g}\approx5,24g \ \ \ \Rightarrow \ \ n=\frac{5,24g}{12\frac{g}{mol}}\approx0,44mol\\\\\\
18g \ H_{2}O \ \ \ \rightarrow \ \ \ 2g \ H\\
5,89g \ H_{2}O \ \rightarrow \ \ y\\\\
y=\frac{5,89g*2g}{18g}\approx0,65g \ \ \ \ \Rightarrow \ \ n=\frac{0,65g}{1\frac{g}{mol}}=0,65mol\\\\\\
n_{C}:n_{H}=0,44:0,65\approx1:1\\\\
CH$

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2 years ago

Which is a correct comparison between the modern quantum model and John Dalton’s model of the atom?

REY [17]

Answer:

Explanation:

The modern model recognizes particles in the atom, whereas Dalton's model does not.

7 0

2 years ago

The probability?????????????????

olga55 [171]

Answer: 4/20

Explanation:

7 0

2 years ago

What is the density of a smaple if it weight 3.5 grams and has a volume of 2cm^3

Reil [10]

The density formula is:

density=mass/volume.

d=3.5g/2cm^3
d=1.75 g/cm^3

The density of the sample is 1.75 g/cm^3.

5 0

2 years ago