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tensa zangetsu [6.8K]
3 years ago
10

How many millimeters are there in 5.12E5 kilometers?

Chemistry
1 answer:
inessss [21]3 years ago
4 0

Answer:

512,000,000,000 mm

Explanation:

5.12 x 10^5 km = 512,000 km

1,000,000 mm = 1 km

512,000 x 1,000,000 = 512,000,000,000

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Ocean waves observed to travel along the water surface during a developing storm. A coast guard weather station observes that th
yawa3891 [41]

The horizontal distance represents wavelength λ. The time represents the period of the wave T.

Wave speed is given by v= λ/T

Hence, those are the only parameters needed.


Note: the vertical distance is for calculating amplitude which is not used in calculating wave speed.

6 0
4 years ago
Propane C3H8 is a hydrocarbon tht is commonly used as a fuel
Mariulka [41]

Answer:C3H8 +5O2-- >3CO2+4H2O, 330L of air,Hof C3H8= 2323.7 KJ/mol,dT=75.30

Explanation:

First We need to find a balanced equation to depict the combustion of the propane:

C3H8 +5O2-- >3CO2+4H2O

b)

25g C3H8*\frac{1mol C3H8}{44gC3H8} *\frac{5molO2}{1molC3H8}* \frac{32gO2}{1mol O2}*\frac{1L air}{0.275g}

330L of air

25 g C3H8 are equal to 44g and 5 mol of O2 will react with a mol of C3H8, each mol of O2 weigh 32g and for each L of air contains 0.275g of O2

c) Hof C3H8= -(-285.8\frac{KJ}{mol}*4mol +-393.5*3mol

the enthalpy of formation of propane will be the negative of the sum of the enthalpy of formation multiplied by the mols of the H2O and CO2

Hof C3H8= 2323.7 KJ/mol

d) We know that each 44g of C3H8(1mol) transfer 2219.2 KJ then:

25g\frac{2219.2KJ}{44g C3H8} = 1260.9KJ

We use the equation of heat transfered

Q=mCpdT

1260.9KJ= 4KJ *4.186KJ/Kg*°C  *dT

We clear the equation

Q/mCp=dT

dT=75.30

4 0
3 years ago
Three beakers contain clear, colorless liquids. one beaker contains pure water, another contains salt water, and another contain
tiny-mole [99]
First, we'll identify the beaker containing pure water as follows:
We'll take equal masses from each of the three beakers and measure the mass of each.
We'll then identify the density of each by using the rule : density =mass/volume
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Then, we'll differentiate between the salt and sugar solution by measuring the conductivity of each solution. Salt solution is a good conductor while solution of sugar is a bad conductor.
8 0
4 years ago
Dependence definition no more than 7 words
DochEvi [55]
Reliance on something or someone for support. 



Hope this helps 
7 0
3 years ago
What is the mode of action of most antifungal drugs?
Goshia [24]

Inhibition of protein synthesis is the mode of action done by most antifungal drugs.

<h3>What is the mode of action of antifungal drugs?</h3>

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So we can conclude that inhibition of protein synthesis is the mode of action done by most antifungal drugs.

Learn more about drug here: brainly.com/question/26254731

3 0
2 years ago
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