Which of the following is not a pseudoscientific claim

Chemistry

1 answer:

marshall27 [118]3 years ago

4 0

What are the options?

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Will AWARED BRAINIEST ASAP

vovangra [49]

3 would be most rocky planets
4 would be true
5 would be closest planet to the sun
6 would be remains that never formed a planet
7 would be planet A orbits faster than planet B
8 would be Saturn

8 0

3 years ago

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Sofia is trying to find the density of a 25.0 g irregularly shaped solid. She filled a graduated cylinder with 25.0 mL of water.

castortr0y [4]

The volume of the solid is
56.5 ml - 25 ml = 31.5 ml
The mass of the solid = 25g
So the density is Mass/ Volume
25/ 31.5 = 0.79 g/ml

Since the solid has a lower density (0.79 g/ml) than the density of water (1g/ml) it will float on water

4 0

2 years ago

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How many liters will 2.76 mol CO2 occupy?<br> 2.76 mol<br> II

sergeinik [125]

This problem is providing information about the moles of carbon dioxide, 2.76 mol, and asks for the volume this amount takes up, turning out to be 61.8 L according to the Avogadro's law:

<h3>Avogadro's law:</h3><h3 />

In chemistry, gas laws are used to relate the behavior of gases by virtue of the their pressure, volume, temperature and moles; thus several gas laws exist for us to do so, however, we here focus on the Avogadro's law which relates the volume and moles when both temperature and pressure are held constant.

In such a way, since no information on the constant variables is given, we assume the mentioned carbon dioxide is at STP, (0 °C and 1 atm), which means that we can use the following equivalence statement derived from the ideal gas law (PV=nRT):

22.4 L = 1 mol

Hence, we calculate the required volume:

$2.76molCO_2*\frac{22.4L\ CO_2}{1molCO_2} =61.8L\ CO_2$