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noname [10]
3 years ago
6

10.An alpha particle (a) same as *

Chemistry
1 answer:
alisha [4.7K]3 years ago
5 0
Is identical to the nucleus of a normal atomic mass four helium atom i.e. a doubly ionised helium atom
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The circles in the model represent atmospheric layers. Make each description with the correct name of each layer.
Masja [62]

Answer:

The bottom is troposhere the next is sratoshere,mesosphere,thermosphere then exoshere

Explanation:

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What characteristics are used to clarify an area as a wetland?
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Soil covered, saturated, submerged, flooded w water, standing water
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Molecule contains carbon, hydrogen and sulfur atoms. When a sample of 0.535g of this compound is burnt in oxygen, 1.119 g of CO2
OLga [1]

Answer:

The empirical formula is, C4H4S

Explanation:

Number of moles of carbon = 1.119 g/ 44g/mol = 0.025 moles

Mass of Carbon= 0.025 moles × 12 g/ mole = 0.3 g

Number of moles of hydrogen = 0.229/18g/mol × 2 = 0.025 moles

Mass of hydrogen = 0.025 moles × 1 = 0.025 g

Number of moles of sulphur = 0.407g/ 64 g/mol = 0.0064 moles

Mass of sulphur= 0.0064 moles ×32 = 0.2 g

Now we obtain the mole ratios by dividing through by the lowest ratio.

C- 0.025 moles/ 0.0064 moles, H- 0.025 moles/ 0.0064 moles, S- 0.0064 moles/0.0064 moles

C4H4S

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2 years ago
How do solids liquids and gases differ at the molecular level?
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Solids are packed together closely, liquids are farther apart but still relatively close, and gases are very far apart with lots of space.
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3 years ago
Help meee, if u help me i give u a pizza :)
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