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erik [133]
2 years ago
8

Which of these items is made up of one or more molecules? Gold Hydrogen Salt Neon

Chemistry
1 answer:
Nesterboy [21]2 years ago
3 0
2 one hope it’s right
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What must be true about two objects if heat is flowing between them?
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The temperatures of the objects must be different

Explanation:

if heat is flowing between two objects, then the objects must be at different temperatures.

7 0
2 years ago
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Calculate the molar mass of Co2
olga nikolaevna [1]

Answer:

44.01 g/mol

Explanation:

Add each elements atomic mass. For oxygen you will do that twice because their is two oxygens.

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8 0
2 years ago
Pls help and show work!!!
kumpel [21]

Answer:

44.9g

Explanation:

You have to convert grams of CH4 to moles, use the mole-to-mole ratio of CH4 to water, and convert back to grams.

(20.0g CH4)(1 mol CH4/16.04g)(2 mol H2O/1 mol CH4)(18.01 g H2O/ 1 mol) = 44.9127 g

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2 years ago
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What are other portals of entry besides needlesticks?
aivan3 [116]

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Inhalation (via the respiratory tract)Absorption (via mucous membranes such as the eyes) Ingestion (via the gastrointestinal tract)

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The opening where an infectious disease enters the host's body such as mucus membranes, open wounds, or tubes inserted in body cavities like urinary catheters or feeding tubes.

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Do your body cells always use cellular respiration to break down<br> glucose? Explain your answer.
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Yes cellular respiration is the only way to break down glucose.  Cellular respiration takes place by the cell using oxygen to break down glucose.  

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