Answer:
1.69 moles of Xenon gas will occupy a volume of 37.8l in STP conditions
Explanation:
We use the formula PV=nRT. The conditions STP are 1 atm of pressure and 273 K of temperature.
PV=nRT ----> n=PV/RT
n= 1 atm x 37, 8 L/ 0,082 l atm/K mol x 273K
n=1,688555347 mol
Answer: first photo in my opinion would be d or c, but mostly d!
2nd photo would be either a!
hope i helped!
Answer:
extinction
Explanation:
Based on the information provided in regards to the situation at hand it can be said that both of these examples illustrate extinction. This term refers the fading out of conditioned responses over time if they are not properly reinforced. This is what is happening in this situation since the dog is not reinforced with food for salivating then the response begins to fade until it is completely gone.
Answer:
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<em><u>B cells</u></em></h3>
Explanation:
B cells are the major cell type involved in the humoral immune response. When a foreign antigen (one coming from a pathogen, for example) is detected, B cells in the body that recognize that antigen will begin to produce antibodies as a means of fighting off the foreign invader.
Hope this help!
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