Answer:
Carbon
Explanation:
![\frac{(98.9*12)+(1.1*13)}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B%2898.9%2A12%29%2B%281.1%2A13%29%7D%7B100%7D)
the answer gives you 12.011 which is closer to the amu of carbon
The volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm is 7.81L.
<h3>HOW TO CALCULATE VOLUME?</h3>
The volume of a gas can be calculated using the following formula:
PV = nRT
Where;
- P = pressure (atm)
- V = volume (L)
- R = gas law constant (0.0821 Latm/molK)
- n = number of moles
- T = temperature (K)
V = 0.323 × 0.0821 × 265 ÷ 0.900
V = 7.027 ÷ 0.9
V = 7.81L
Therefore, the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm is 7.81L.
Learn more about volume at: brainly.com/question/1578538
Answer: the stress hormone adrenaline will increase and cause your heart rate to increase. Your brain will also send a signal to your lungs to increase your breathing. The eye sight will start to blur, you also can begin to feel nauseous. also the body will start to function a little slower.
Explanation: I hope this help.
Answer:
The correct option is the last option
Explanation:
The chemical reaction provided in the question is a double-displacement reaction which is an exothermic reaction (which is the reason for the release of heat). An example of a double displacement reaction and exothermic reaction is the neutralization reaction illustrated below.
HCl + NaOH ⇒ NaCl + H₂O
From the law of conservation of energy, energy can neither be created nor destroyed, hence the total energy in a given system should ordinarily be the same (in the reactants and products), however <u>when energy is released in a reaction (as in the case with an exothermic reaction), it shows there are more bond energy in the reactants than in the products and it is the excess energy that is been released into the atmosphere.</u>