In the diagram, an activity which is happening to the temperature at Point B is that: C. The temperature is not rising because the heat is being used to break the connections between the molecules.
<h3>What is matter?</h3>
Matter can be defined as any physical object or body that has both mass and takes up space. This ultimately implies that, the mass of a physical object measures the amount of matter the object contains.
<h3>What is heat?</h3>
In Science, heat is sometimes referred to as thermal energy and it can be defined as a form of energy that is transferred from a physical object (body) to another due to a difference in temperature.
By critically observing the diagram, we can reasonably infer and logically deduce that matter has dynamic states depending on the composition of its atoms and at point B the temperature remained constant (not rising) because the quantity of heat generated is used for breaking any form of connection between the molecules.
Read more on matter here: brainly.com/question/24783543
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I think the correct answer from the choices listed above is the last option. Household hazardous waste can be eliminated by preparing your own cleaning products using the following ingredients except Windex.
It is a chemical product that is hazardous.
Explanation:
Windex may be a glass and hard-surface cleaner. Windex was unreal by the Drackett Company in 1933 and has been marketed throughout.Windex cannot be used.
Equation of reaction
<span>KOH+HNO3--->KNO3+H2O </span>
<span>CA=6.0M, CB=2.0M, VA=?, VB=39ml, na=1, nb=1 </span>
<span>CAVA/CBVB=na/nb </span>
<span>6*VA/2*39=1/1 </span>
<span>6VA/78=1 </span>
<span>6VA=78 </span>
<span>VA=78/6. VA=13ml. </span>
<span>VA=13ml.</span><span>
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Answer:
P4Se3
Explanation:
Applying the Law of Conservation of Mass:
(133 mg total) - (45.8 mg P) = 87.2 mg Se
Dividing by the molar mass,
Phosphorus:-(45.8 mg P) / (30.97376 g P/mol) = 1.4786 mmol P
Selenium:-(87.2 mg Se) / (78.96 g Se/mol) = 1.1044 mmol Se
Divide by the smaller number of millimoles:
(1.4786 mmol P) / 1.1044 mmol = 1.339
(1.1044 mmol Se) / 1.1044 mmol = 1.000
multiply by 3, to get a whole number interger. then round to the nearest whole numbers to find the empirical formula.
Therefore the empirical formula is P4Se3