Answer:
Our body loses heat by the evaporation of sweat, which is like a tea kettle boiling on a stove top. Both are being heated through conduction, the tea kettle from the stove top and the sweat from our body.
Explanation:
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Which picture correctly shows the path of the reflected light ray?
Select one:
a. A
b. B
c. C
d. D
The picture that correctly shows the path of the reflected light ray is: Picture A.
A ray diagram can be defined as the graphical representation of the possible paths that a light wave takes from one point (source) to another.
Basically, some of the phenomenon and properties associated with light ray include the following:
RefractionDiffractionInterferenceReflectionA reflected light ray completely bounces off a surface and as such, light wave do not pass through the surface as illustrated in Picture A.
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If 5.3 g of gallium reactions with 5.3 g of oxygen according to the following reaction, how many grams of gallium oxide can be produced?
Word equation:
Formula equation:
(Must be balanced!)
Answer:
can you help mine please
How many molecules of chlorine are needed to react with 56.Og of iron to form Iron (III) chloride (FeCl3)?
250 mL of argon gas is held in a flexible vessel shown above. If the pressure changes to 12.0 atm, what is the new volume of
the gas at 20 C?
The new volume of the gas at 20 °C is 205 mL
The correct answer to the question is Option C. 205 mL
From the question given, the following data were obtained:
Initial volume (V₁) = 250 mL
Initial temperature (T₁) = 25 °C = 25 + 273 = 298 K
Initial pressure (P₁) = 10 atm
Final temperature (T₂) = 20 °C = 20 + 273 = 293 K
Final pressure (P₂) = 12 atm
Final volume (V₂) =?The new volume of the gas can be obtained by using the combine gas equation as follow:
[tex] \frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2} \\ \\ \frac{10 \times 250}{298} = \frac{12 \times V_2}{293} \\ \\ cross \: multiply \\ \\ 298 \times 12 \times V_2 = 10 \times 250 \times 293 \\ \\ divide \: both \: side \: by \: 298 \times 12 \\ \\ V_2 = \frac{10 \times 250 \times 293}{298 \times 12} \\ \\ V_2 = 205 \: mL \\ [/tex]
Therefore, the new volume of gas is 205 mL
Learn more: https://brainly.com/question/25763809
Is krypton a good or poor conductor of electricity? Why? I
Answer:
No it is not a good conductor
Explanation:
Krypton is classified as a gas and nonmetal. Like many nonmetals and gases, krypton is an insulator, so it is a relatively poor conductor of heat and electricity.
HELP !!
Given the balanced chemical equation:
4 Fe + 3 O2 ----> 2 Fe2O3
How many moles of iron(III) oxide, Fe2O3 , will be produced if 12 moles of oxygen gas, O2 , are consumed
Answer:
8 moles of Fe2O3
Explanation:
You can use the mole ratio give. For every 3 O2 you produce 2 Fe2O3. With this you can find the number of moles. 12 O2 multiplied by the ratio 2/3 gives you 8 moles