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Gala2k [10]
3 years ago
5

Is the mantle hotter than the core true or false

Chemistry
2 answers:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer:

True

Explanation:

The heat of the earths mantle is estimated to be between 1000-3700 degrees celcius, and the earths core is estimated to be higher than 5200 degrees Celsius so even if the higher end estimates are true for the mantle it wouldn’t affect the answer.

Also the fact the core is closer to the center of the earth it ends up being hotter due to the pressure being higher the lower you go as the ground below has to carry more weight above.

sources:

“National Geographic.” National Geographic, https://www.nationalgeographic.org/encyclopedia/mantle/. Accessed 8 May 2021.

“National Geographic.” National Geographic, https://www.nationalgeographic.org/encyclopedia/core/. Accessed 8 May 2021.

hram777 [196]3 years ago
3 0

Answer:

sure mantle is hotter than the core

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Binary ionic compounds are named in what pattern?
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Answer: The correct answer is option a.

Explanation: Binary ionic compounds are the compounds made up of two ions, one is cation which is metal and another is anion which is a non-metal.

Rules for the naming of Binary Ionic compound.

1. First write the full name of cation.

2. The anion is named after using the suffix '-ide'. For example: If the anion is bromine, the name will be bromide and so on.

3. If the metal atom is Transition element, then the roman numeral is included after the metal name to indicate the oxidation number of the metal.

So, in order to write the name of Binary Ionic Compound, we first write metal followed by non-metal. Hence, the correct option is option a.

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4 years ago
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Wind and moving water provide ______________________ energy. chemical
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4 0
3 years ago
If a laser light is compose of photons each with an energy of 4.58 × 10−19 J, what is the photon energy of this light in units o
kap26 [50]

Answer : The photon energy of this light in units of nanometers, (nm) is, 4.34\times 10^{-2}nm

Solution :

Formula used :

E=\frac{h\times c}{\lambda}

where,

E = energy of photon = 4.58\times 10^{-19}J

h = Planck's constant = 6.626\times 10^{-34}Js

c = speed of light = 3\times 10^8m/s

\lambda = wavelength = ?

Now put all the given values in the above formula, we get:

4.58\times 10^{-19}J=\frac{(6.626\times 10^{-34}Js)\times (3\times 10^8m/s)}{\lambda}

\lambda=4.3017\times 10^{-7}m=434.017\times 10^{-9}m=434.017nm=4.34\times 10^{-2}nm

conversion used : (1nm=1\times 10^{-9}m)

Therefore, the photon energy of this light in units of nanometers, (nm) is, 4.34\times 10^{-2}nm

5 0
3 years ago
Look at picture and answer will mark brainliest. Please explain your answer
german

Answer:

answer is B thats all...

8 0
3 years ago
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The normal range of the pH of blood is between 7.35 and 7.45; variations beyond this range have significant health implications.
patriot [66]

Answer:

The hydrogen ion concentrations associated with these pH value 7.35 is 4.5\times 10^{-8} M

The hydrogen ion concentrations associated with these pH value 7.45 is 3.6\times 10^{-8} M.

Explanation:

To calculate the pH of the solution, we use the equation:

pH=-\log[H^+]

We are given:

1) pH = 7.35

Putting values in above equation, we get:

7.35=-\log[H^+]

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The hydrogen ion concentrations associated with these pH value 7.35 is 4.5\times 10^{-8} M

2) pH = 7.45

Putting values in above equation, we get:

7.45=-\log[H^+]

[H^+]=3.548\times 10^{-8}M \approx 3.6\times 10^{-8} M

The hydrogen ion concentrations associated with these pH value 7.45 is 3.6\times 10^{-8} M.

8 0
3 years ago
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