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butalik [34]
3 years ago
10

How many moles are in 3.85*10^4 grams of Ba(NO3)2

Chemistry
2 answers:
MA_775_DIABLO [31]3 years ago
7 0

Answer: answer is 261.3368.

Explanation:

tigry1 [53]3 years ago
3 0
3028 molucoles bro it’s lit
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Identify each of these substances as acidic, basic, or neutral. rainwater, pOH = 8.5 cola, pOH = 11 tomato juice, pOH = 10 liqui
LuckyWell [14K]
Below the ph of 7.0 is acidic. Anything above is basic and the ph of 7.0 is neutral
3 0
3 years ago
Read 2 more answers
A weight of 0.27 kilogram is<br> 1. 0.00027 mg<br> 2. 270 mg<br> 3. 27 mg<br> 4. 2.7 × 105 mg
julia-pushkina [17]
The answer is:  4)  " 2.7 * 10⁵  mg "   .
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Explanation:
________________________________________________________
Since all answer choices given are in "mg" ("milligrams");  we need to convert our given value, "0.27 kg" ("kilograms") to "mg" ("milligrams").
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Note the following "exact value" conversions:
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 1000 mg = 1 g ;
   1000 g = 1 kg. 

(0.27 kg) (1000 g / 1 kg) (1000 mg/1 g) = __?__ mg ;
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 The units of "kg", and "g" cancel to "1" and we are left with:
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0.27 * 1000 * 1000  mg  = 270,000 mg =  2.7 * 10<span>⁵ </span> mg ; which is:
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                                                               → Answer choice: # 4  .
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8 0
3 years ago
Please help
photoshop1234 [79]

Answer:

Atomic radius is directly proportional to Metallic reactivity in group 2.

Explanation:

Atomic radius is directly proportional to Metallic reactivity in group 2.

As we move down the group in group 2 which is called as the alkaline earth metals, the atomic number increases due to which the subshell increases. And the outermost shell's electron are less tightly held to the nucleus of the atom. Since the electrons are loosely held that means they can easily participate in reactions and that what makes it reactive down the 2nd group. Therefore alkaline earth metals with higher atomic number are more chemically reactive.

4 0
3 years ago
Write the ionic and half equation for H20.
Pavlova-9 [17]

2[H⁺] + [O²⁻] → H₂O

Explanation:

Half reactions are usually composed of components of oxidation-reduction (redox) reaction where one element is losing electrons while another is gaining so they can come together into a compound. The half-reaction shows part of a reaction where the combining elements are charged and the product, from the redox, is neutral.

In this case, the H⁺ is carrying the positive charge because it is donating an electron to O²⁻, which is the reason the O²⁻ is carrying the negative charge. Note that we need 2 H⁺ for every one O²⁻.  The O is being reduced while the H is being oxidized.

Learn More:

For more on half-reaction check out;

brainly.com/question/7570973

brainly.com/question/11577402

#LearnWithBrainly

6 0
3 years ago
I need help with these 4
storchak [24]

Rift Valley Examples

  • East African
  • Rhine Rift Valley (Germany)
  • Baikal Rift Valley (Russia)

Rift Valley Facts/Characteristics

  • Bordered by fault zones and separating land masses
  • A portion of land that drops, forming a valley.
  • Formed as tectonic plates move.

Fossils - Examples

  • Bones
  • Shells
  • Exoskeletons
  • Stone imprints of animals.

Non Examples of Fossils

  • Stones
  • rocks
  • Some bones (If they are fossils they will be a lot heavier than other bones.

Hope this helps.

5 0
3 years ago
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