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Sindrei [870]
3 years ago
14

Can you please help

Chemistry
1 answer:
Goshia [24]3 years ago
8 0

Answer:

1.alleviates boredom

2.sink

3.planet Krypton

4.American-style crosswords

5.Pho U

6.Southbound - 5 a.m. to 11 a.m. Northbound - 11:15 a.m. to 11 p.m. Closed: 11 p.m. - 5 a.m.

7.Asia is the largest and most populous continent in the world, sharing borders with Europe and Africa to its West, Oceania to its South, and North America to its East.

8.Retinoids. This term is used for vitamin A compounds, such as retinol and retinoic acid. These ingredients have long been used topically to help repair sun-damaged skin and reduce fine lines and wrinkles.

9.he Sam Browne belt is named after Sir Samuel James Browne, VC. Browne began his service in India in April 1849 as Second in Command of the 2nd Regiment of Punjab Cavalry, the unit which also later took his name (22nd Sam Browne's Cavalry). ... The belt had two shoulder pieces when a pistol was added.

10.graf

11. You can recognize a genuine Guylian Sea Shell by the Guylian G- stamp on every chocolate. Their marbled and beautifully shining shell is made of a unique mix of Belgian milk, dark and white chocolate. Look at our chocolates very closely and you'll notice that not two seashells have exactly the same marbling pattern.

12.Opposite of characterized by economy and good management of money and resources. spendthrift. wasteful.

13.In the meantime, it's believed that the planet's total helium supply is running dry. If our supply ran out, it could spell the end of MRI testing, LCD screens and birthday-party balloons. Or it could make all of those things much more expensive.

14.Beryllium is unique in both the diversity of its portfolio and the patience with which it invests. With only a single investor to satisfy

15.Mickey Mouse. Pluto is a cartoon character created by The Walt Disney Company. He is a yellow-orange color, medium-sized, short-haired dog with black ears. Unlike most Disney characters, Pluto is not anthropomorphic beyond some characteristics such as facial expression. He is Mickey's pet.

16.Elemental Manipulation is a branch of magic and spells that, like it suggests, involves the four elements: Earth, Air, Fire and Water. This is the only type of magic Wizards could use during the Wizard Competition.

17.Examples include the Beatles, an intentional misspelling of "beetles", the Byrds, and Led Zeppelin, in which "led" was deliberately misspelled to make clear it is pronounced /lɛd/ (as in the metal lead) rather than the other pronunciation of "lead", /liːd/.

18.Name of a goofy convict - Silicon - Si. 14. Mr. Mony's enemy - Antimony - Sb. 15. What you do to flowers - Platinum - Pt.

19.Sophia Rose Stallone is the oldest sister being born in Miami, Florida, on August 27, 1996 which makes her 24. Middle sister Sistine Rose Stallone, 22, was born in Los Angeles, California, on June 27, 1998. ... The sisters also have two half-brothers from dad Sylvester's first marriage.

Explanation:

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Which of the reactions are spontaneous (favorable)? A. DHAP↽−−⇀glyceraldehyde-3-phosphateΔ????=3.8 kJ/mol B. C2H4+H2−→−−Rh(I)C2H
dalvyx [7]

Answer:

The spontaneous reactions are:

B. C_{2}H_{4} + H_{2} \overset{Rh(I)}{\rightarrow}C_{2}H_{6} ; <u>ΔG= −150.97 kJ/mol  </u>

D. C₆H₁₃O₉P + ATP ⟶ C₆H₁₄O₁₂P₂ + ADP; <u>ΔG = −14.2 kJ/mol  </u>

Explanation:  

Gibbs free energy , denoted by ΔG, is the <u>quantitative measure of the favorability or spontaneity</u> of a given process or chemical reaction that is carried out at constant temperature (T) and pressure (P).

Therefore, Gibbs free energy in J: ΔG = ΔH - TΔS

Here, ΔH is the change in enthalpy and ΔS is the change in the entropy

For a given chemical reaction to be <u>spontaneous or favorable</u>, ΔG should be negative (ΔG < 0).

A. DHAP ⇌ glyceraldehyde-3-phosphate ; <u>ΔG = 3.8 kJ/mol  </u>

<u>The value of ΔG is positive (ΔG > 0). Therefore, this reaction is not spontaneous.</u>

B. C_{2}H_{4} + H_{2} \overset{Rh(I)}{\rightarrow}C_{2}H_{6} ; <u>ΔG= −150.97 kJ/mol  </u>

 <u>The value of ΔG is negative (ΔG < 0). Therefore, this reaction is spontaneous.</u>

<u />

C. glutamate + NAD⁺ + H₂O ⟶ NH⁴⁺ +α-ketoglutarate + NADH + H⁺ ; <u>ΔG = 3.7 kcal/mol   </u>

<u>The value of ΔG is positive (ΔG > 0). Therefore, this reaction is not spontaneous.</u>

<u />

D. C₆H₁₃O₉P + ATP ⟶ C₆H₁₄O₁₂P₂ + ADP; <u>ΔG = −14.2 kJ/mol  </u>

 <u>The value of ΔG is negative (ΔG < 0). Therefore, this reaction is spontaneous.</u>

<u />

E. L -malate + NAD⁺ ⟶ oxaloacetate + NADH + H⁺; <u>ΔG = 29.7 kJ/mol </u>

<u>The value of ΔG is positive (ΔG > 0). Therefore, this reaction is not spontaneous.</u>

5 0
3 years ago
Write 23,665,700 in Scientific Notation with 4 significant figures.
Aloiza [94]

<u>Answer:</u> The given number in scientific notation is 2.367\times 10^{7}

<u>Explanation:</u>

Scientific notation is the notation where a number is expressed in the decimal form. This means that the number is always written in the power of 10 form. The numerical digit lies between 0.1.... to 9.9.....

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

We are given:

A number having value = 23,665,700

Converting this into scientific notation, we get:

As, the decimal is shifting to left side, the power of 10 will be positive.

\Rightarrow 23,665,700=2.367\times 10^{7}

Hence, the given number in scientific notation is 2.367\times 10^{7}

3 0
4 years ago
A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of ga
liubo4ka [24]
1) mol fraction of gas X= 2/(6+2)=2/8=1/4
2) mol fraction of gas Y= 6/(6+2)=6/8=3/4
3) Partial pressure of X = 1/4*2.1 atm=0.53 atm
4) Partial pressure of Y = 3/4*2.1=1.6 atm
6 0
3 years ago
Read 2 more answers
PLEASE HELP
nata0808 [166]

Answer:

Is this math? Cause as a fourth grader, I can do Algebra, but not this.

Explanation:

7 0
2 years ago
What is emitted during gamma radiation?
LenKa [72]
Packets of energy called gamma particles
5 0
3 years ago
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