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MariettaO [177]
3 years ago
14

Loren has the samples of elements that are listed below at room temperature. He exposes the samples to the same heat source unti

l each sample reaches a temperature of 90.0°C. 10 g of Al(s) (C subscript p. = 0.897 J/(gi°C)) 10 g of Ag(s) (C subscript p.= 0.234 J/gi°C ) 10 g of Fe(s) (C subscript p. = 0.450 J/gi°C) 10 g of Zn(s) (C subscript p. = 0.387 J/gi°C ) From first to last, which lists the order in which these samples will reach 90.0°C? Al, Fe, Zn, Ag Ag, Zn, Fe, Al Al, Fe, Ag, Zn Ag, Al, Zn, Fe
Chemistry
2 answers:
olya-2409 [2.1K]3 years ago
7 0

Answer: ag,zn,fe,al

Explanation:

took quiz already

il63 [147K]3 years ago
6 0

Answer:

Ag, Zn, Fe, Al

Explanation:

Edge 2021

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Based on two of the mole ratios between substances in a chemical reaction, which is the correct equation for the chemical reacti
agasfer [191]

Answer:

d) A  + 2B   →   3C

Explanation:

In given question the there are one mole of reactant A two moles of reactant B and three moles of product C are present.

1 mol A / 2 mol B                 1 mol A / 3 mol C

A : B     1 : 2                          A : C     1 :  3

So from given information option D is correct.

A  + 2B   →   3C

Here in this equation one mole of A , two moles of B and three moles of C are present.

Other options are incorrect because,

a) 3A  + 2B   →   C

In this chemical equation three  moles of A two moles of B and one mole of C are present. So it is incorrect.

b) A + B →   C

In this chemical equation one mole of A one mole of B and one mole of C are present. So it is incorrect.

C) 6A +6B →   2C

In this chemical equation six moles of A six moles of B and two mole of C are present. So it is incorrect.

4 0
4 years ago
Baking soda reacts with vinegar and forms a gas why is it chemical
777dan777 [17]
Its a chemical reaction because both are affected by the reaction and changed. hope this helps (ू• o •ू )
4 0
4 years ago
Read 2 more answers
7. The pediatrician suggested that Dr. Wright and Dr. Leftt would have differing viewpoints on how to treat Kayla. How will thei
Nataly [62]

Answer:

Hello, the question is incomplete. Please check Explanation below for the complete question.

Explanation:

"At the new office, the nurse weighed and measured Kayla, then took her temperature and reviewed her

symptoms with Sara. Doctor Hubble then came in to check Kayla. He had completed an internship and some

research in pediatric urology and immediately recognized the symptoms. He requested a urine sample, which

was successfully accomplished with a catheter7

, a procedure that was very uncomfortable for both Kayla and

Sara. The specimen was loaded with pus and blood cells.

“I think that in light of the urinary tract infection, Kayla should immediately

begin an antibiotic,” said Dr. Hubble. “She also needs a VCUG8

. This is a

voiding cystourethrogram is an n X-ray test that takes pictures of your bladder

and urethra while your bladder is full and while you are urinating.

The doctor also ordered an IVP8

, or an intravenous pyelogram, used to detect

anatomic abnormalities. This X-ray image would show the kidneys, bladder,

and ureters.

By the end of the week both tests had been completed and Sara, Matt, and

Kayla were back at the pediatrician’s office for a consultation. The tests had

revealed a diagnosis of bilateral duplicate collection systems (four ureters

instead of the usual two), hydronephrosis (urine collecting in the kidney

pelvis), and grades four and five reflux (urine doesn’t empty normally and backs up into the kidneys). Kayla’s

kidney function was markedly decreased on the right and partially limited on the left.

“I feel that you need to take Kayla to a specialist,” Doctor Hubble advised. “I recommend Dr. Leftt, a surgeon

who is an expert in pediatric urology. I also want you to be aware that within the pediatric urology community

there is some disagreement on the course of treatment—medical versus surgical management. You may also

want to consult with Dr. Wright. He’s equally as competent but will most likely take a medical view of how

Kayla should be managed. Perhaps you should meet with both doctors before deciding. Right now, I think

Kayla should have a daily antibiotic to prevent further infections and damage to her kidneys."

In order to solve to solve this particular Question, we must read and understand the article above on the clinical case of "what is wrong with Kayla?"

==================================

From the clinical case above we can see that Dr. Hubble suggest that they should meet Dr Left for surgical treatment for the patient while he also said that they should meet Dr. Wright for antibiotic treatment.

Both medical personnel that is Dr. Left and Dr. Wright are expected to assess the clinical state of the patient to determine the best option for the patient.

6 0
3 years ago
If a plant uses 44 grams of carbon dioxide and 18 grams of water to produce 32 grams of oxygen, how many grams of glucose are pr
Tems11 [23]
The balanced equation for the reaction is as follows 
6H₂O + 6CO₂ ---> C₆H₁₂O₆ + 6O₂

number of moles of CO₂ used - 44 g / 44 g/mol = 1 mol
number of moles of H₂O used - 18 g / 18 g/mol = 1 mol
stoichiometry of CO₂ to H₂O is 6:6 = 1:1
1 mol of CO₂ present and 1 mol of H₂O present therefore they are both fully used up in the reaction of molar ratio 1:1
number of moles of O₂ formed - 32 g/ 32 g/mol = 1 mol

stoichiometry of CO₂:H₂O:C₆H₁₂O₆:O₂ is 6:6:1:6
1 mol of CO₂ has reacted with 1 mol of H₂O to form 1 mol of O₂ and x mol of C₆H₁₂O₆

the number of C₆H₁₂O₆ moles is 1/6th of CO₂ moles used up
since CO₂ moles - 1 mol 
therefore C₆H₁₂O₆ moles formed - 1/6 mol = 0.167 mol
mass of glucose formed - 0.167 g x 180 g/mol = 30 g 
therefore 30 g of glucose is formed 
5 0
3 years ago
To what volume would you need to dilute 200 mL of a 5.85M solution of Ca(OH)2 to make it a 1.95M solution?
Blizzard [7]

Answer: 600 mL

Explanation:

Given that;

M₁ = 5.85 m

M₂ = 1.95 m

V₁ = 200 mL

V₂ = ?

Now from the dilution law;

M₁V₁ = M₂V₂

so we substitute

5.85 × 200 = 1.95 × V₂

1170 = 1.95V₂

V₂ = 1170 / 1.95

V₂ = 600 mL

Therefore final volume is 600 mL

8 0
3 years ago
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