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dmitriy555 [2]
2 years ago
13

Which candle burned the longest time why

Chemistry
2 answers:
Kamila [148]2 years ago
7 0

Answer:

The one that burned longer because it burned longer

Explanation:

Art [367]2 years ago
5 0
Poured beeswax candles will burn the longest
Why: slowest due to the hardness of the wax and the high temperature needed to melt the wax
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A 90 lb person is prescribed a drug in the amount of 50mg/kg body per day to be delivered in 2 doses per day. Each tablet contai
geniusboy [140]

Answer:

4 tabletes/dose

Explanation:

mass person = (90 Lb)×(Kg/2.20462 Lb) = 40.823 Kg body

amount of medicine = 50 mg/Kg body.day

frecuency = 2 dose/day

⇒ amount of medicine/day =  (50 mg/kg body.day)×(40.823 Kg body) = 2041.168 mg/day

⇒ mg medicine/dose = (20141.168 mg/day)×(day/ 2 dose) = 1020.584 mg medicine/dose

∴ mg medicine/tablet = 250 mg medicine/tablet

⇒ # tabletes/dose = (1020.584 mg medicine/dose)×(tablet/250 mg medicine) = 4.082 tabletes/dose

⇒ # tabletes/dose ≅ 4 tabletes/dose

7 0
3 years ago
Use the chart to determine which pair of atoms has the greatest difference in electronegativity.
Alekssandra [29.7K]
Here, most electronegative element = Fluorine (4)
Least electronegative = Potassium (0.82)

In short, Fluorine(F) & Potassium (K) have greatest difference in electronegativity of about 3.18

Hope this helps!
5 0
2 years ago
Read 2 more answers
Where does heat come from
Temka [501]

Answer:

All matter contains heat energy. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.

Explanation:

4 0
3 years ago
Write the formulas for the following compounds :
Vanyuwa [196]
Sodium phosphate = Na₃PO₄

phosphorus triiodide = PI3

hope this helps. make brainliest please!
6 0
2 years ago
Read 2 more answers
Liquid nitrogen has a density of 0.808 g/mL and boils at 77 K. Researchers often purchase liquid nitrogen in insulated 185 L tan
Serga [27]

Answer:

37.14 %

Explanation:

Using the equation, mass, M = D1 * V1

= D2 * V2

Where,

D1 = density of the liquid Nitrogen

D2 = density of gaseous Nitrogen

V1 = volume of the liquid Nitrogen

V2 = volume of the gaseous Nitrogen

Calculating V2,

0.808 * 185 = 1.15 * V2

Volume of Nitrogen after expansion = 129.98 m3.

Volume = L * b * h

= 10 * 10 * 3.5

Volume of the room = 350 m3.

Fraction of air = volume of Nitrogen after expansion/volume of the room * 100

= 129.98/350 *100

= 37.14 %

5 0
3 years ago
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