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telo118 [61]
3 years ago
12

URGENT PLEASE ANSWER

Chemistry
1 answer:
Alona [7]3 years ago
5 0

Answer:

1. nucleus

2.14

3.14

4.3

5. 4+ or 4-

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Is Kool-Aid (only the powder) and sugar a mixture?
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A factory produces 5,000,000 Ibuprofen tablets to fill an order. The bottle chosen for packaging holds 250 tablets. If the activ
vivado [14]

Answer:2,204 pounds Ibuprofen must the factory use to fill this order

Explanation:

Amount of Ibuprofen in 1 tablet = 200 mg

Amount of Ibuprofen in 5,000,000 tablet = 5,000,000\times 200mg=10^9 mg

1 g = 1000 mg

Grams of Ibuprofen = 10^{6} g

1 g = 0.002204 pounds

Pounds of Ibuprofen required to fulfill the order:

10^6\times 0.002204 pounds=2,204 pounds

2,204 pounds Ibuprofen must the factory use to fill this order

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3 years ago
6.3 kJ of energy is required to increase the temperature of some water from 60 °C to 75 °C. The specific heat capacity of water
Andreas93 [3]

Answer:

Mass of the water = 0.1kg is 100g

Explanation:

Mathematically;

Quantity of heat = mass of water * specific heat capacity * temperature change

From the question, we identify the following;

Quantity of heat = 6.3 KJ

1 KJ = 1000 J, so 6.3 KJ = 6.3 * 1000 = 6300 J

Mass of water = ?

Specific heat capacity = 4200

Temperature change is the difference between the final and initial temperature. = 75-60 = 15

6300 = m * 15 * 4200

63 = m * 15 * 42

63 = 630 m

m = 63/630

m = 0.1 kg

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