Answer:
894 deg K
Explanation:
The computation is shown below:
Given that
V1 denotes the initial volume of gas = 2.00 L
T1 denotes the initial temperature of gas = 25 + 273 = 298 K
V2 denotes the final volume of gas = 6.00 L
T2 = ?
Based on the above information
Here we assume that the pressure is remain constant,
So,
V1 ÷ T1 = V2 ÷ T2
T2 = T1 × V2 ÷ V1
= (298)(6) ÷ (2)
= 894 deg K
It forms a white powder
Explanation:
Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction.
Answer:
- The dosage is 0.0906 g/kg
- The child should take 8.5 tablets to receive the same dosage
Explanation:
First we convert 134 lb into kg:
- 134 lb * = 60.702 kg
Then we<u> convert 275 mg into g</u>:
- 275 mg * = 0.275 g
Now we can<u> calculate the dosage in grams per kilogram of body weight,</u> keeping in mind that two tablets are consumed:
- (0.275 g) * 2 / 60.702 kg = 0.0906 g/kg
As for the<em> </em><em>second part</em>, first we <u>convert 31 lb into kg</u>:
- 31 lb * = 14.043 kg
Now we <u>calculate how many penicillin grams should be consumed</u>:
- 14.043 kg * 0.0906 g/kg = 1.27 g
We convert 1.27 g of penicilin into mg:
Finally we <u>calculate how many 150 mg tables should be taken</u>:
- 1270 mg / 150 mg = 8.5 tablets
Answer:
Li and H
Explanation:
2Li(s)+2H2O(i)→2LiOH(aq)+H2(g) is full balanced