Question: dot structure for magnesium
Answer: Mg :
Answer:
The reactants Cu(SO)₄ and Na₂(NO)₃ are reacting to produce Na₂(SO)₄ and Cu(NO)₃
Explanation:
When we describe a reaction by a chemical reaction, we put the reactants in on the side and the other side the products. A simple arrow (→) represents an irreversible reaction, the double arrow (⇄) represents a reversible reaction (the products are forming the reactants too).
So, for the reaction given, it's irreversible, and the reactants Cu(SO)₄ and Na₂(NO)₃ are reacting to produce Na₂(SO)₄ and Cu(NO)₃.
Answer: The empirical formula of vitamin C is
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
The molecular formula of Vitamin C is .
The simplest whole number ratio will be 3: 4: 3 , and thus empirical formula will be .
For a Forty miles above the earth's surface, the temperature at 250k and the pressure at only 0.20 torr, the density of air at this altitude is mathematically given as
d=3.732*10{-4}g/l
<h3>What is the density of air at this altitude?</h3>
Generally, the equation for the ideal gas is mathematically given as
PV=(m/mw)RT
Therefore
d=m/v
d=26,664*20/83.14*250
d=0.37152
d=3.732*10{-4}g/l
In conclusion, the density
d=3.732*10{-4}g/l
Read more about Temperature
brainly.com/question/13439286
Basically this question is telling you to convert units of distance and units of volume. The SI unit of measurement for distance is meters, while the SI unit for volume is liters. In order to go through the conversion, you have to know the equivalence of miles to meters, and gallons to liters. One gallon is equal to 3.785 liters, and one mile is equal to 1609.34 meters. Consequently, in the metric system, 1,000 meters is equal to 1 kilometer.
We make use of these conversions through dimensional analysis. This approach is when you cancel out like units if they appear both on the numerator and the denominator side. The solution is as follows:
14 km/L * (1000 m/1 km) * (1 mile/1609.34 m) * (3.785 L/1 gal)
Cancel out kilometers, meters, and liters. The final answer is in kilometers per liter. The complete solution, is therefore, 0.0329 miles/gal.