The answer
the speed of <span>the train traveling in kilometers per minute can be found by using the following method:
v = </span><span>30 miles per hour
</span><span>1 mile = 1.6 kilometers
just do the calculus by changing miles to kilometers
</span>1 mile = 1.6 kilometers, so 30 miles= 1.6 km x 30 = 48 km
so the speed of the train is
v=30 miles / hour = 48km / h = 48km / 60 mn = 0.8 km/ mn
the answer is
<span>C- 0.8 km/min</span>
Answer:
0.674M of NaOH
Explanation:
Molarity, M, is an unit of concentration defined as ratio between moles of solute and liters of solution.
In the problem, sodium hydroxide (NaOH) is the solute (Less quantity) that is dissolved in 3.77 liters of water, probably.
Thus, molarity of 2.54 mol NaOH in 3.77L is:
2.54mol NaOH / 3.77L = <em>0.674M of NaOH</em>
Answer:
The average speed per hour is 50 miles
Explanation:
6x 50= 300
<span>a. Nitrogen
b. Neon
</span><span>
Remember ionization increases from bottom to top (Fr to H) and from left to right (H to He) </span>
Answer:
3.6g
Explanation:
2 moles of water gives 1 mole of oxygen
2(h2o)=1(o2)
2(molar mass of h2o)=1(molar mass of oxygen molecule)
2(18)=1(16×2)
36=32
3.6=x
cross multiply
3.6×32=36× x
115.2=36x
x=115.2÷36
x=3.6g