Answer:
={6,7,8,9,10}.
Step-by-step explanation:
We have an empty set: M={} and the set N={6,7,8,9,10}.
The union of these two sets are elements in M or N or both.
Since the M is a null set, 
Therefore:
={6,7,8,9,10}.
The union for the given sets is {6,7,8,9,10}.
Answer:
2NaBr + CaF2 --> 2NaF + CaBr2 gives you:
2Na 2Na
2Br 2F
1Ca 1Ca
2F 2Br
This is balanced.
Step-by-step explanation:
2,1,2,1.
In a balanced chemical equation, the number of particular atoms on the right side of the equation is equal to the number of that atom on the left side of the equation.
As in the left side of the equation, there are 2 F atom and 1 Br. While on the right side there are 1 F and 2 Br. S for the balancing, we will put coefficient to the equation.
And the equation will be:
2NaBr + CaF2 → 2NaF + CaBr2
Answer:
Step-by-step explanation: Plug -4 in for each "y" in the equation. Then solve: -4 squared is 16, 5 times -4 is -20, so you have 16-20+7 which equals 3.
Answer:
the answer is 1/y^3
Step-by-step explanation:
when ever there is an negative exponent you flip it and put the base and exponent in a fraction under 1 hope this helps