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frez [133]
3 years ago
10

1. Which one of the following is not a step used for balancing chemical equations? A. Always change subscripts to balance an equ

ation B. Write the chemical equation using formulas and symbols C. Count the atoms in each substance in the reactants and products D. Choose coefficients that will balance the equation
Chemistry
1 answer:
zysi [14]3 years ago
3 0

Answer:

B. Write the chemical equation using formulas and symbols

Explanation:

When balancing a chemical equation, the formulas and symbols of the reactants and products are already given and it is not necessary to modify them.

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Dmitry_Shevchenko [17]
Answer is: C₄H₈.
C₄H₈ is hydrocarbon, organic compound<span> consisting only of carbon and hydrogen.
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3 0
3 years ago
Write the beta decay equation for the following isotope: 15/6 C?
vesna_86 [32]

Answer:

\rm _{6}^{15}\text{C} \longrightarrow \,  _{-1}^{0}\text{e} + \,  _{7}^{15}\text{N}

Explanation:

The unbalanced nuclear equation is

\rm _{6}^{15}\text{C} \longrightarrow \,  _{-1}^{0}\text{e} + \, ?

Let's write the question mark as a nuclear symbol.

\rm _{6}^{15}\text{C} \longrightarrow \,  _{-1}^{0}\text{e} + \,  _{Z}^{A}\text{X}

The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.  

Then

15 =  0 + A, so A = 15 -   0 = 15, and

 6 = -1 + Z, so Z  =   6 + 1 =    7

Then, your nuclear equation becomes

\rm _{6}^{15}\text{C} \longrightarrow \,  _{-1}^{0}\text{e} + \,  _{7}^{15}\text{X}

Element 7 is nitrogen, so the balanced nuclear equation is

\rm _{6}^{15}\text{C} \longrightarrow \,  _{-1}^{0}\text{e} + \,  _{7}^{15}\text{N}

8 0
4 years ago
As methane burns, it reacts with oxygen and forms carbon dioxide and water. The balanced chemical equation below models this che
Elan Coil [88]

Explanation:

hope this helps please like and mark as brainliest

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3 years ago
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lubasha [3.4K]
A 1
B 1
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All series circuits have only 1 path to go from. Parallel circuits would have more than one.  
8 0
4 years ago
According to Frank, what is the “10 second rule"?
Lelechka [254]

Answer:

The first option, aka Opick it up off the gound within 10 seconds, and it's o.k. to eat

Explanation:

The 10 second rule is a rule when you drop foods, but if you get it off the floor under 10 seconds, you can eat it.

Did you know that food picked up under 10 seconds and after 10 seconds has almost the same number of bacterias? The 10 second rule is basically worthless.

4 0
3 years ago
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