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antoniya [11.8K]
3 years ago
13

Because atoms are electrically neutral, the number of protons and _____ in an atom are equal.

Chemistry
1 answer:
Misha Larkins [42]3 years ago
5 0

Answer: I believe that it's electrons please let me know if it was right or what it was!

Hope this helps!!! Good luck!!! ;)

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The decomposition of N_2O_5(g) following 1st order kinetics. N_2O_5(g) to N_2O_4(g) + ½ O_2(g) If 2.56 mg of N_2O_5 is initially
Crank

Answer: The rate constant is 0.334s^{-1}

Explanation ;

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = ?

t = age of sample  = 4.26 min

a =  initial amount of the reactant  = 2.56 mg

a - x = amount left after decay process  = 2.50 mg

Now put all the given values in above equation to calculate the rate constant ,we get

4.26=\frac{2.303}{k}\log\frac{2.56}{2.50}

k=\frac{2.303}{4.26}\log\frac{2.56}{2.50}

k=5.57\times 10^{-3}min^{-1}=5.57\times 10^{-3}\times 60s^{-1}=0.334s^{-1}

Thus rate constant is [tex]0.334s^{-1}

4 0
3 years ago
ASAP PLSSS!!!! A container holds 13.8 grams of lithium metal. How many moles is this?
Yanka [14]

Answer:

3) 6.94 moles Li

Explanation:

I'm not completely sure but I think this is the right answer

6 0
3 years ago
In an experiment, 107.9 grams of H2SO, is produced when 196.2 grams
Ipatiy [6.2K]

Answer:

54.99% yield

Explanation:

percent yield is just the amount you obtained over the amount expected times 100%.

(experimental value/theoretical value) x 100%

= (107.9 g/196.2 g) x 100%

=54.99% yield

5 0
3 years ago
Explain in terms of bonding why the hydrocarbon 2-methylpropane is saturated
lakkis [162]

Answer:

because no 2 or 3 bond so it is saturated

7 0
3 years ago
Which unstable element is used to determine the age of volcanic rock?
77julia77 [94]

<em><u>Answer:</u></em>

Potassium.

<u><em>Explanation:</em></u>

Therefore, the answer is Potassium. You might think, that because we were talking about Argon as well, the answer is both of them, but no. Everything starts with Potassium but it decays into Argon during the process.

6 0
3 years ago
Read 2 more answers
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