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2 years ago

Is anybody good in Chemistry that can help me with this?

Chemistry

1 answer:

sesenic [268]2 years ago

5 0

Answer:

just replace the 9 mole with 3.68 g of Al .

I think it will help you.

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Identify the product of radioactive decay and classify the given nuclear reactions accordingly.

marta [7]

Answer: a) $_{88}^{234}\textrm{Ra}\rightarrow _{86}^{230}\textrm{Ra}+_{2}^{4}\textrm{He}$

b) $_{92}^{238}\textrm{Ra}\rightarrow _{93}^{238}\textrm{Np}+_{-1}^{0}{\beta}$

c) $_{92}^{238}\textrm{Ra}\rightarrow _{93}^{238}\textrm{Np}+_{-1}^{0}{\beta}$

d) $_{6}^{14}\textrm{C}\rightarrow _{7}^{14}\textrm{N}+_{-1}^{0}{\beta}$

e) $_{12}^{24}\textrm{Mg}\rightarrow _{12}^{24}\textrm{Mg}+_{0}^{0}{\gamma}$

Explanation:

A balanced nuclear equation is one in which the atomic number and mass number remains same on both sides of the equation i.e the number of protons and neutrons remain same.

General representation of an element is given as:

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

a) $_{88}^{234}\textrm{Ra}\rightarrow _{86}^{230}\textrm{Ra}+_{2}^{4}\textrm{He}$

b) $_{92}^{238}\textrm{U}\rightarrow _{93}^{238}\textrm{Np}+_{-1}^{0}{\beta}$

c) $_{94}^{242}\textrm{Pu}\rightarrow _{92}^{238}\textrm{Ra}+_{2}^{4}\textrm{He}$

d) $_{6}^{14}\textrm{C}\rightarrow _{7}^{14}\textrm{N}+_{-1}^{0}{\beta}$

e) $_{12}^{24}\textrm{Mg}\rightarrow _{12}^{24}\textrm{Mg}+_{0}^{0}{\gamma}$

3 0

3 years ago

Do your body cells always use cellular respiration to break down<br> glucose? Explain your answer.

Goryan [66]

Answer:

Yes cellular respiration is the only way to break down glucose. Cellular respiration takes place by the cell using oxygen to break down glucose.

7 0

2 years ago

Someone pls help me I will mark you as brain

Reptile [31]

3rd one I think it is.

5 0

2 years ago

What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?

AlexFokin [52]

Using the ideal gas law: PV=nRT
P is pressure; V is volume; n is the amount in moles; R=0.082; T is temperature in K.

(4.68)*(4.95)=(16.45)*(0.0821)*T
Solve for T.
T=17.15

4 0

3 years ago

Carbon cycle is returned to the atmosphere primarily by the respiration of consumer.

natima [27]

Carbon is produced by producers, consumed by consumers, released by consumers, and returned to the air and soil by decomposers.

7 0

3 years ago

Is anybody good in Chemistry that can help me with this?​

Is anybody good in Chemistry that can help me with this?