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Komok [63]
2 years ago
11

How would I find the number of protons, neutrons and electrons when I only have the atomic number and atom (assignment says assu

me the net charge is 0)
Chemistry
1 answer:
coldgirl [10]2 years ago
8 0

Explanation:

Atomic number , protons and electrons have the same value / their value is same .

But for the neutron there is no specific technique. You have to remember the neutrons of every element

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What is the best way to measure the age of the Earth and why? Explain how scientists do this.
UkoKoshka [18]

Explanation:

the best way to understand the age of the earth is to estimate the age of matirials in it

3 0
3 years ago
The incredible catalytic power of enzymes can perhaps best be appreciated by imagining how challenging life would be without jus
ioda

Answer:

t = 7.58 * 10¹⁹ seconds

Explanation:

First order rate constant is given as,

k =  (2.303 /t) log  [A₀] /[Aₙ]

where  [A₀]  is the initial concentraion of the reactant; [Aₙ] is the concentration of the reactant at time, <em>t</em>

[A₀]  = 615 calories;

[Aₙ] = 615 - 480 = 135 calories

k = 2.00 * 10⁻²⁰ sec⁻¹

substituting the values in the equation of the rate constant;

2.00 * 10⁻²⁰ sec⁻¹ = (2.303/t) log (615/135)

(2.00 * 10⁻²⁰ sec⁻¹) / log (615/135) = (2.303/t)

t = 2.303 / 3.037 * 10⁻²⁰

t = 7.58 * 10¹⁹ seconds

8 0
2 years ago
What is the mass of water that results from combining 2.0g of hydrogen with 16.0g of oxygen?
makkiz [27]
8.0g's of water is your answer
4 0
2 years ago
Read 2 more answers
Help please i’ll give extra points
joja [24]

Answer:

okay no problem

I will give

7 0
3 years ago
Advantages and disadvantages of solar power
Andrews [41]

Answer:

Advantakes= it is a renewable source, you can but it anywhere with sunlight

disatvantage= it cost a lot to place/replace, it uses a lot of different materials

5 0
2 years ago
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