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Stels [109]
3 years ago
9

Why do scientists follow a set oder of steps when carrying out a scientific investigation?

Chemistry
1 answer:
vazorg [7]3 years ago
5 0

Answer:

If an orderly set of steps is followed, the observations and results are more reliable. The experiment can be conducted again using the sample procedure.

Explanation:

Hope it helps :)

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olga2289 [7]
Answer : To calculate the standard molar enthalpy of complete combustion of liquid ethanol can be done by using the formula given below;

C_{2}  H_{5}OH + 3O_{2} ----\ \textgreater \   2CO_{2}  + 3 H_{2}O

Now, the enthalpies of the elements in their standard state is zero always. 

So the H_{reaction} =  H_{products}  - H_{reactants}

Here we can avoid the heat of enthalpy of oxygen,carbon dioxide and water as they exists in their standard states.

So the H_{reaction} = H_{ C_{2}H_{5}OH}
6 0
3 years ago
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Rudik [331]

Answer:

The rate of evaporation is directly proportional to Temperature because as the temperature increases, the energy of the particles increases. Due to increases in energy, particles start to break intermolecular bonding and evaporates.

8 0
3 years ago
Hi GUYS PLEASE HELP ME YOU KNOW I HELP YOU WHEN YOU NEED IT MOST SO HERE IT GOES WHICH SEQUENCE REPRESENTS THE ORDER OF DEVELOPM
exis [7]
To answer your question, the answer is number 1. hope this help
6 0
3 years ago
Americium-241 is an alpha emitter used in household smoke detectors and K-40 is a positron emitter used to date rock samples. Th
VMariaS [17]

Answer:

Np-237, Ar-40.

Explanation:

Alpha particle is positively charged particle having a mass of 4 unit. Hence,when alpha is  removed from any isotope it produces a element having  mass 4 units less than original isotope that was before emission. Americium 241 isotopes used in the smoke detector which emit an alpha particle to produce neptunium-237.

Potassium-40 emits positron which is having negative charge to lower one proton and increase one neutron number in the particle and in such way it will produce ^{40}Ar_{18} not  ^{40}Ca_{20}

4 0
3 years ago
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