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Arturiano [62]
3 years ago
11

Scientists group similar organisms together through a process called …..

Chemistry
2 answers:
Bond [772]3 years ago
4 0

Answer:

plz i need to ask another question i hope u understand

Explanation:

Ksenya-84 [330]3 years ago
4 0

Answer:

i think it's Organization

Explanation:

The reason being is because they obviously said 'humans' so that's why i think it is Organization

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kilograms represented by the mass defect for thorium -234=3.09x 10-27 kg what is the nuclear binding energy for thorium -234
Dafna1 [17]

Mass defect and binding energy are related as

ΔE = Δmc^2

Where

ΔE = binding energy

Δm = mass defect

c = speed of light

given

mass defect = 3.09x 10-27 kg

We know that speed of light = 3 X 10^8 m /s

ΔE = 3.09x 10-27 kg  (3 X 10^8 m /s)^2 = 2.781 X 10^-10 J / Kg

.

.

4 0
3 years ago
Read 2 more answers
Rapport de laboratoire
Umnica [9.8K]

Answer:

Un rapport de laboratoire permet à une personne qui n'a pas réalisé l'expérience de comprendre le but du laboratoire, la procédure à suivre pour atteindre cet objectif ainsi que les résultats obtenus.

6 0
2 years ago
Sulfur has an atomic number of 16. sulfur will form chemical bonds in a similar manner as __________. sulfur has an atomic numbe
11Alexandr11 [23.1K]

Answer:- Oxygen

Explanations:- Elements of same group(family) forms the bonds in almost similar manner. Oxygen and sulfur are the elements of same group and have equal number of valence electrons. So, they form chemical bonds in similar manner as each one needs two more electrons to complete it's octet.

Hydrogen has one valence electron and so it forms only a one single bond.

Nitrogen has 5 valence electrons and it needs three more electrons to complete it's octet and for this it forms three single bonds or one single and one double bond.

Carbon has 4 valence electrons and needs 4 more electrons to complete it's octet. The number of bonds are different for hydrogen, nitrogen and carbon as compared to sulfur.

So, the only and only correct choice is oxygen.

8 0
3 years ago
Read 2 more answers
What will the volume of 254 cm3 of gas be at STP if its original temperature is 72.6° C?
juin [17]

Answer:

200.6cm³

Explanation:

Using Charles law equation as follows:

V1/T1 = V2/T2

Where;

V1 = initial volume (cm³)

V2 = final volume (cm³)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the question;

initial volume (V1) = 254cm³

final volume (V2) = ?

Initial temperature (T1) = 72.6°C = 72.6 + 273 = 345.6K

Final temperature (T2) = 273K

V1/T1 = V2/T2

254/345.6 = V2/273

Cross multiply

345.6 × V2 = 273 × 254

345.6V2 = 69342

V2 = 69342 ÷ 345.6

V2 = 200.6cm³

3 0
3 years ago
Water does not appear in the equilibrium expression because it is a pure liquid. However, the addition of water to the equilibri
stealth61 [152]

Answer:

The correct answer is: <em>The addition of water will change the concentration of the substances in equilibrium.</em>

Explanation:

For chemical reactions, the equilibrium constant is defined as the ratio between the concentration of products and reactants. In this expression pure substances should not be written, like pure liquids and gases. Since water is a pure liquid should not appear in the equilibrium. However, water is the solvent of all the solutes or substances in the reaction, thus the addition of water will make all the substances to be diluted. Also, because of the Le Châtelier principle the equilibrium should be re-establish and the concentrations whitten in the equilibrium constant should change too.

3 0
3 years ago
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