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andriy [413]
2 years ago
9

Topics on how humans use energy pls can somebody give me a few..

Chemistry
1 answer:
kupik [55]2 years ago
5 0

Answer: Humans use energy to carry out their daily activities, like moving around, working, running etc.

Explanation:

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Write the chemical formula for the ionic compound formed by lithium and fluorine.
aev [14]

Answer:

→<u> </u><u>LiF</u>

Explanation:

{ \rm{2Li _{(s)}  + F _{2(g)} \dashrightarrow \: 2LiF _{(s)}  }}

3 0
3 years ago
A chemical bond joins atoms or electrons? together in a molecule
Schach [20]
Electrons basically ARE the chemical bond.  The atoms are joined together by the bonds.
4 0
3 years ago
El siguiente bloque de masa 2 kg acelera a razón<br>de 4 m/s, calcula el módulo de la fuerza F​
choli [55]

Answer:

8 Newton

Explanation:

f = m × a

2 × 4 = 8 Newton

8 0
3 years ago
Calculate the volume of 12.0 g of helium at 100°c and 1.2 atm
hodyreva [135]

Volume = nRT/P

n = number of particles (moles)

R = universal gas constant (0.0821)

T = temperature (Kelvin)

P = pressure (atm)

(Assuming you have 1 mole of Helium in a chemical reaction) We would need to convert grams to moles: 12.0g He x 1 mol He/4 molar mass of He = 3 mol He

Convert Celsius to Kelvin: 100*C + 273.15 = 373.15 K

Now we can set up the equation for volume: (3mol)(0.0821)(373.15)/1.2atm = 76.6 L of Helium gas

8 0
3 years ago
What is the answer for this question?
andrew11 [14]

Answer:

See explanation, some might be graded as wrong if it's an automatic grading system but most

Explanation:

1. lose
2. valence
3. noble (Atoms don't actually always do this, but since the word gas is after the blank, it is the only option)

4. 4
5. have
6. 10

5 and 6 are a little ambiguous and could have many answers  

5 0
1 year ago
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