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strojnjashka [21]
3 years ago
7

PLEASE HELPPPPPPPPPPPPPP

Chemistry
1 answer:
docker41 [41]3 years ago
4 0

Answer:

Please take  this hepful hint :

F = m * a

6.2 = 2.3 * a

a = 2.7 m/s^2

Explanation:

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What is combination reaction and also define it's properties?​
tigry1 [53]

Answer:

This is when two or more compounds or elements react to form a single product.

In these reactions new substances are produced or synthesized.

in simple terms the elements or compounds are converted to something new.

5 0
3 years ago
Read 2 more answers
What is the temperature of 1.2 moles of helium gas at 2.57 ATM if it occupies 15.5L of volume
agasfer [191]
We will assume helium to behave as an ideal gas and apply the ideal gas law:
PV = nRT
For pressure measured in atmospheres and volume measured in liters, the value of the molar gas constant is 0.082. Therefore:
T = PV / nR
T = (2.57 x 15.5) / (1.2 x 0.082)
T = 404.8 Kelvin
8 0
3 years ago
Can you name these for me
Mashcka [7]

Answer:

1. E. mitochondrion

2. C. chloroplasts

3. G. vacuole

4. A. cell membrane

5. B. cell wall

6. D.cytoplasm

7. F. Nucleus

8. cytoplasm

9. cell membrane

10. chloroplast

11. mitochondrion

12. nucleus

13. cell wall

14. vacuole

Explanation:

- Be familiar which each term.

- Look up diagram to understand image.

- Hope that helped! Please let me know if you need further explanation on each word.

4 0
3 years ago
Question 9
Evgesh-ka [11]

Answer:

0.382 atm

Explanation:

In order to find the pressure, you need to know the moles of carbon dioxide (CO₂) gas. This can be found by multiplying the mass (g) by the molar mass (g/mol) of CO₂. It is important to arrange the conversion in a way that allows for the cancellation of units.

Molar Mass (CO₂): 12.011 g/mol + 2(15.998 g/mol)

Molar Mass (CO₂): 44.007 g/mol

15 grams CO₂               1 mole
----------------------  x  ------------------------  =  0.341 moles CO₂
                                44.007 grams

To find the pressure, you need to use the Ideal Gas Law equation.

PV = nRT

In this equation,

-----> P = pressure (atm)

-----> V = volume (L)

-----> n = moles

-----> R = Ideal Gas Constant (0.08206 atm*L/mol*K)

-----> T = temperature (K)

After you convert Celsius to Kelvin, you can plug the given and calculated values into the equation and simplify to find the pressure.

P = ? atm                              R = 0.08206 atm*L/mol*K

V = 20 L                               T = 0 °C + 273.15 = 273.15 K

n = 0.341 moles

PV = nRT

P(20 L) = (0.341 moles)(0.08206 atm*L/mol*K)(273.15 K)

P(20 L) = 7.64016

P = 0.382 atm

7 0
2 years ago
What type of isomers are ch3ch2och3 and ch3ch2ch2oh?
N76 [4]
Functional isomers
because the first one is an ether and the other one an alcohol
4 0
3 years ago
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