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Dima020 [189]
3 years ago
8

What part of the atom is involved in a chemical reaction?

Chemistry
1 answer:
Butoxors [25]3 years ago
8 0
Chemical reactions are a result in changes in bonding, in a chemical reaction atoms, switch out bonding partners.        hope this helps!!
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Which statement describes the relative masses of two different particles?
garik1379 [7]
The answer is 2. Beta particle is high energy electrons which is the same mass as positron with little mass. Alpha particle consists of 2 neutrons and 2 protons. Neutrons and protons have almost same mass which is much larger than electrons.
3 0
3 years ago
0.0625 mol of an ideal gas is contained within a 1.0000 Lvolume container. Its pressure is 142,868 Pa and temperature is X K . W
aliya0001 [1]

<u>Answer:</u> The temperature of the ideal gas is 2.75\times 10^2K

<u>Explanation:</u>

To calculate the temperature, we use the equation given by ideal gas equation:

PV=nRT

where,

P = Pressure of the gas = 142,868 Pa = 142.868 kPa    (Conversion factor: 1 kPa = 1000 Pa)  

V = Volume of gas = 1.0000 L

n = number of moles of ideal gas = 0.0625 moles

R = Gas constant = 8.31\text{L kPa }mol^{-1}K^{-1}

T = temperature of the gas = ?

Putting values in above equation, we get:

142.868kPa\times 1.0000=0.0625mol\times 8.31\text{L kPa }mol^{-1}K^{-1}\times T\\\\T=275K=2.75\times 10^2K

Hence, the temperature of the ideal gas is 2.75\times 10^2K

8 0
4 years ago
Mass of 2.88x10^-4 mol of ascorbic acid
Lady bird [3.3K]
Molar mass C₆H₈O₆ = 176.12 g/mol

1 mole ------------------ 176.12 g
2.88x10⁻⁴ mole -------  ?

mass = 2.88x10⁻⁴ * 176.12 / 1

mass ≈ 0.05072 g

hope this helps!
8 0
3 years ago
Is elemental copper a pure substance
aivan3 [116]

Answer:

yes

Explanation:

copper is a pure substance in any form

8 0
3 years ago
What is a host? Give two examples of ways humans serve as hosts for infectious diseases.
dlinn [17]

Answer:

the direct transfer of bacteria,viruses or other germs for one person to another.

Explanation:

sometimes this happens an individual with the bacterium or virus touches.kisses.or cough or sneeze on someone who isn't infected

6 0
3 years ago
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