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maks197457 [2]
3 years ago
13

Which statement about the mass of an electron is correct? A The mass of an electron is equal to the mass of the proton. B The ma

ss of an electron is less than the mass of the proton. с The mass of an electron is equal to the mass of a neutron. D The mass of an electron is greater than the mass of a neutron.​
Chemistry
1 answer:
geniusboy [140]3 years ago
8 0

Answer:

B

Explanation:

because mass of an electron is 1/2000.

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Balance the following equation: + NH,CIO, + Al(SO2), → Al(CIO), + (NH)2SO4​
mote1985 [20]

Answer:

This apparently cant be balanced. i checked online

but im not 100%

Explanation:

7 0
3 years ago
A coffee cup has a heat capacity of 62.6 - If the coffee cup's temperature increases by 1.20°C, how much heat has it
zhannawk [14.2K]

Answer:

75.12 J

Explanation:

Applying,

Q = CΔT................ equation 1

Where Q = amount of heat, C = Heat capacity, ΔT = temperature rise.

From the question,

Given: C = 62.6 J/K, ΔT = 1.20°C

Substitute these values into equation 1

Q = 62.6(1.20)

Q = 75.12 J

Hence the amount of heat it absorbed is 75.12 J

5 0
3 years ago
Each of the following dihaloalkanes gives an N-(haloalkyl)phthalimidc on reaction with one equivalent of the potassium salt of p
Alexeev081 [22]

Answer:

Use the following answers for questions 1 - 2. (1984 - #8 & 9)

(A) A network solid with covalent bonding

(B) A molecular solid with zero dipole moment

(C) A molecular solid with hydrogen bonding

(D) An ionic solid

(E) A metallic

4 0
4 years ago
If the density of an object is 60 g/cm 3 and its mass 20 grams what is its coulume in cm 3
Licemer1 [7]
3 cubic centimeters, Volume= density/ mass





7 0
4 years ago
Match the action to the effect on the equilibrium position for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g). (3 points)
AleksandrR [38]

Answer:

1. Adding hydrogen gas, b. shift to the right
2. Adding a catalyst, c. No effect
3. Decreasing the pressure, a. shift to the left

Explanation:

Hydrogen gas can be rewritten as H2. Whenever you add something to an equilibrium expression, it will shift to whichever side does not have this. So, since the reactant side has 3 moles of H2, adding more H2 to the reaction will shift to the products side, since there is no H2 there.


Adding a catalyst has no effect on equilibrium reactions.

When decreasing the pressure, equilibrium will shift to the side with the greater number of moles of gas. In this case, there are 4 moles of gas on the left, and 2 on the right, so it would shift to the left.

5 0
2 years ago
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