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Alexxx [7]
2 years ago
14

Can u please help me name which one it is

Chemistry
2 answers:
ludmilkaskok [199]2 years ago
5 0

Answer:

I think it is C

Explanation:

Feliz [49]2 years ago
3 0
I think it’s D.
sorry if it’s wrong
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Quest
Sever21 [200]

Answer:

D. An acid accepts an electron pair from a base.

Explanation:

acorroding to lewis

  • an acid is a compound which accepts a pair of electrons from base .

  • a base is a compound which donates a pair of electron to acid .
8 0
3 years ago
Read 2 more answers
How many grams of ice at -13 deg C must be added to 711 grams of water that is initially at a temperature of 87 deg C to produce
Basile [38]

Answer:

The answer to your question is m = 4.7 kg

Explanation:

Data

Ice                                   Water

mass = ?                          mass = 711 g

T₁ = -13°C                         T₁ = 87°C

T₂ = 10°C                         T₂ = 10°C

Ch = 2090 J/kg°K          Cw = 4180 J/kg°K

Process

1.- Convert temperature to kelvin

T₁ = 273 + (-13) = 260°K

T₁ water = 87 + 273 = 360 °K

T₂ = 10 + 273 = 283°K

2.- Write the equation of interchange of heat

                 - Heat lost = Heat absorbed

               - mwCw(T₂ - T₁) = miCi(T₂ - T₁)

-Substitution

              - 0.711(4180)(10 - 87) = m(2090)(10 - (-13))

- Simplification

                            228842.46 = 48070m

                            m = 228842.46/48070

-Result

                            m = 4.7 kg

4 0
3 years ago
What is the total number of moles of atoms in one mole of (NH4)2SO4? 1. 10 2. 11 3. 14 4. 15
Neporo4naja [7]

Answer:

4. 15

Explanation:

The given formula is:- (NH_4)_2SO_4

1 mole of the salt contains 2 moles of nitrogen atom, 8 moles of hydrogen, 1 mole of sulfur and 4 moles of oxygen atom as can be seen from the formula.

Thus,

1 mole of salt contains total of 15 moles of the atoms which constitute the salt.

<u>Hence, 4. is the answer.</u>

5 0
3 years ago
Read 2 more answers
Advantages for building on the green hill
Minchanka [31]
I think that building on a green hill
6 0
3 years ago
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An astronomer studying planets outside our solar system has analyzed the atmospheres of four planets. Which of these planets’ at
Nata [24]

Answer: Planet A: 76% Nitrogen, 23% Oxygen, 1% Other

Explanation: Hope this helps!

3 0
3 years ago
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