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3 years ago

2. What charge does an electron have? a. Positive b. Negative c. Neutral d. No charge

Chemistry

1 answer:

SashulF [63]3 years ago

7 0

The answer is negative, since neutron is neutral and Protons have Positive.

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Which one is a Synthesis reaction?

sveta [45]

Answer:

the second one is synthesis reaction

3 0

3 years ago

What is the temperature of 0.5 moles of water vapor that occupies 120 dm3 and applies a pressure of 15,000 Pa to its container?

AleksandrR [38]

Answer:

The answer is C. 7.52 K

Explanation:

hope it helps

6 0

3 years ago

How can atoms be neutral if they contain charged particles?

rewona [7]

Stability of atoms is determined by neutron:proton ratio. This n/p ratio is 1:1 for elements below atomic number 20. Hope this helps.

4 0

4 years ago

PLEASE HELP :"( DUE NOW!!

Citrus2011 [14]

Answer:

The correct answer is

[CH4][H2O]/[CO][H2]3

Option 3 is correct

Explanation:

Step 1: Data given

For the equation aA + bB ⇆ cC + dD

The equilibrium constant is [C]^c * [D]^d / [A]^a*[B]^b

Step 2: Calculate the equilibrium constant Kc

CO+3H2⇌CH4+H2O

Kc = [H2O][CH4] / [CO][H2]³

The correct answer is

[CH4][H2O]/[CO][H2]3

Option 3 is correct

5 0

4 years ago

How many molecules are there in 31.8 moles of water?

Murljashka [212]

Answer:

$31.8\ moles = 1.91 * 10^{25}\ molecules$

Explanation:

Given

31.8 moles of water

Required

Determine the number of molecule

In standard units: 1 molecule of water is:

$1\ mole = 6.022 * 10^{23}\ molecules$

Multiply both sides by 31.8

$31.8 * 1\ mole = 31.8 * 6.022 * 10^{23}\ molecules$

$31.8\ moles = 31.8 * 6.022 * 10^{23}\ molecules$

$31.8\ moles = 191.4996 * 10^{23}\ molecules$

Express 191.4996 as a standard form

$31.8\ moles = 1.914996 * 10^2 * 10^{23}\ molecules$

Apply law of indices:

$31.8\ moles = 1.914996 * 10^{2+23}\ molecules$

$31.8\ moles = 1.914996 * 10^{25}\ molecules$

Approximate:

$31.8\ moles = 1.91 * 10^{25}\ molecules$

6 0

3 years ago