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yulyashka [42]
1 year ago
7

What non-metal has less than 4 valence electrons (Outmost cells electrons)?

Chemistry
1 answer:
kenny6666 [7]1 year ago
7 0

Correct Answer: Boron family

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How many valence electrons are available for bonding in bromine (Br)?
hichkok12 [17]

Answer:

7

Explanation:

It has 7 typing because it needs to be longer to submit

4 0
3 years ago
Intermolecular forces and kinetic energy both play a role in the phase a substance is in at a particular temperature and pressur
Step2247 [10]

Answer:

(Highest kinetic energy)

3. Neon at 65 K and 15 atm

2. Neon at 55 K and 10 atm

4. Neon at 25 K and 5 atm

1. Neon at 5 K and 0 atm

(Lowest kinetic energy)

Explanation:

In gases, <em>kinetic energy is higher the higher the temperature is</em>. This is because the molecules have more available energy under those conditions. <u>Generally there's also an increase in kinetic energy if there's an increase in pressure</u> -assuming there's no phase changes ie. the gas condenses into a liquid-.

6 0
3 years ago
What is the ph of a 2.00 m hno2 solution if ka=5.00 e-6?
zysi [14]

Answer: -

2.5

Explanation: -

Initial [HNO₂] = 2.00 M

ka = 5.00 x 10 ⁻⁶

ICE table for HNO₂ =

[\left[\begin{array}{cccc}concentrations&HNO2&H+&NO2\\Initial&2.00&0&0\\Change&-x&+x&+x\\Equilibrium&2.00-x&x&x\end{array}\right]

Ka = \frac{x2}{2.00-x}

5.00 x 10-6 = \frac{x2}{2.00-x}

x = 0.0032 M

pH = - log [H⁺]

= - log 0.0032

= 2.5

6 0
3 years ago
A sample of oxygen gas occupies a volume of 250 mL at .8 atm of pressure. What volume will it occupy at 1.2 atm of pressure?
musickatia [10]
167 mL

P1V1 = P2V2
P1 = .8 atm
V1 = 250 mL
P2 = 1.2 atm

Solve for V2 —> V2 = P1V1/P2

V2 = (0.8 atm)(250 mL) / (1.2 atm) = 167 mL
7 0
4 years ago
Circle the correct answer sound cannot travel through
Bad White [126]
A a solid is the correct answer
8 0
3 years ago
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