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3 years ago

Which group on the periodic table would have zero electronegativity because they have a full octet?

1 answer:

3 0

The group on the periodic table that would have 0 electronegativity due to the fact that their valence shell is full, i.e, have a full octet would be the inert or noble gases. They have a total of 8 electrons in their valence shell and are thus inert and cannot strongly attract electrons toward itself, from neighbouring atom electrons as it does not need to.

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Can u answer this?<br> Mass: 126 g<br> Volume: 15 cm to the third power<br> Density:?

Andre45 [30]

Answer:

Calculate density

Weight/mass

126

Volume

cm³

Density

8,400

kg/m³

Explanation:

4 0

3 years ago

Which scenario best exemplifies the way a signal is passed down an axon coated with myelin sheath?

goblinko [34]

Runners sprinting short distances in a relay race and handing off a baton scenario best exemplify the way a signal is passed down an axon coated with a myelin sheath.

Axons are long extensions of neurons (or nerve cells) involved in the transmission of nerve impulses away from the cell body. Each nerve cell has an axon that is over a foot long. A nerve cell communicates with another nerve cell by transmitting signals from the branches at the ends of the axon.

Each neuron in the brain has long cables that meander from the body of the cell. These cables, several times thinner than human hair, are called axons and are where electrical impulses leave neurons and are received by other neurons.

Learn more about axons here

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8 0

1 year ago

If a gas has a molecular mass of 44.0, the volume of 88.0 grams of the gas at STP would be ..

Montano1993 [528]

2) 11.2
All you have to do is multiply 44 by 22.4 L, which equals 985.6
Then you divide 985.6 by 88 to get your answer of 11.2 L

3 0

3 years ago

How many electrons are there in an atom of carbon?

Mashutka [201]

Answer:

if its a neutral atom there should be 6 electrons because there are 6 protons

Explanation:

8 0

3 years ago

The weak acid HZ has a Ka of 2.55x10⁻⁴.(a) Calculate the pH of 0.075 M HZ.

Dima020 [189]

<u>2.37</u> is the pH of 0.075 M HZ.

The term pH, which originally stood for "potential of hydrogen" (or "power of hydrogen"), is used in chemistry to describe how acidic or basic an aqueous solution is. Lower pH values are summarized for acidic solutions (solutions with higher H+ ion concentrations) than for basic or alkaline solutions.

The pH scale is inversely indicates to the concentration of hydrogen ions in the solution and is logarithmic.

⇒pH = -log( $a_{H+}$ )

Acidic solutions are those with a pH below 7, and basic solutions are those with a pH above 7, at a temperature of 25 °C (77 °F). At this temperature, solutions with a pH of 7 are neutral (e.g. pure water). The pH neutrality relies on temperature, falling below 7 if the temperature rises above 25 °C.

Learn more about pH

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4 0

2 years ago