In a chemical reaction, the mass of the products _____ the mass of the reactants.is greater than
is less than
is equal to
has no relationship to

Answer:

Increased:long period

Explanation:

your welcome:)

Final answer:

Slow receptors, which respond to stimuli over longer durations, are more likely to have a cumulative or 'summation' effect. The likelihood of this summation increases with the length of time required for the responses to decay. This mechanism plays a critical role in cognitive functions such as learning and memory.

Explanation:

In the context of neuronal signaling, when we speak about slow receptors, we are referring to those that respond to stimuli at a slower pace, often due to a longer duration of transmitter binding, and therefore have a higher likelihood of summation compared to the fast receptors.

The concept of summation refers to the cumulative effect of a series of neural responses that take time to diminish. In this case, the likelihood of summation is increased by the long period of time required for those responses to decay. Thus, the correct answer to your question would be option D) increased : long period. This is because the longer the responses take to decay, the more likely they are to accumulate or summate.

It is also important to note that this process significantly contributes to the cognitive functions of the brain, such as memory and learning by facilitating the creation of long term potentiation within neural networks.

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The number of moles of O₂ will be 28 moles.

The given balanced reaction:

From the above reaction,

2 moles of C₂H₆ nd 7 moles of O₂ reacts together to produce 4 moles of CO₂ and 6 moles of H₂O.

Given:

Number of moles of C₂H₆ = 8

To find:

Number of moles of O₂=?

2 moles of C₂H₆  reacts with 7 moles of O₂.

1 mol of C₂H₆ = moles of O₂

8 moles of C₂H₆  = moles of O₂

Thus, number of moles of O₂ will be 28 moles.

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 The element  that has the smallest  atomic radius is  titanium

          explanation

• Calcium,potassium,  scandium and titanium are in  period  4 in the periodic table.

• Generally  the atomic   radius    decreases  across the period (from the left to the right) .  This is because  across the period  there is increase  in nuclear charge  which  make electrons been strongly attracted to the nuclear.

• Titanium is in atomic number 22 thus it has  more nuclear  charge  that  calcium,potassium and  scandium therefore  titanium has the  smallest atomic radius.

Answer:

Which element has the smallest atomic radius?

❌calcium

❌potassium

❌scandium

✔titanium

Relative and average atomic mass both describe properties of an element related to its different isotopes. Out of these two Relative atomic mas is more accurate. Therefore, the amount of nitrogen in the second sample is 23.3g.

What is mass?

Mass defines the quantity of a substance. It is measured in gram or kilogram. Average mass is the mass of atoms of an element that are isotopes. It can be calculated by multiplying mass of a isotope to natural abundance of that isotope.

Average atomic mass = (mass of first isotope× percent abundance of first isotope)+(mass of second isotope× percent abundance of second isotope)

9 g of hydrogen - 42 g of nitrogen

5 g of hydrogen - x g of nitrogen

9x= 42 ×5

x=23.3g

Therefore, the amount of nitrogen in the second sample is 23.3g.

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