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galina1969 [7]
4 years ago
7

What would happen if an alkali metal was combined with a halogen?

Chemistry
1 answer:
Komok [63]4 years ago
8 0
Ionic bond would form
e. g. NaCL
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Four students all do the same experiment for the science fair. They test reaction times for pushing a button when a specific col
dsp73

The order of the students from the most reliable to the least reliable is C. Student 4, Student 1, Student 2, Student 3.

<h3>what student has the most reliable data?</h3><h3 />

the student with the most reliable data is the one that has the least variation in their data in the various trials.

this student is therefore student 4.

the next student would be student 1 and student 2 would be the third most reliable.

student 3 has large variations in their trials which makes their data the least reliable.

find out more on reliable data at brainly.com/question/8391667.

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7 0
2 years ago
A measure of how closely individual measurements agree with one another 1 point<br> is
rewona [7]

Precision

Precision: A measure of how closely individual measurements agree with one another. Accuracy: Refers to how closely individual measurements agree with the correct or true value.

6 0
3 years ago
Place the steps of the action potential in order.
Ierofanga [76]

Answer:

-Reversal of the resting potential due to influx of sodium ions

-Mechanism that restores the resting membrane voltage and intracellular ionic concentrations

-Period during which potassium ions are diffusing out of the neuron because of a change in membrane permeability

-A brief reversal of membrane potential that travels along the axon

Explanation:

An action potential is a situation where the membrane potential is briefly reversed from -70mV to +30 mV

There are three steps of the moving action potential, including;

1) The depolarization step, where the membrane resting potential is reversed by the rush of sodium ions into a neuron

2) The repolarization, due to the closing of the voltage-gated sodium channels and the opening of the potassium channels, which is a mechanism that restores the membrane's resting voltage and the ionic concentration in the cell

3) Hyperpolarization, where due to some open potassium channels, there is an increased potassium permeability, and excessive efflux of potassium ions take place, which results in a dip in the membrane potential

4) The above three phases describe the phase of the action potential which is the brief reversal of membrane potential that travels along the axon

7 0
3 years ago
In the first distillation this week, which component of the original solvent mixture makes the larger contribution to the vapor
Olenka [21]

In the first distillation this week, Hexane from the original solvent makes a larger contribution to the vapor pressure of the mixture.

In between hexane and toluene, the hexane will have more vapor pressure contribution in the solution. The boiling point of hexane is much lower than toluene. Therefore, it will evaporate easily at low temperatures and start exerting pressure on the solution.

Hence between hexane and toluene, because of more vapor pressure of hexane and lower boiling point, it will easily evaporate and exerts pressure.

Therefore, from the original solvent, hexane makes a larger contribution to the vapor pressure of the mixture.

To learn more about vapor pressure and hexane, visit: brainly.com/question/28206662

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7 0
1 year ago
What is the meaning of acid?​
weqwewe [10]

Answer:

a substance which when dissolved with water makes H+ ions

7 0
3 years ago
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