CHEMISTRY HIGH SCHOOL

Which of the following notations is the correct noble gas configuration for Li

Answers

Answer 1
Answer:

Noble gas configuration for Li : [He]2s¹

Further explanation

In an atom, there are levels of energy in the shell and sub-shell

This energy level is expressed in the form of electron configurations.

Lithium with atomic number 3, then the electron configuration:

1s²2s¹

And for noble gas configuration or it can be called Condensed electron configurations :

[He]2s¹
Answer 2
Answer:

Answer:

[He]2s¹

Explanation:

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Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result from the fact that water molecules _____. a) tend to repel each other.b) are very small.c) are in constant motion.d) are extremely large.e) are electrically attracted to each other.
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The leading cause for dementia is Alzheimer's disease.
True
False

Answers

True.

Dementia's main cause is Alzheimer's disease (50%-70% of cases). You can find it in the DSM-5 as Major Neurocognitive Disorder due to Alzheimer's Disease.

A soccer ball is stationary, and gravity is pulling a soccer ball with a force of 25 N. You kick the ball with a force of 40 N. What is the net force? Is the force balanced or unbalanced?

Answers

To determine the net force acting on the soccer ball, we need to calculate the difference between the force applied by gravity and the force applied by your kick.
Force due to gravity: 25 N
Force applied by your kick: 40 N
The net force is calculated by subtracting the force due to gravity from the force applied by your kick:
Net force = Force applied by your kick - Force due to gravity
= 40 N - 25 N
= 15 N
The net force acting on the soccer ball is 15 N.
Since the net force is not equal to zero, the forces are unbalanced.


I hope this helps.

Please mark me as the brainliest.

What best describes how the testing of the initial version and the testing of the beta version fit into the four stages of the process of technological design

Answers

The Testing of the initial version is carried out in the third stage to determine what needs to be improved, while the testing of the beta version is carried out during the fourth stage to ensure that all necessary criteria are met.

The process of technological design involves several distinctive processes which can be broken down into four stages.

The four stages involved in the  process of technological design are :

  • Identify a need : during this process the engineer identifies a problem that needs to be resolved
  • design a solution : an initial design is created to provide a solution to the problem identified in stage 1
  • Implement the solution : The design is tested and implemented if successful
  • evaluate the solution : In this stage the result from the solution ( beta version ) is subjectedto ensure that all criteria are met

hence the testing of the initial version is to determine what needs improvement while the testing of the beta version is to ensure all criteria are met

learn more here: brainly.com/question/23367920

Answer:

C. The initial version is tested during the third stage to determine what needs to be improved, and the beta version is tested during the fourth stage to ensure that criteria are met.

Explanation:

Edge 2021

During radioactive decay, atomic nuclei of unstable isotopes: give off nuclear radiation

Answers

If this is a true/false question the answer would be true.  Since nuclear reactions involve the nucleus the nuclear radiation would need to be coming from the nucleus since the reaction is not happening anywhere else.

I hope this helps.  Let me know in the comments if the question was asking something else or if my answer is unclear.

Answer:

Radioactive decay

Explanation:

What information can a foliated metamorphic rock provide you about the conditions under which it formed?

Answers

A foliated rock forms when the minerals are realigned due to the presence of high temperature and pressure. The minerals align in such a way that the axes are directed to where the pressure was applied.

Why is chemistry important?

Answers

To study chemistry is to know the structures of bonds and the study of matter. When we study this, we learn about the pure substances and elements that are found on earth. The chemical equations are also important because it improves our math skills. 

Answer:

Science chemistry is fundamental for meeting our essential requirements of food, clothing, cover, wellbeing, energy, and clean air, water, and soil. Synthetic advancements improve our personal satisfaction in various ways by giving new answers for issues in wellbeing, materials, and energy use.

Here are probably the best motivations to concentrate on science.

Science chemistry assists you with grasping your general surroundings. ...

Fundamental information on science assists you with perusing and comprehend item names.

Science can assist you with pursuing informed choices. ...

Science chemistry is at the core of cooking. ...

An order of science chemistry  can assist with guarding you!

Explanation:

Science chemistry is fundamental for meeting our essential requirements of food, clothing, cover, wellbeing, energy, and clean air, water, and soil. Substance advances improve our personal satisfaction in various ways by giving new answers for issues in wellbeing, materials, and energy utilization.

Instances of Science chemistry in Regular day to day existence

Discolouration of Leaves

Food Processing

Normal Salt

Ice Drifting on Water

Creation of Tears While Slashing Onions

Sunscreen

Medications

Cleanliness

Baking Pop

Food Additives

Feelings

Espresso

Science chemistry will assist us with tackling numerous future issues, including practical energy and food creation, dealing with our current circumstance, giving safe drinking water and advancing human and natural wellbeing.

Viewed as the focal science chemistry , Science chemistry includes the investigation of how various substances change tones, shape, size and structures when responded with one more material or a bunch of substances. Besides, the utilization of different Parts of Science across various fields has prompted numerous disclosures and very good quality advancements which has helped humanity in either way. Understanding Science in day to day existence is significant in light of the fact that:

The food we eat, the beauty care products we use or the medications we take, these go through substance responses.

It can assist you with settling on choices connected with a great many things like watering plants in view of seasons, setting the temperature to prepare a cake, picking the right medication for causticity, applying a specific SPF sunscreen, and so on.

It assists you with understanding which component your body needs more. For example, some might require Vitamin D more than others
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