Chemistry High School

Write the symbol of each neutral element based
on its Noble Gas Shorthand configuration:

Write The Symbol Of Each Neutral Element Basedon Its Noble Gas Shorthand Configuration:

Answers

Answer 1

Answer:

1. Co

2. C

3. Ba

Explanation:

Related Questions

Noah added yeast and sugar to lukewarm water and placed it in a flask. He stretched a balloon over the opening of the flask. After several minutes, he noticed small bubbles rising along the side of the flask as the balloon slowly began to inflate. Noah concluded that —

Answers

Answer:

There was a chemical reaction

Explanation:

there was bubbles on the side of the flask

What do all cells requiere a constant supply of

Answers

To survive, every cell must have a constant supply of vital substances such as sugar, minerals, and oxygen, and dispose of waste products, all carried back and forth by the blood cells.

What is a substance so pure it cannot be broken down? *

Element
Compound
Mixture
Atom

Answers

Answer:

Element

Explanation:

This is a pure substance which can't be split into simpler substances by chemical means

Which of the following is an example of aerobic respiration?
A.Using yeast to make dough
B.Respiring while swimming underwater
C.Plant roots respiring in soil

Answers

answer is b because an aerobic respiration is living organisms that require oxygen. so when a person or a living thing goes underwater you need oxygen or air to breathe.

Answer:

i think the other person is wrong because humans cant breathe underwater

Explanation:

i say c. is the answer

Determine what elements are denoted by the following electron configurations:
5) 1s2 2s2 2p6 3s2 3p4
6)
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1

Answers

Answer:

5. Sulphur .

Explanation:

sulphur has the electron configuration above because it has 16 atomic number

Why might it be important to identify isoelectronic ions/atoms?

Answers

Answer:

Isoelectronicity may be used to predict the properties and reactions of a species. It is used to identify hydrogen-like atoms, which have one valence electron and are thus isoelectronic to hydrogen.

Explanation:


A salad including lettuce, tomatoes, and onions would be classified as a
A) compound.
B) element.
C) mixture.
D) solution.

Answers

Answer:

C)Mixtured

Explanation:

I know the answer

When a substance changes its state, all BUT ONE of these statements ist
A)
Mass remains constant.
B)
Only the form changes.
Kinetic energy changes.
D)
Something chemically new is formed.
Science

Answers

Answer:

Science...Only the form changes.Kinetic energy changes.

Explanation:

SCIENCE

Answer:

"Something chemically new forms" is the incorrrect statement

Explanation:

When a substance changes its state, it retains its mass even though its form and kinetic energy changes. It is simply moving between states, that is: loosing energy or gaining it. its chemical composition does not change.

Have a good day dude

PLEASE HURRY

Animals respond to external stimuli, such as light, temperature, and danger. Explain what body system is utilized when animals go into fight or flight mode

Answers

Sympathetic nervous system is the fight or flight system which gets the body ready and aroused for action and the parasympathetic nervous system reverses that state

What is the overall net charge of an ionic compound?
O 1-
O 1+
O 2-
O 0​

Answers

the charges should balance to 0

Explain why transition metals do not have a predictable pattern for the
ionic charges they form. ​

Answers

Explanation:

Many transition metals cannot lose enough electrons to attain a noble-gas electron configuration. In addition, the majority of transition metals are capable of adopting ions with different charges.

The reason why transition metals do not have a predictable pattern should be explained below.

What are transition metals?

It comprises many chemical elements that contains valence electrons with respect to the participation in the creation of the chemical bonds. The various transition metals should not lose sufficient electrons for attaining the noble gas electron configuration. The majority of the transition metal should be capable of adopting the ions with the distinct charges.

Learn more about charges here: https://brainly.com/question/21186713

Question 2 (1 point)
Given the following UNBALANCED equation,
Ca + HCl → CaCl2 + H2
what are the correct coefficients?
а
b
2,1,2,1
3,2,1,1
1,2,1,1
с
d
1,1,1,2
e
2,2,2,1

Answers

the correct coefficients are as follows (1,2,1,1)

GIVING BRAINLEST WITH WHOEVER HAS THE RIGHT ANSWER! Plz and Tysm.


Which is more dense?

1. Continental Crust

2. Oceanic Crust

3. Both

4. Neither one

Answers

Oceanic crust is more dense because it contains basalt which is more dense than granite which composes the continental crust.

help please , i’ll give u extra points

Answers

Answer:

I think c

Explanation:

cuz it says it's only friction to the left and actual force to the right

i’m pretty sure it’s c

Name the element: 1s2 252 2p 3s2 3p6 453 3d9
O Strontium Sr
O Krypton Kr
O Tungsten W
O Copper Cu
Silver Ag
Silicon Si

Answers

Answer:

Cu

Explanation:

The sublevel notation is

    1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹

The element is unknown;

    To find the element, sum the superscipts because the indicate the electrons;

2 + 2 + 6 + 2 + 6 + 2 + 9 = 29

The element with 29 electrons is copper

A boxed 10 kg computer monitor is dragged by friction 5.5 m up along the moving surface of a conveyor belt inclined at an angle of 36.9° above the horizontal. If the monitor’s speed is a constant, how much work is done on the monitor by friction?

Answers

Answer:

324 J

Explanation:

58.84 * 5.5 J = 324 J

I got 58.84 by 10 * 9.8 (gravity) * sin(36.9)

The amount of work done on the monitor by friction is equal to 431 Joules.

Given the following data:

Mass of computer monitor = 10 kgDistance = 5.5 metersAngle of inclination = 36.9°

To determine the amount of work done on the monitor by friction:

Mathematically, work done is given by the formula:

[tex]Work\;done = mgdcos\theta[/tex]

Where:

m is the mass of an object.g is the acceleration due to gravity.d is the distance.

Substituting the given parameters into the formula, we have;

[tex]Work\;done = 10 \times 9.8 \times 5.5 \times cos(36.9)\\\\Work\;done = 539 \times 0.7997[/tex]

Work energy = 431 Joules.

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is it true or false that ALL organisms are made of MANY cells?​

Answers

Answer:

I think false.

Explanation:

I say false because most living organisms are made up of one cell.

Answer:

yes!

Explanation:

the cell is the basic unit of life; and new cells arise from existing cells

The Ca +2 ion is isoelectronic with ?

Answers

Answer:

nut

Explanation:

What does the formula tell us in ionic compounds?

Answers

Answer:The overall ionic formula for a compound must be electrically neutral, meaning it has no charge. When writing the formula for the ionic compound, the cation comes first, followed by the anion, both with numeric subscripts to indicate the number of atoms of each.

Explanation:

halppppppppppppppppppppppppppppppppp

Answers

Answer:

It responds to the environment.

It grows and develops.

It produces offspring.

It maintains homeostasis.

It has complex chemistry.

It consists of cells.

Which element has 47 protons?silver

Answers

Answer:

The answer is Silver

Numbers of Protons in Silver: The element Silver (Symbol Ag) has the Atomic Number of 47. Any atom that contains exactly 47 protons in its nucleus is an atom of silver.

Hope this Helps!

What is the correct name for the compound H2O

Answers

Answer:

The common name for the compound H2O is water.

Explanation:

The systemic name of H2O is Dihydrogen monoxide.

Answer:

water

Explanation:

whats the name of CaS?

Answers

Answer

Chemical formula or Chemical Abstracts Service

Explanation:

A CAS (Chemical Abstracts Service) Registry Number is a unique identifier that tells you, for example, that acetone and dimethyl ketone are actually the same substance.

If this is a chemical it is Calcium Sulfate

HELP I WILL GIVE BRAINLIEST

Answers

The atomic number is 13. The bottom number is your atomic mass

Which substance can be broken down by chemical means?

Answers

Answer:

compounds

Explanation:

Compounds – pure substances that are the unions of two or more elements. They can be broken into simpler substances by chemical means.

A mountain climber at the peak of a mountain has _____
energy.

Answers

Answer:

Potential energy

Explanation:

A mountain climber at the peak of a mountain has potential energy.

The potential energy of a body is stored energy in a body. It is function of mass and position of the body.

 Mathematically;

       P.E  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

What are the missing coefficients for the skeleton equation below?
NH3 (g) + O2(g) → N2(g) + H2001)

Answers

Answer:

4, 3 , 2 and 6

Explanation:

The reaction equation is given as;

       NH₃  +  O₂   →    N₂   +   H₂O

Now, we need to balance the reaction equation;

     NH₃  +  O₂   →    N₂   +   H₂O

put the numbers a,b,c and d;

    aNH₃  +  bO₂   →    cN₂   +   dH₂O  

We need to balance the equation algebraically, ;

  Conserving N;

      a = 2c

   Conserving H;

      3a  = 2d

   Conserving O;

      2b  = d

Now, let c = 1, a = 2, d  = 3 and b  = [tex]\frac{3}{2}[/tex]  

  multiply through by 2;

            a  = 4, b = 3, c  = 2 and d  = 6

Insert the parameters:

                  4NH₃  +  3O₂   →    2N₂   +   6H₂O

in the liquid state hydrogen is used as a fuel in​

Answers

Answer:

Space Technology

Explanation:

can you pair electrons in degenerate orbitals before filling each orbital halfway

Answers

When degenerate orbitals are being filled, single electrons are placed into each degenerate orbital before they are paired with another electron in the same orbital.

4 Al + 302 → 2Al2O3
If a chemist does the reaction and produces 3.5 moles of aluminum oxide, how many moles of O2 were used in the reaction?

Answers

The answer is 5.25 moles
The Stochiometric coefficient between o2 and Al2O3 is 3:2
You have 3.5 moles of aluminum oxide so you have a simple equation you can solve
3.5*3=2x

According to the stoichiometry and given chemical equation ,5.25 moles of oxygen are  used in the reaction to produce 3.5 moles of aluminium oxide.

What is stoichiometry?

It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

In the given chemical equation, 3 mole of oxygen produces 2 moles of aluminium oxide.

Therefore for 3.5 moles of of aluminium oxide to be  produced  3.5×3/2= 5.25 moles of oxygen are used.

Thus, 5.25 moles of oxygen were used in the reaction to produce 3.5 moles of aluminium oxide.

Learn more about stoichiometry,here:

https://brainly.com/question/28780091

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