Chemistry High School

PLEASE HELP WILL MARK BRAINLEST!

Which of these elements does not take an electron from an s orbital?

PLEASE HELP WILL MARK BRAINLEST!Which Of These Elements Does Not Take An Electron From An S Orbital?

Answers

Answer 1
all of them will take from an S orbital because the s block starts at hydrogen.
Answer 2
Avocados from Mexico

Related Questions

Someone please help I don't know if my answers are correct for this

Answers

Answer:

Your correct it is false

why is it important for the appendages of an arthropod to be joined

Answers

Answer:

you mean "jointed." jointed appendages give arthropods much greater movement flexibility and range.

Animals need various nutrients in order to live and grow. Nitrogen, for example, is a nutrient that is needed to form molecules found in genetic material. How do animals obtain nitrogen? A. They eat plants which have absorbed nitrogen from the soil. B. They create nitrogen in their bodies using other nutrients as building blocks. C. They breathe in and absorb nitrogen gas from the atmosphere. D. all of these

Answers

Answer:

It's A

Explanation:

Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use.

what type of bond is Cl and Br?​

Answers

Answer: Polar bond

Explanation:

NEED HELP ASAP WILL GIVE BRAINLYEST Organisms that are made up of prokaryotic cells are NOT ____________. Multicellular All of these are true about prokaryotic cells Simpler than organisms made up of Eukaryotic celled organisms Bacteria

Answers

Explanation:

the answer is that prokaryotic cells are not multicellular

Suggest why we have discovered more elements today compared to our ancestors 50,000 years ago

Answers

Answer:

well, we have so much better and more tech and we are a lot smarter than we were before.

Explanation:

Answer:

We have way more advanced technology than our ancestors and we have a better idea of how the earth was millions of years ago.

Explanation:

You are a nurse giving a patient 0.75 cc per minute of a drug cocktail intravenously . A cc is 1ml of a solution . If the patient needs thr iv for 2 hours how many liters of this solution will you need to prepare

Answers

Answer:

90 mL

0.09 Liters

Explanation:

Givens

1 cc of solution = 1 mL

0.75 cc / min needed to go in intravenously.

2 hours needed.

? Liters

Solution

1 hour = 60 minutes

1 hours = 2 * 60 = 120 minutes

rate = 0.75 cc/minute

Liters = rate * time

Liters = 0.75 cc * 120 minutes

Liters = 90 cc

That's not the answer.

1 Liter has 1000 mL or ccs

x Liter has 90 mL          

Equation

1/x = 1000 / 90

Solution

Cross multiply

1000x = 90*1           Divide by 1000

x = 90/1000

x = 0.09 Liters.

WILL AWARD POINTS AND BRAINLIEST
Which of the following is an example of a compound?

Select all that apply

H20

F2

C2H6

Ag


Is the answer H2O and C2H6?

Answers

Yes you are correct H20 and C2H6 are both compounds, something that helps is to notice the different elements to find that it’s made up of 2 or more elements making it a compound

HURRY!!!! TIMED!!! WILL GIVE BRAINLIST!!!

A 10.0 g sample containing calcium carbonate (CaCO3) and an unreactive material was placed in excess hydrochloric acid, HCl. A reaction occurred, producing calcium chloride (CaCl2), water, and carbon dioxide. (a) write a balanced equation for the reaction (b) when the reaction was complete, 800 mL of carbon dioxide gas was collected. How many moles of calcium carbonate were used in the creation? (c) How many grams of CaCO3 were used? (d) If there was another contaminant in the sample that was not unreactive, would this have caused the percent yield of carbon dioxide to be higher, lower, or the same, explain your answer.

Answers

Explanation:

(a) write a balanced equation for the reaction

CaCO3 + HCl --> CaCl2 + H2O + CO2

The balanced equation is given as;

CaCO3 + 2HCl → CaCl2 + H2O + CO2  

(b) when the reaction was complete, 800 mL of carbon dioxide gas was collected. How many moles of calcium carbonate were used in the creation?

From the balanced reaction;

1 mol of CaCO3 reacts to produce 1 mol of CO2

1 mol of CO2 = 22.4 L of CO2

This means;

1 mol of CaCO3 reacts to produce 22.4L  of CO2

x mol would produce 800ml (0.8 L) of CO2

1 = 22.4

x = 0.8

x = 0.8 * 1 / 22.4 = 0.0357 mol

(c) How many grams of CaCO3 were used?

Mass = Number of moles * Molar mass

Molar mass of CaCO3 = 100.0869 g/mol

Mass = 0.0357 mol * 100.0869 g/mol = 3.57 g

(d) If there was another contaminant in the sample that was not un reactive, would this have caused the percent yield of carbon dioxide to be higher, lower, or the same, explain your answer.

The same

An un reactive contaminant in the sample is most likely a catalyst. Catalysts only affect the rate of reaction. They do not affect yields of products.

Which element is a poor conductor of heat?
A. F
B.K.
C. Fe
D. Ag

Answers

The Answer Is Fe Because Fluorine Is a Gas (In Its Elemental Form) Which, Like Other Gases, Is Not a Good Conductor Of Either Heat Or Electricity.

Toothpaste is an alkali. How could you use the toothpaste to show that red cabbage is an indicator?

Answers

Answer:

PUT THE TOOTHPAST ON CABBAGE AND CHECK IT OUT AFTER A DAY

A student has a mixture of salt and iron filings.
Which property can the student use to separate the different parts of the mixture?

Answers

Answer:

aksksks

Explanation:ss

x

zxrkkrkrkkrkkrrkr

The condition of having a small amount of gravity is called _____.
free fall

ISS

microgravity

Answers

Answer:

The effects of microgravity can be seen when astronauts and objects float in space. Microgravity can be experienced in other ways, as well. "Micro-" means "very small," so microgravity refers to the condition where gravity seems to be very small.

ANSWER: MICROGRAVITY

Chem lab report is attached to the question plz help.

Answers

Answer: When I opened the doc it didn't work..

Explanation:

How many moles are in 7.8g of CaO?

Answers

This compound is also known as Calcium Oxide. The SI base unit for amount of substance is the mole. 1 grams CaO is equal to 0.017832495800447 mole. Note that rounding errors may occur, so always check the results.

Hope I helped :)

True or false; when something heats up, New energy is created, and when something cool down, Energy is destroyed.

Answers

Answer:

This is false.

Explanation:

This statement directly opposes the first law of thermodynamics which states that energy can neither be created nor destroyed, but can transfer from one source to another.

Scientists say that the solar system formed from______.

Answers

Answer:

a rotating disk of dust and gases

Explanation:

brainliest?

Answer:  scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star (called a supernova). ... Squeezing made the cloud start to collapse, as gravity pulled the gas and dust together, forming a solar nebula.

Explanation:

What happens to a molten ionic substance when an electric current is passed through it

Answers

Answer:

When an electric current is passed through a molten ionic compound the compound decomposes or breaks down. The process also occurs for aqueous solutions of ionic compounds. Liquids and solutions that are able to conduct electricity are called electrolytes

Explanation:

Source: the internet

The nucleus of an atom contains ________________________________________.

Answers

Answer:

protons(positively charged) and the neutrons (no charge)

Explanation:

Answer:

The nucleus of an atom contains protons and neutrons.

In chemical reactions, what does the principle of conservation of mass mean?

Answers

I think It means that any balanced equation is conserved. Meaning that the equation is equal. The law states matter can’t be created or destroyed. In chemical reactions the mass of an element is the same before and after the product. There’s two sides two an equation the reactants side and the product’s side. Hope this helps.
Principle of Conservation of Mass
In simple terms, it means that in a chemical equation, the mass of the reactants is same as mass of products. No mass is created, and cannot be transformed.

Is energy part of the system or surrounding?

Answers

Answer:

Se Puede Traducir?

Explanation:

Mmm?

Answer:

i think it is surroundings

lons form when atoms gain or lose valence electrons. When an atom gains
electrons, it becomes negatively charged, and when an atom loses
electrons it becomes positively charged. Why?

Answers

Answer:

In neutral atom number of electrons (negativity charged particle) and number of proton ( positively charged particle) are equal.

When one or more electrons are lost so positive charge particle increases and cation is formed.

For example in Na 11 electrons and 11 protons are present when it loses one electrons protons are 11 and 10 electron are remaining so one positive charge is present.

Morever when an element gain electrons one negative charge increases and anion is formed. For example in Cl 17 proton and 17 electrons are present when it gain one electron 18 electrons and 17 protons are now present one negative is more so anion negative ion is formed.

Explanation:

balance de CO2 + H2O​

Answers

Explanation:

6 CO2 + 12 H2O ---->C6H12O6 + 6 O2+ 6 H2O

PLEASE HELP!!!!!!!!!!!!!!!!!!!! ASAP!!!!!!!!! Which two elements are mainly found in the inner and outer core?
A. Fe and Ni
B. Fe and Si
C. Ni and Si
D. Ni and C

PLEASE TELL ME WHAT THOSE ABREVIATIONS MEAN ALSO!!!!!!!!!!!!!

Answers

a
fe is iron
ni is nickel

Element X has three electrons in its outermost orbit.
Element Y has seven electrons in its outermost orbit.

What is the chemical formula of the ionic compound
formed by these elements when they react together?
(Use X and Y as the chemical symbols.)

PLEASE SOMEONE EXPLAIN THIS IN DETAIL

Answers

Explanation:

element x _ carbon having two shells 2,3

element y _ fluorine atomic no 9 EC 2,7

when carbon react with fluorine it destroyes graphite and form fluorocarbons and thus form covalent bond

hope it helps u

does a high melting point mean the substance will melt faster or slower?

Answers

Answer:

slower...............

.

..

Answer:

it'll melt slower

Explanation:

because it needs to get to a higher temperature ig

PLEASE HELP ME, 20 POINTS

How many atoms are in 25.00 g of Li.

Question 1 options:

2.393 x 1024 atoms of Li


1.333 x 1023 atoms of Li


2.16 x 1026 atoms of Li


2.17 x 1024 atoms of Li

How many grams is 2.393 x 1024 atoms of Cl

Question 2 options:

70.45 g Cl


140.9 g Cl


140.9 mole Cl


70.45 mole Cl

How many atoms are in 25.00 g of B.

Question 3 options:

1.393 x 1024 atoms of B


1.333 x 1023 atoms of B


2.16 x 1026 atoms of B


2.17 x 1024 atoms of B

How many grams is 2.393 x 1024 atoms of O

Question 4 options:

70.45 g O


140.9 g O


63.58 mole O


63.58 g O

Answers

Explanations:

Question 1: Lithium in 20.00+ g is C. or D., but 25.00+ g is D. which means this is the correct option.

I am unsure of Question 2. I don't think it is mole though.

Question 3: Boron in 25.00-30.00 g is B. or D., but 25.00 g would be C.

Question 4: 2.393 x 1024 atoms of Oxygen is 63.58 mole O. I don't know for sure, but I think this is correct.

I am NOT professional. There is a chance I am incorrect. Please reply to me if I've made a mistake.

Na
Which term describes argon? *
(2 points)

alkali metal
halogen
transition metal
noble gas

Answers

Answer:

Argon is a noble gas

Hope this helps

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Answers

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How many atoms of silver are in a bracelet that has a mass of 13.94 grams?

Answers

Number of Silver atoms : N = 7.8 x 10²² atoms

Further explanation

Given

mass of bracelet : 13.94 g

Required

Number of atoms

Solution

Assuming the bracelet consists entirely of silver

mol of silver :

= mass : molar mass

= 13.94 g : 107,8682 g/mol

= 0.129

Number of atoms :

N = n x No(No = Avogadro's number)

N = 0.129 x 6.02 x 10²³

N = 7.8 x 10²² atoms

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