negative ions form when atoms _______ valence electrons.

Answers

Answer 1

Answer:

Negatively charged ions are called anions, and an anion is formed when an atom gains an electron. Thus, the atom has an extra charge of electrons,

Explanation:

so it becomes negatively charged.

Answer 2

Negative ions (or anions) are atoms that have gained electrons.

Electrons have a negative charge so if an atom is getting more of them, it's becoming more negative.


Related Questions

Someone pls help me I will make you brain

Answers

Your best answer would be C. Im not completely sure but i hope this will help!

ANSWER : I AND III

HOPE IT HELPED

What is the energy of a single photon with a wavelength of 750 nm.

Answers

Answer:

Refer to the attachment

Which two conversion factors would be used to convert the quantity of 4500 seconds into hours.

Answers

Answer:

the answer is A

Explanation:

in 60 seconds there is 1 minute and in 60 minutes there is one hour

hello how to draw the electron dot structure of H2S and F2?​

Answers

Explanation:

1. Attachment

Electron dot structure of H2S (hydrogen sulfide)

2. Attachment

Electron dot structure of F2 (Fluorine).

Someone pls help me I will make you you brain

Answers

Answer:

i have no clue

Explanation:

umm cause i have no clue sorry lol but good luck

What will be the new pressure of a gas at 36.0 atm and 108 C if the temperature of the gas is increased to 441 C?

Answers

Answer

199 ATM

EXPLANATION

assume that the volume is constant.  At higher temp the gas molecules move faster and the pressure goes up.

P=kT

CONVERT C TEMP TO K TEMP FOR GAS PROBLEMS!!!!!!

108C = 108 +273 = 381 K

441C = 441 + 273 = 714K

P=kT

108 =k x 381

K=108/381 = 0.279

AT THE HIGHER TEMP

P =0.279 X 714 =199ATM

Ammonium sulphate + __________________ potassium sulfate + ammonia + water

Please fill in the blank.

Answers

Answer:

Potassium Hydroxide Solution =

or

Potassium Hydroxide =

Answer:  Potassium Hydroxide (KOH)

Explanation:

Since we know the products and one of the reactions, we can work backward to discover what the other reactant may be.

As it is in the question, we can map the reactants and product:

Reactants                   Product

Ammonium                 Ammonia

Sulfate                         Sulfate

________                   Potassium

________                    Water

Since the reaction will yield Potassium and water, the likely reactant is Potassium Hydroxide (KOH). This is because we know that Ammonium lost a Hydrogen atom that could combine with the Hydroxide radical to form water.

This becomes clear when we consider the net ionic equation:

Ammonium sulphate + Potassium Hydroxide → potassium sulfate + ammonia + water

if we write this a balanced chemical equation:

(NH₄)₂SO₄   +  2KOH  →  K₂SO₄ + 2NH₃ + 2H₂O

if we write the reaction as an ionic equation

2NH₄⁺ + SO₄⁻ + 2K⁺ + 2OH⁻ → 2K⁺ + SO₄⁻ + 2NH₃ + 2H₂O

if we remove the ions that appear on both the reactant and product side (spectator ions)

2NH₄⁺ + 2OH⁻ → + 2NH₃ + 2H₂O

Suppose you identify a new element, Pivotium. Pivotium has two isotopes: Pivotium-426 and Pivotium-417. In the mixture, 11% of the mixture is Pivotium-426; the rest of the mixture is Pivotium-417. What is the relative atomic mass for Pivotium?

Answers

Answer:

Explanation:

Suppose you identify a new element, Pivotium. Pivotium has two isotopes: Pivotium-426  and Pivotium-417. In the mixture,  11% of the mixture is Pivotium-426; the rest of the mixture is Pivotium-417. What is the relative atomic mass for Pivotium?

Multiply the mass by the % written as a decimal and add the result.

426X0,11  +   417X 0.89  = 417.99 or 418

check 90% is. 417    only 10% 426

417X.9 +(426X0.10)=417.9

I will make you brainless answer this 1 question pleaaeeee!b​

Answers

The answer is point 3

A sample of an unknown solid is found to have a volume of 24.3 cm3 and a mass of
217.0 grams. What is the density of the unknown

Answers

Answer:  8.93 g/cm³

Explanation:

Density = mass ÷ volume  

           = 217.0 g ÷ 24.3 cm³  

           = 8.93 g/cm³

∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³.

I need a catchphrase for the element Boron as a superhero describing its traits!

Answers

Boron is a metalloid, intermediate between metals and non-metals. It exists in many polymorphs (different crystal lattice structures), some more metallic than others. Metallic boron is extremely hard and has a very high melting point.
am Master Boron, the Indestructable, Dark, Master of Good!

what type of mixture is formed when black iron filings and yellow sulfur powder black iron filing is formed
Homogeneous
Heterogeneous
Compound ​

Answers

A compound, is the right answer

Answer:

when you heat the blend, you form iron sulfide, a compound

Depending on the ratio, you could form Fe4S3 or fool's gold

Explanation:When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S. Therefore, heating of mixture of iron and sulphur powder is a chemical change forming a compoundf

What is the frequency of red light with a wavelength of 645 nm?

Answers

Answer:

4.64E14

Explanation:

First convert 645 nm to m = 6.4500E-7m. The equation for finding v with these values is the speed of light/wavelength. so 2.998E8/6.4500E-7m.

so your v or frequency would equal 4.64E14

Fun fact you know this is visible light because the visible light range is within the E14 range.

A field of many different species of wildflowers would be considered a(n) _____________.

a
organism
b
population
c
community
d
ecosystem
e
biome
f
biosphere

Answers

Answer:

That would be a community.

Explanation:

A field of many different species of wildflowers is considered to be a community.

What is community in biological terms?

It is called biological community meaning an interacting  group of various species sharing a common location.Factors which determine overall structure of community  are number of species, abundance of each species,interaction among the species and community's ability to return to normal after a natural calamity.

Change of communities over a period of  time is called as ecological succession.Each species in a community has its own characteristic niche . The niche includes all the interactions of the species with other members of the community.An ecosystem comprises of biological community together with its physical environment.

Learn more about biological community,here:

https://brainly.com/question/17304846

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Balance the following equation:
C7H602 + 02 -- CO2 + H20

Answers

Answer:

Explanation:

2C7H6O2 + 15O2 → 14CO2 + 6H2O.

Block A is made of copper, which has a specific heat value of 0.385 J/g*C.
Block B is made of aluminum, which has a specific heat value of 0.900
J/g*C. Both blocks have a mass of 100 grams. If you are trying to heat the
blocks to a temperature of 200 C, which block will need to absorb more
energy?
o Block A (copper) because it has a lower specific heat value.
o Block B (aluminum) because it has a higher specific heat value.
o Block A (copper) because it has a higher specific heat value.
o Block B (aluminum) because it has a lower specific heat value.

Answers

Block B  will need to  absorb more energy as it has higher specific heat value.

What is specific heat?

Specific heat is defined as the amount of heat required  to raise the temperature of one gram of a substance  by one degree Celsius rise. Units of specific heat  are calories or joules  per gram per degree Celsius.

Specific heat capacity  varies with temperature often  and is different for each state of matter. While the substance which undergoes phase transition then it's specific heat is technically infinite.

Specific heat of a gas is significantly higher when it is allowed to expand  as it is heated .It may also be referred to as a ratio  between the specific heat capacities of two substances at a given temperature.It is calculated by the formula ,Q=mcT

For copper, it is 100×0.385×473=18210.5 J

For aluminium ,it is 100×0.90×473=42570 J

As  the specific heat of aluminium is higher it will absorb more energy.

Learn more about specific heat ,here:

https://brainly.com/question/11297584

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Difference Between baking soda and baking powder

Answers

Answer:

Baking soda is sodium bicarbonate, which requires acid and a liquid to become activated and help baked goods rise. Conversely, baking powder includes sodium bicarbonate, as well as an acid. It only needs a liquid to become activated. Substituting one for the other is possible with careful adjustments. Baking soda is strong. In fact, it is about 3-4x stronger than baking powder. More baking soda in a recipe doesn't necessarily mean more lift.

Explanation:

Explanation:

baking soda contains one ingredient, sodium bicarbonate. however, baking powder contains sodium bicarbonate , monocalcium phosphate and either sodium acid prophetess or sodium aluminum sulfate

what is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen?

Answers

Answer:

A) FeO

Explanation:

Options:

A) FeO

B) FeO2

C) Fe2O

D) Fe7O2

The correct answer is A) FeO.

(Hope this helps can I pls have brainlist (crown)☺️)

The empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen is FeO. The correct option is A.

What is the empirical formula?

The simplest whole number ratio of atoms in a chemical molecule is its empirical formula. The empirical formula is the chemical formula that gives the number of atoms of the chemical formula that is given in the chemical reaction.

For example, the C₆H₁₂O₆ is the formula of glucose. The simplest formula is CH₂O. This will be the simplest ratio of this compound. The first one, this C₆H₁₂O₆ is the molecular formula.

It only contains the element one quantity.  The empirical formula that contains oxygen and iron will be FeO. The empirical formulas is calculated by dividing the simplest formula.

Thus, the correct option is A) FeO.

To learn more about empirical formulas, refer to the link:

https://brainly.com/question/14044066

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The question is incomplete. Your most probably complete question is given below:

A) FeO

B) FeO2

C) Fe2O

D) Fe7O2

pls help!!! A kitten has a mass of 1582 g and accelerates at 1.7 m/s^2. What is the net force acting upon the kitten?

Write down all the givens from the problem.

Are all of the units in the form required to use the generic equation? If not, then show your conversion.

Write the generic equation (equation with variables only) for this problem. Do not add any spaces between letters or symbols.

Substitute your numbers into the generic equation. This is where you show your math work, step by step. Solve the problem

Enter the numeric portion (numbers only) of your answer here rounded to the nearest tenth.

Enter the numeric portion (numbers only) of your answer here rounded to the nearest tenth.

Answers

Answer:

2689.4

Explanation:

how does decreasing the temperature affect the volume of gas??

Answers

Answer: Well, when you decrease the temperature in a gas the volume will decrease as well as the pressure. Since, heating a gas or liquid increases the temperature/pressure. Therefore, it'd increase the volume but since the temperature is decreasing the volume of the gas does too.

what is a substance called if it speeds up a chemical reaction?

Answers

Answer:

A catalyst

Catalysts speed up the rate of reaction without being changed or used up in the reaction.

Hope this helps!

if you answer this question right you get 100 points. What is my favorite color it is a 4 letter word and it ends with e

° °
∵ω∵

Answers

Answer:

Blue!!

I think it is blue!

is it blue cuz i think its blue

HELPPPP PLEASE WILLLL GIVE BRIANLIESTTTT

Answers

Answer: 105 mL

Explanation:

We can use the formula M₁V₁ = M₂V₂ the total volume of water that will yield 0.800 M HCl. We can then subtract that from the initial volume to get how much water needs to be added.

Since M₁V₁ = M₂V₂    (starting mole× starting volume = end mole × end volume)

⇒  (5 mol)(20 mL) = (0.80 mol) V₂

         100 mol/mL = 0.8 mol × V₂

⇒                      V₂ = 100 mol/mL ÷ 0.8 mol

                             = 125 m

Since we began with 20.0 mL of water,

water needed to add = 125 mL - 20 mL = 105 mL

                                   

Which one please help

Answers

Answer:

density is mass more mass more density and same as volume

hello
Describe the structure of solid potassium iodide.

Answers

Answer:

Potassium iodide is a metal-halide salt that has an ionic connection between the potassium cation (K+) and the iodide anion (I–). It is colorless to white and appears as cubical crystals, powder, or white granules. It has a salty, astringent flavor. This chemical is made from iodine and potassium hydroxide.

Write down the names, physical properties, and inertness of NOBLE GASES ( group no. 8)
Note:
*Please don't copy from anywhere
*50 POINTS!!!!!!!!

Answers

Answer:

There's No Answer Im Sorry

Convert 1.00 us gallon in kilometer (kL)

Answers

The answer is 4.54km

Which is larger 1.45 or 1.2544 for density

Answers

Answer:

1.45 is larger for density

4. Explain error and how it can impact your results from an experiment

Answers

Random errors will shift each measurement from its true value by a random amount and in a random direction. These will affect reliability (since they're random) but may not affect the overall accuracy of a result.

Activity 32 can someone explain how u do this?.

Answers

Answer:

write a question and answer it with the words

Explanation:

Gloria/ the bank/ the car

A: where is Gloria going? To the bank, right?

B: Yes, she's going to the bank. She's going in a car.

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