Write the chemical formula for the following: potassium fluoride

Answers

Answer 1

Answer:

KF

Explanation:

Potassium = K

Fluoride = F

[tex]K^{+1}F^{-1}K_{1} F_{1}=KF[/tex]

Answer 2

Answer:

KF is your answer. Can I get Brainliest


Related Questions

What happens to the atomic radius when an electron is lost?
A. The positive ionic radius is the same size as the neutral atomic
radius.
B. The positive ionic radius does not follow a trend with the neutral
radius.
C. The positive ionic radius is smaller than the neutral atomic radius.
D. The positive ionic radius is larger than the neutral atomic radius.

Answers

Answer:the positive ionic radius is smaller than the neutral atomic radius

Explanation:

Answer:The positive ionic radius is smaller than the neutral atomic radius.

Explanation: just took the test

A sample of a gas occupies 6.00 liters at a temperature of 200 K. If the pressure remains constant and the temperature is raised to 600 K, the volume of gas sample would be 1.)18.0 L 2.)2.00 L 3.)3.00 L 4.)12.0 L​

Answers

Answer:

18

Explanation:

The volume of the gas should be 1. 18.0 L

Calculation of the volume of the gas;

Since A sample of a gas occupies 6.00 liters at a temperature of 200 K. If the pressure remains constant and the temperature is raised to 600 K

So here the volume of the gas should be

= 600 * 6 /200

= 18.0 L

hence, the first option is correct.

Learn more about temperature here: https://brainly.com/question/17895578


Which of the following molecules has a trigonal planar shape?

Answers

Answer:

BF 3

Explanation:

The geometry of the BF 3 molecule is called trigonal planar The fluorine atoms are positioned at the vertices of an equilateral triangle. The F-B-F angle is 120° and all four atoms lie in the same plane.

Answer:

BF3

Explanation:

A p ex

What physical property of the metal rods was being tested during step 4 of the procudure?

4. Measure and record how long it takes heat from the hot plate set on "high" to melt the wax ball.

A.
magnetism
B.
thermal conductivity
C.
electrical conductivity
D.
density

Answers

Answer:

B.  thermal conductivity

Explanation:

They physical property being tested during the fourth step is the thermal conductivity of the materials.

Thermal conductivity is the ability of a body to transmit heat energy from one place to another.

Since we are measuring how long it takes for heat from the hot plate to reach the wax ball, this is a typical experiment for measuring thermal conductivity. Most metals are good conductors and heat energy moves fast in them.Non-metals are poor conductors with low thermal conductivity.

simplify 2²×2³ someone plz help​

Answers

Answer:

[tex]2^5[/tex] or 32

Explanation:

The rule for exponents is that [tex]x^a*x^b = x^{a+b[/tex]. Thus, we have a+b = 5 so the answer is 2^5 or 32

HELPPP MEE I NEED HELPP PLEASE
Which person participates mostly in the quaternary level of an economy?
A. A coal miner
3. A car mechanie
C. A college professor
D. A car factory worker
SUBMIT

Answers

Answer:

B.Michanine

Explanation:

Answer: The answer is a college professor since people in the fourth level of industry create, share, and store information. They do research, give advice, report on events, and keep records. Furthermore, workers in the quaternary include teachers, librarians, accountants, scientists, and reporters, nor do the traits describe coal miners, car machines, and a car factory worker as these are the secondary level since their work involves manufacturing, make sure to study! You got this have a g’day. Again, the answer is C: A college professor.

Explanation:

The Mass of the mineral is 9.6 grams . The mineral is placed in a graduated cylinder containing 8.0 ml of water . The water rises to 16.0 ml of water. What is the Density of the mineral ?

Answers

Answer:

1.2 g/ ml

Explanation:

The volume of the mineral = increase in volume of the water whuich is 16 - 8 = 8mls.

Therefore the  mineral's density = 9.6 / 8

=  1.2 g/ ml  answer

How many moles of gold, a U, are in 3.60×10^-5 G of gold?

Answers

Answer:

See Below.

Explanation:

This is a conversion problem:

Using the molar mass of Gold (given in a periodic table) which is 196.97g/mol

you have

[tex](3.60*10^-5 g) *\frac{1moles}{196.97g}[/tex]

you always arrange the equation in a way to cancel whatever you don't want (grams) and leave what you do want (moles). Here grams cancel (top and bottom), so you're left with:

[tex]\frac{(3.60*10^-5 g) *(1)}{196.97} = 1.83*10^-7[/tex] moles of Gold

Plz help! The best answer will be marked as brainliest!

Make a funny sentence for the beneficial or great uses of magnesium

I DON¨T WANT A MEME!

Here is an example for Mercury, it HAS to for Magnesium

¨I have a long history of use in fluorescent lighting so I can light up any room ¨

Answers

Answer:

"Like when people say like im a party fowl but I'm like OMg, I'm like the reason everyone loves the 4th of July like I am 4th of July.

Explanation:

As magnesium ignites easily in air and burns with a bright light, it's used in flares, fireworks and sparklers. I imagine Magnesium talks like a valley girl lol.

Someone drops a book on the floor, and it makes a loud noise. At that time, you turn to look at the person who dropped the book. Turning and looking at the person who dropped the book is an example of a…

A. Phototropism

B. Response

C. Hydrotropism

D. Stimulus

Answers

Answer:

D

Explanation:

In fermentation, what do cells use instead of oxygen to break down glucose?

Answers

Answer:

sugar

Explanation:

In the absence of oxygen, the cell uses a process called anaerobic fermentation. or simply fermentation. Fermentation doesn't break the sugar down any further, it simply helps reset the system so that more sugar can be broken down.

Cells use sugar instead of oxygen to break down glucose.

The cell employs a phenomenon known as anaerobic fermenting throughout the oxygen-free environment. or just fermentation. Fermentation does not in any way break down the sugar; it only gently serves to refresh the mechanism because then additional sugar may very well be decomposed as well as subdivided.

Thus the above response is right.

Learn more about fermentation here:

https://brainly.com/question/16516092

#8- please help i suck at this, ill mark brainliest

Answers

Answer:

A.  Synthesis

B.  Combustion

C.  Single-replacement

D.  Decomposition

Explanation:

A:  Synthesis.  Two reactants are combined to form, or synthesize, one product.

B:  Combustion.  This is the general reaction for combustion.  When something combusts, oxygen must be present.  Carbon dioxide and water must also be produced.

C:  Single-replacement. The oxygen from Fe₂O₃ is moved to K to form K₂O.  Only one thing is being moved, or replaced.

D:  Decomposition.  You have one compound that breaks into, or decomposes, into two products.

Can someone please help me

Answers

I think the answer would be A because O is oxygen and it has 7. Although it’s in parentheses and has a 2 on the outside of those parentheses, so you would multiply and 7 x 2 = 14. 14 is larger than the other ones.
Hopefully I’m right and hopefully that helps.

Which of these reactants will produce a precipitate if they react?
NaC2H3O2+ HCI
NaOH + HCI
NaNO3 + CaCl2
KOH + Mg(NO3)2

Answers

Answer:

KOH+Mg(NO3)2

Explanation:

The double replacement reaction will result in:

2KOH(aq) + Mg(NO3)2[tex]\\[/tex](aq)--> 2KNO3(aq) + Mg(OH)2(s)

Solubility rules prove that Mg+OH^- is insoluble and will result in a precipitate (solid)

Why are metals malleable?

a
They are shiny.
b
The electrons are delocalized and able to move between the atoms.
c
The electrons are held tightly within the lattice structure making it strong.
d
The electrons are shared between two metal ions and this holds the atoms together.

Answers

Answer:

b is the anwer

Explanation:

the option is the explanation


Which of the following is considered a sign of a chemical change?

Answers

i think c i'm not sure tho sorry

Kayla’s teacher gave each lab group three liquids and asked them to test their pH. Kayla tested each one and recorded her results in the chart below.

She then combined the liquids and tested again. She combined liquid C and D and the resulting pH was 7.

Which statement BEST describes the process that took place when liquid C and D were combined?




F) D. The solution would be slightly acidic.

G) C. The acid and base would neutralize to form a salt.

H) A. The acid and base would neutralize to form an element.

I) B. The solution would be slightly basic.

Answers

Answer:

A. The acid and base would neutralize to form an element.

Answer:

egc jnpz rof join it on google meet

How many moles are in 5.25 X 10 25
atoms of Au?

Answers

Answer:

The answer is 87.21 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{5.25 \times {10}^{25} }{6.02 \times {10}^{23} } \\ = 87.2093023...[/tex]

We have the final answer as

87.21 moles

Hope this helps you

4. Advection fog forms when warm moist air comes in from the Pacific Ocean and

blows over the cold California current.

A.True

B.False

Answers

Answer:

A, True

Explanation:

The relationship between a carnivore and an herbivore can be started as

Answers

Answer:

Herbivores

Explanation Herbivores are the animals that rely on plants for their nutrition or food. Carnivore are the animals that prey upon herbivore to survive.

change word equation into chemical equation.
a Calcium carbonate -----> Calcium oxide + Carbon dioxide
b Zinc + Sulphuric acid -----> Zinc sulphate + Hydrogen​

Answers

Answer:

Ca(CO3) --> CaO + CO2

Zn + H2SO4 --> ZnSO4 + 2H2

Explanation:

^^^

1. Compare the masses and the charges for the three particles which make
up
the atom.

Answers

Answer:

The charge on a neutron=1+-/neutral

It has a mass 1

The charge on electron is 1-/negative

It's mass is 1/1840

The charge on a proton is 1+

It has a mass 1 too.

Explanation:

3. Which of the following is NOT an abiotic factor in an ecosystem?
Air pressure
Bacteria
Sunlight
Water

Answers

It is Bacteria........
The answer is Bacteria. Bacteria is biotic.

What is the chemical name for Cu(NO3)2

Answers

Answer:

The chemical name is  Copper(II) nitrate

Explanation:

?
The group number tells the number of
Elements in the column
Number of valence electrons
O Number of energy levels
O Number of protons in the elements

Answers

Answer:

number of valence electrons

Explanation:

elements in the same group has same number of valence electrons

8Li
8 Be
0e
What type of radioactive decay is this?

Answers

Answer:

emitted i think  

Explanation:

To determine the type of radiation (alpha, beta or gamma), first determine the background count rate, then the source count rate with no absorber. Next, place a sheet of paper between the source and the monitor. If the counts are significantly reduced, the source emits alpha particles.

Answer:

Plasma Levels of IL-8 and TGF-β1 Predict Radiation-Induced Lung Toxicity in Non-Small Cell Lung Cancer: A Validation Study

Explanation: got it from sources

Diffusion of Ammonia in an Aqueous Solution. An ammonia (A)-water (B) solution at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface. The concentration of ammonia in the organic phase is held constant and is such that the equilibrium concentration of ammonia in the water at this surface is 2.0 wt 'Yo ammonia (density of aqueous solution is 991.7 kg/m3) and the concentration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density of 961.7 kg/m3). Water and the organic are insoluble in each other. The diffusion coefficient ofNH3 in water is 1.24 x 10- 9 m 2/sCalculate the flux N_B. Explain.

Answers

Answer:

The Flux N_B = 0

Explanation:

So, we are given the following set of data or parameters which is going to help in solving this particular Question. So, let us take each at a time;

=> "An ammonia (A)-water (B) solution at 278 K and 4.0 mm thick is in contact at one surface with an organic liquid at this interface."

=>" 2.0 wt 'Yo ammonia (density of aqueous solution is 991.7 kg/m3) and the concentration of ammonia in water at the other end of the film 4.0 mm away is 10 wt % (density of 961.7 kg/m3). ''

With the information above, we can determine the N_A(which the question did not specify that we should calculate).

For the value of N_B, it will be equals to zero(0) because the insolubility of water in organic solvent.

What is the difference between the crest and the trough of a wave?

Answers

Answer:

Trough is the lower bound of wave, while the crest is the upper bound of a wave.

Explanation:

see picture attatched

Please help me, I am struggling please help

Answers

Answer:

Colors are seen by burning of metal salts, for example Sodium chloride makes yellow frame.
It is very common for fireworks to contain Aluminum, Iron, Steal, Zinc or the Magnesium’s dust to create bright light.

How many significant figures does this measurement contain? 0.0000508800 Gm

Answers

Answer:

There are 6 significant figures

Answer:

6 significant figures

Explanation:

When counting significant figures, start on the left with the first non-zero number. Count all numbers that fall between non-zero numbers. Count all zeros after a 1-9 and after the decimal.

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