If Beryllium were to lose a proton, it would become a(n)

Answers

Answer 1

Answer:

an anion

Explanation:

since it lost a proton..it now has 3 protons and four electrons and possesses a minus charge since it is no longer neutrally charged..this minus charge makes it an anion


Related Questions

Can you please help me with this?

What happens with the evaporation of raindrops in the atmosphere?

Answers

Answer:

they become water vapor and after that, they become a type of precipitation

The evaporation of a drop of water in an air stream is determined by the rate of transfer of heat and water vapour between the drop surface and the ambient air. If these transfer processes are governed by molecular diffusion the appropriate equations take a well known form. I hope this can help

At the carnival, a baby was given a helium balloon whose
pressure equaled the atmospheric pressure at the carnival
which was 102.7 kPa. However, the baby wasn't paying
attention and the balloon floated away into the troposphere
where the atmospheric pressure is 97.8 kPa. What is the
positive difference between the pressure in the balloon and
the pressure of the troposphere in atm?
atm

Answers

Answer: 0.048 kPa

Explanation: no clue i just looked it up you’re welcome y’all:)

QUICK PLEASE
What is the final concentration when 275 mL of 20.0 % W/V hydrogen peroxide solution is diluted to 1.000 L?

20.0 % W/V
0.30 % W/V
55.0 % W/V
5.50 % W/V

Answers

Answer:

20.0% w/v A

Explanation:

A 20.0 w/V...

How many moles are in 3.90 x1030 atoms of Zn?

Answers

Explanation:
The problem basically wants you to find a way to convert between the number of atoms present in the sample and the number of moles they are equivalent to.
To convert between atoms and moles we use something called Avogadro's constant, which basically acts as the definition of a mole.
More specifically, in order to have one mole of an element you need
6.022 x 10^23 atoms of that element. You can thus use this number as a conversion factor to take you from atoms to moles or vice versa.
In your case, you will have


3.90 x 10^ 26 atoms Zn x 1 mole Zn ( Avogrado’s constant) / 6.022 x 10^23 atoms Zn

= 6.5 x 10^8 is the answer

The half-life of 42K is 12.4 hours. How much of a 750.0-gram sample is left after 62.0 hours?

Answers

Answer: 23 g

Explanation:

Amountafter = Amountbefore * (1/2)^(t/thalf)

Amountafter = (750 grams) * (1/2)^(62.0 hours/12.4 hours)

Amountafter = 23.4375 grams

750 has 2 significant digits

12.4 and 62.0 have 3 significant digits

So we take the lower of 2 significant digits:

23 grams

The half-life of 42K is 12.4 hours. 23.4375 grams of a 750 grams sample left after 62.0 hours.

What is Half Life ?

Half life is the amount of time required to reduce to one-half of its initial value. The symbol of half life is [tex]t_{1/2}[/tex].

How to calculate the remaining quantity when half life given ?

It is expressed as:

[tex]N(t) = N_{0} (\frac{1}{2})^{\frac{t}{t_{1/2}}[/tex]

where,

N(t) = quantity remaining

N₀ = initial quantity

t = elapsed time

[tex]t_{1/2}[/tex] = half-life of the substance

Here,

N₀ = 750.0 g

t = 62 hr

[tex]t_{1/2}[/tex] = 12.4

Now put the values in above equation we get

[tex]N(t) = N_{0} (\frac{1}{2})^{\frac{t}{t_{1/2}}[/tex]

[tex]N(t) = 750 \times (\frac{1}{2} )^{\frac{62}{12.4}}[/tex]

[tex]N(t) = 750 \times (\frac{1}{2})^5[/tex]

[tex]N(t) = 750 \times \frac{1}{32}[/tex]

N(t) = 23.4375 grams

Thus, from the above conclusion we can say that the 23.4375 grams of a 750 grams sample left after 62.0 hours.

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HELPPP!!!
The emission of electromagnetic energy from an atomic nucleus is called_______
decay.

Answers

Gamma decay, type of radioactivity in which some unstable atomic nuclei dissipate excess energy by a spontaneous electromagnetic process. In the most common form of gamma decay, known as gamma emission, gamma rays (photons, or packets of electromagnetic energy, of extremely short wavelength) are radiated.

30 ml of gas is changed from 4 atm to 2 atm what is the new volume

Answers

Answer:

[tex]\boxed {\boxed {\sf 60 \ mL}}[/tex]

Explanation:

In this problem, volume and pressure are changing, so we use Boyle's Law. This states that the volume of a gas is inversely proportional to the pressure. The formula for this law is:

[tex]P_1V_1=P_2V_2[/tex]

Originally the gas has a volume of 30 milliliters and a pressure of 4 atmospheres.

[tex]4 \ atm * 30 \ mL=P_2V_2[/tex]

The pressure is changed to 2 atmospheres, but the new volume is unknown.

[tex]4 \ atm * 30 \ mL = 2 \ atm *V_2[/tex]

We want to solve for the new volume (V₂). It is being multiplied by 2 atmopsheres. The inverse operation of multiplication is division, so we divide both sides by 2 atm.

[tex]\frac{4 \ atm * 30 \ mL}{ 2 \ atm}= \frac{ 2 \ atm *V_2}{2 \ atm}[/tex]

[tex]\frac{4 \ atm * 30 \ mL}{ 2 \ atm}= V_2[/tex]

The units of atmospheres (atm) cancel.

[tex]\frac{4 * 30 \ mL}{ 2 }= V_2[/tex]

[tex]\frac{120 \ mL}{2}= V_2[/tex]

[tex]60 \ mL= V_2[/tex]

The new volume of the gas is 60 milliliters.

dawdDAWdADdwaadadadawddawd

Answers

Answer:

yyuuuyytt

Explanation:

ggyhggggg,,,,,,,76yyygtyyhgyyggyuhu ubbububuuh7h7h

The energy of motion is called kinetic energy ? True or false

Answers

Answer:

True

Explanation:

Trust me

Answer:

True. Kinetic energy is the energy of motion. All moving objects have kinetic energy. When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward.

what makes a compound a pure substance ​

Answers

Answer:

Compounds contain more than one type of material. Yet both compounds and elements are considered pure substances. 

Pure compounds are created when elements combine permanently, forming one substance

Extra:

So, a mixture can be separated into its original components, while a pure compound cannot.

PLEASE HELP. What volume of 0.050 M of KOH neutralizes 200. mL of 0.0100 M HNO3?
a
20.0 ml
b
80.0 mL
40.0 mL
d
30.0 mL

Answers

I think it’s B .. not sure

Answer:

The answer is C. 40.0 mL.

Explanation:

To solve for the volume of KOH, start by using the formula [tex]N_{B}[/tex][tex]V_{B}[/tex] = [tex]N_{A}[/tex][tex]V_{A}[/tex] and label the information given in the question. The B in the formula stands for the base solution, and the A in the formula stands for the acid solution.

[tex]N_{B}[/tex] = 0.050 M KOH

[tex]V_{B}[/tex] =   ?    

[tex]N_{A}[/tex] = 0.0100 M HNO3

[tex]V_{A}[/tex] = 200. mL  

Next, use the formula [tex]N_{B} V_{B} = N_{A}V_{A}[/tex], and in order to find the volume for the base solution, the formula will have to be derived for [tex]V_{B}[/tex]. The formula will now look like [tex]V_{B}= \frac{N_{A} V_{A} }{N_{B} }[/tex].

Then, plug in the information given in the question. The equation will look like [tex]V_{B}= \frac{(0.0100 M HNO_{3} {})(200. mL) }{0.050 M KOH}[/tex]. Finally, solve the equation, and the answer will be 40.0 mL.  

A solution contains 35.00 g of sodium chloride in 100. G of water at 45.0C. How could this solution be described

Answers

Answer:

It is unsaturated

Explanation:

A solution is said to be unsaturated when it contains less solute than it can normally hold at a given temperature.

The solubility of NaCl remains fairly independent of temperature hence the line for the solubility of NaCl remains fairly flat in the solubility curve.

The solubility of NaCl is about 36 g of NaCl in 100g of water. Hence a solution that contains 35.00 g of sodium chloride in 100 g of water at 45.0C is unsaturated.

The empirical formula for a compound is CH2. If n is a whole number, which shows a correct relationship between the molecular formula and the emperical formula.

Answers

Answer:

D)subscript of C in molecular formula = n x subscript of C in empirical formula

Explanation:

THIS IS THE COMPLETE QUESTION BELOW;

.The empirical formula for a compound is CH2. If n is a whole number, which shows a correct relationship between the molecular formula and the empirical formula? a)<br /><br /> empirical formula mass / molecular mass = n<br /><br /> B) molecular mass = element mass / empirical formula mass ´ 100<br /><br /> c) subscript of H in empirical formula = 2  subscript of H in molecular formula<br /><br /> D) subscript of C in molecular formula = n  subscript of C in empirical formula<br /><br />

An empirical formula can be regarded as "shorten form" of a molecular formula. Instance of this is

A compounds CH4, C2H8, C4H12... with empirical formula of CH4. In this case a constant "n" represent the difference that exist between empirical formula and molecular formula, "n" which is a whole number, molecular formula is the numerator.

Therefore, subscript of C in molecular formula = n x subscript of C in empirical formula

how many molecules are in 3cacl2

Answers

Answer:

The molar mass and molecular weight of 3CaCl2 is 332.952. 

Si de una caja de gelatina de 30g, se obtiene 5 porciones. Cuantas cajas y cuantos gramos se requieren para preparar 100 porciones.? respuestas concretas por fis

Answers

Answer:

20 cajas - 600 gramos

Explanation:

Veamos los datos informados:

1 caja → 5 porciones

1 caja → 30 g

Si queremos preparar 100 porciones, indudablemente necesitamos:

100 porciones . 1 caja / 5porciones = 20 cajas

Finalmente ya sabemos que una caja tiene 30 g

Entonces, si tenemos 20 cajas . 30 g / 1 caja = 600 g

En conclusión:

Necesitamos una masa total de 600 gramos  en 20 cajas

What volume of O2 at STP is required to oxidize 8.0 L of NO at STP to NO2? What volume of NO2 is produced at STP?

Answers

The balanced equation of the reaction is:

[tex]O_2 + 2 NO[/tex] ⇒ [tex]2 NO_2[/tex]

Every gas occupied 24 L in one mole in r.t.p. according to the equation:

[tex]24 \times n = V[/tex]

8/24=0.333 mol

2 moles of NO makes 2 moles of [tex]NO_2\\[/tex] so

0.333*24=8L

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4? Which is the net ionic equation for the reaction?

Answers

Answer:

See explanation

Explanation:

A balanced chemical reaction equation has the same number of atoms of each element on both sides of the reaction equation.

Hence, for the reaction between KOH and H2SO4, the balanced chemical reaction equation is;

H2SO4(aq) + 2KOH(aq) ---------> K2SO4(aq) + 2H2O(l)

Complete ionic equation;

2H^+(aq) + SO4^2-(aq) + 2K^+(aq) +2OH^-(aq) -------> SO4^2-(aq) + 2K^+(aq) + 2H2O(l)

Net ionic equation;

2H^+(aq) + 2OH^-(aq) -------> 2H2O(l)

Pls answer ill give brainliest question in pic

Answers

C, im pretty sure if im wrong my bad

C is the correct answer


Temperature increases as you gain altitude in the stratosphere and the thermosphere. Temperature increases in altitude within the stratosphere because of the ozone layer.


—————

Please remember to revise this and make it in your own words if you want! I hope this helps you. -Doodle

—————

If you sprain your ankle and place a cold pack on it, how does the motion of molecules in your ankle change?​

Answers

Answer:

that heat energy speeds up the motion of the particles and the temperature of the reaction

Explanation:

HOPE IT HELPS

When we place an ice pack on a sprained ankle, the blood flow is reduced which prevents  further swelling, ice reduces the blood flow which is necessary  when  the ankle is injured.

What happens  after placing an ice pack?

The flow of blood and the lymph vessel is limited or decreased after applying an ice pack, this is an immediate  first aid to be given to the injured person

After 2-3 days of the injury, a hot  pack should  be applied to increase the blood flow and the lymph flow for an activity.

Hence, the molecule flow is reduced after applying an ice pack to the sprained ankle

learn more about molecules

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need help asap electrons
positively charged, subatomic particles found in the nucleus of the atom
2. metals
elements with properties intermediate between those of metals and nonmetals
3. period
a homogeneous mixture whose particles are too small to reflect or scatter light
4. compound
two or more elements that have chemically combined
5. solution
elements that are malleable, polish to a luster, conduct heat and electricity well and tend to lose electrons in a chemical reaction
6. protons
a vertical column on the periodic table
7. group
a horizontal row on the periodic table
8. metalloids
negatively charged, subatomic particles

Answers

Answer:

need help asap electrons

positively charged, subatomic particles found in the nucleus of the atom

2. metals

elements with properties intermediate between those of metals and nonmetals

3. period

a homogeneous mixture whose particles are too small to reflect or scatter light

4. compound

two or more elements that have chemically combined

5. solution

elements that are malleable, polish to a luster, conduct heat and electricity well and tend to lose electrons in a chemical reaction

6. protons

a vertical column on the periodic table

7. group

a horizontal row on the periodic table

8. metalloids

negatively charged, subatomic particles

Explanation:

Name the fundamental unit involved in the derived unit joule?​

Answers

Answer:

Energy

Explanation:

how many moles of hydrogen ions are present in a 2L solution with a pH of 2.75​

Answers

We are given:

Volume = 2 L

pH = 2.75

Finding the concentration required:

we know that pH is just the negative log of the hydrogen ion concentration

pH = -log[H⁺]

we are given that the pH is 2.75

2.75 = -log[H⁺]

log[H⁺] = -2.75                         [multiplying both sides by -1]

[tex]10^{log[H]} = 10^{-2.75}[/tex]                      

[H⁺] = 1.78 * 10⁻³ Molar

Number of moles of Hydrogen ions:

[H⁺] = 1.78 * 10⁻³ Molar

which means that there are 1.78 * 10⁻³ moles of hydrogen ions in 1 liter solution

1.78 * 10⁻³ moles / L

multiplying and dividing by 2, we get:

3.56 * 10⁻³ moles / 2 L

Hence we need 3.56 * 10⁻³ moles of hydrogen ions  

Answer:

3.556x 10^-3mol

Explanation:

Using pH =-log [ H+], we can calculate the concentration of the hydrogen Ions.

pH =-log [ H+], pH = 2.75

2.75 = -log[H+], taking antilog of both sides

10^ — 2.75 = [H+]

[H+] =1. 778 x 10^-3M

Now that we have the concentration and also knows the volume, we can use the relation

Moles = concentration X volume

= 1. 778 x 10^-3M x 2L = 3.56x 10^-3mol

The moles of the hydrogen Ions is 3.56x 10^-3mol


If the half-life of substance Z is 2.5 years, how long would it
take for 48 grams of substance Z to decay such that only 3
grams remain?

Answers

It takes 10 years for the substance z to decay from 48g to 3g

Half life of z = 2.5 years

Final amount of Z = 3 g

Initial amount of Z = 48 g

According to the question, it takes 2.5 years for substance Z to reduce to half.

So,

In 2.5 years, the amount of z = 48/2 = 24 grams

In next 2.5 years, the amount of z = 24/2=12g

In next 2.5 years, the amount of z = 12/2=6g

In next 2.5 years, the amount of z = 6/2=3g

To reduce the amount from 48g to 3g, total years = 2.5 + 2.5 + 2.5 + 2.5

= 10 years

Therefore, it takes 10 years for the substance z to decay from 48g to 3g

The Sun has six regions or layers. Identify the Sun's layers, beginning with the innermost and moving out.

1. Innermost
convective zone
2. 2nd innermost
corona
3. 3rd innermost
core
4. 4th innermost
photosphere
5. 5th innermost
chromosphere
6. Outermost
radiative zone

Answers

Answer:

Beginning from the innermost layer and moving towards the outermost of the sun that has six layers.

1. Innermost layer is the core: All the energy of the sun comes from core. Here hydrogen and helium are components that are present.

2. Radiative zone: The high-energy photons are move from the innermost core to the second innermost radiative zone.

3. Convective zone: It is a comparatively cooler layer to the core and radiative zone.

4. Photosphere: It is the 4th innermost region with sunspots and called the magnetic field of the sun.

5. Chromosphere: This red color layer with filaments of gas is cooler than the photosphere.

6. Corona: It is the outermost layer of the sun and the temperature is much higher here.

Carbon monoxide has _____of oxygen.
One atom
Zero atoms
Two atoms

Answers

The answer is two atoms
There is only One Atom of oxygen.

when electrical energy is converted into any other deform of energy, the total amount of energy

Answers

the answer is mechanical

How many grams of manganese (III) iodide (Mn13) will be needed to make 1.3 grams of hydrogen iodide (HI)? g MnI3 ​

Answers

Answer:

I dont know

Explanation:

I need it to

When you perform a stoichiometry calculation, you are determining the ...
A) actual yield
B) theoretical yield
C) percent yield

Answers

The actual yield is expressed as a % of the theoretical yield . (Percent yield )

Answer:

B) Theoretical

Explanation:

Just did the question

The specific heat capacity of water is 4.186 J/g °C
Calculate the temperature change when 8000 J of heat is added to 3g of water.
Use the equation q=mcT

Answers

Answer:

Solution given:

specific heat capacity of water [c]4.186 J/g °C

temperature[∆T]=?

mass[m]=3g

heat[Q]=8000J

we have

Q=mc∆T

8000=3*4.186*∆T

∆T=8000/12.558

∆T=637.04°C

the temperature change is 637.04°C.

Which of the following reactions is balanced?

A)

Sn2+ + 2Fe3+ → Sn4+ + 2Fe2+

B)

Sn2+ + 2Fe3+ → Sn4+ + Fe2+

C)

Sn2+ + Fe3+ → Sn4+ + Fe2+

D)

2Sn2+ + Fe3+ → 2Sn4+ + Fe2+

Answers

Answer:

A

Sn2+ + 2Fe3+ > Sn4+ + Fe2+

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