The charge of the Fe ion in the compound FeO is blank
The charge of the Fe ions in the compound Fe2O3 is
blank

i think Neuterons i am right

Answer:

I do not know srry

Explanation:

Answer:

first one

Explanation:

Answer:

Explanation:

Water vapor is when water molecules are present in the air, while steam is water heated to the point that it turns into gas. In simplified science, both are referred to as the gaseous state of water. Steam is usually white or translucent in nature, while water vapor can be clear or translucent.

Steam is simply, water vapor. Hence, the key difference between steam and vapor is that steam is the gaseous state of water whereas vapor is the gaseous state of any substance. Moreover, steam is typically invisible while the vapor of some substances is colorful.

Answer:

i would assume i mean who has cold farts

Explanation:

Yes, farting is an example of an exothermic reaction.

A reaction that is chemical in nature and is characterized by the release of energy in the form of heat or light is called an exothermic reaction.

Farting is a normal part of digestion that reflects the activity of the bacteria in your gut.

Yes, farting is an example of an exothermic reaction.

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ITS CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Answer:

28 blocks

Explanation:

Amount: 21 + y

Ratio: 3:1

Total Ratio: 4

1 = yellow blocks

say if 3 is to 1 then 21 is to how many?

21 ÷ 3

= y = 7

= 21 + 7

= 28 blocks

( or you can use the practical method using your fingers )

Answer:

An ion with a positive charge is called cations because if there's a group of atoms, a positive or negative charges :3

Explanation:

:3

Answer:

2.The US surgeon general’s 1964 report declared that smoking cigarettes was linked to cancer.4.The average global temperature of the Earth has increased by almost two degrees in the last century.

Explanation:

on edge

Answer:

2 and 4

Explanation:

I just did it....

Answer:

CaBr2 is a colorless solid and the charge on Calcium is +2

Explanation:

CaBr2 is a colorless solid at room temperature.

Other properties include -

a) It is a crystalline solid

b) Melting point of 765°C.

c) It is deliquescent

d) Soluble in water and absolute alcohol.

The charge of Br is -1. Here two atoms of Br attaches with one atom of calcium. Hence the charge of calcium is +2

Answer:

0.065 moles

Explanation:

Answer:

6.6 g

Explanation:

La ecuación de la reacción es;

MnO2 + 4 HCl -------> MnCl2 + Cl2 + 2H2O

Número de moles de HCl que reaccionan = 7.5g / 36.5 g / mol = 0.21 moles

Dado que;

4 moles de HCl producen 1 mol de MnCl2

0,21 moles de HCl producen 0,21 * 1/4 = 0,0525 moles de MnCl2.

Masa de MnCl2 = 125,844 g / mol * 0,0525 moles = 6.6 g

Answer:

you have to decide 865,000 with 1000 and the answer is 865

Answer:

F₂ (g) + FeI₂ (aq) →  FeF₂ (aq) +  I₂ (l)

Explanation:

Our reactants are:

F₂ → Fluorine gas, a dyatomic molecule

FeI₂ → Iron (II) iodine

Our products are:

I₂ → Iodine

FeF₂ → Iron (II) fluoride

Then, the reaction is:

F₂ (g) + FeI₂ (aq) →  FeF₂ (aq) +  I₂ (l)

We see it is completely balanced.

Answer:

c i think

Explanation:

The heat is needed to increase the temperature of 19.3 g lead from 22°C to 41° C is 46.9 J or 46.9 MCT.

Heat is defined as a form of energy related to the motion of an atom or molecules. It can also be defined as transfer of kinetic energy from one medium or object to another medium or object

Heat energy can be calculated as

q = mcΔT

ΔT = 41°C - 22°C = 19°C

So q = 19.3g x 0.128J/g °C x 19°C

        = 46.9 J or 46.9 MCT

Thus, the heat is needed to increase the temperature of 19.3 g lead from 22°C to 41° C is 46.9 J or 46.9 MCT.

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Answer:

The empirical and molecular formula because the ratio is 2:1 and there is 2 hydrogen atoms and 1 oxygen atom.

Hope this helps!

Answer:

Erosion

Explanation:

Answer:

you can explore the structure of atoms as you add protons, neutrons, or electrons to a model and the name of the element you have created

Explanation:

Answer: Water is the material an ocean wave moves through.

Explanation: An ocean wave and a sound wave are very similar because the water acts as the medium. The waves travel through the water just like a sound wave would travel through the medium.

Answer:

imcomplete dominance

Explanation:

because it is

Answer:

A= Covalent compound

B= Covalent compound

Answer:

a biotic factor это просто

Answer:

(A) AgOH(s) + NaNO3(aq)

Explanation:

correct on edge 2021

Answer:

a

Explanation:

Answer:

A. 6atm

Explanation:

Using pressure law equation:

P1/T1 = P2/T2

Where;

P1 = initial pressure (atm)

T1 = initial temperature (K)

P2 = final pressure (atm)

T2 = final temperature (K)

According to this question;

P1 = 3 atm

P2 = ?

T1 = 120K

T2 = 240K

Using P1/T1 = P2/T2

3/120 = P2/240

Cross multiply

240 × 3 = P2 × 120

720 = 120P2

P2 = 720/120

P2 = 6atm

Answer:

[tex]6.05211\times 10^{23}\ \text{atoms}[/tex]

Explanation:

Moles of carbon dioxide = 1.005 moles

[tex]N_A[/tex] = Avogadro's number = [tex]6.022\times 10^{23}\ \text{mol}^{-1}[/tex]

Number of atoms is given by

[tex]\text{Moles}\times N_A=1.005\times 6.022\times 10^{23}[/tex]

[tex]=6.05211\times 10^{23}\ \text{atoms}[/tex]

The number of atoms in the given amount of moles of carbon dioxide is [tex]6.05211\times 10^{23}\ \text{atoms}[/tex].

Answer:

26.88 L

Explanation:

When any gas is held under standard conditions, one mol will occupy 22.4 liters.

With the above information in mind, we can calculate how many liters would 1.20 moles of CH₄ gas occupy under standard conditions:

1.20 mol * 22.4 L/mol = 26.88 L

So 1.20 moles of CH₄ would occupy 26.88 liters.

Answer: 219 kJ

Explanation:

Answer:

In the context of transaction processing, the acronym ACID refers to the four key properties of a transaction: atomicity, consistency, isolation, and durability. Atomicity. All changes to data are performed as if they are a single operation