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Answer:

Steps explained below

Explanation:

To explain balancing of chemical equations, I will make use of an example equation where Hydrogen and oxygen react to form water.

H2 + O2 = H2O

Now, the equation I've listed above is an unbalanced chemical equation. It can be balanced by the following steps;

Step 1: Identify the elements on both the left Hand side and the right hand side.

In this case;

on the left hand side, we have H and O.

On the right hand side, we have H and I also.

Step 2: Identify the number of atoms of each element on both the left and right hand sides.

On the left, H has 2 atoms and O has 2 atoms.

On the right, H has 2 atoms and O has 1 atom.

Step 3: For the equation to be balanced, the number of atoms of each element on the right and left hand side must be the same.

Thus,

O on the left hand side has 2 atoms but on the right hand side it has 1 atom. Thus, we will multiply O on the right by 2 to balance what we have on the left.

So, we now have;

H2 + O2 = 2H2O

Step 4: Check equation: We now have;

H2 + O2 = 2H2O

Our left hand side remains 2 atoms of H and 2 atoms of O. But on the right, we now have;

2 atoms O and 4 atoms of H.

Which means atoms of H is not balanced with the left side.

Step 5: rebalance equation: To rebalance, we multiply H on the left by 2 to give us 2 × 2 = 4 atoms.

Thus, we now have;

2H2 + O2 = 2H2O

Answer:

Representation of chemical reactivity by symbols follows two absolute rules:

Explanation:

1

.

 Mass is conserved.

2

.

 Charge is conserved.

What do we mean by this? If we start with 10 g of reactant FROM ALL SOURCES, AT MOST we can get 10 g of product; and in practice we are not even going to get that. Since mass is a fundamental property of atoms and molecules it follows that atoms and molecules are conserved in EVERY chemical reaction.

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Because it is not balanced (why not?), we can reject it out of hand, because we know that it does not reflect reality.

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80 g of reactant gives 80 g of product

...charge and mass are balanced here. And so this is a reasonable representation of reality.

I know I am being absolute when I say that charge and mass are conserved, but this reflects EVERY CHEMICAL REACTION, EVERY EXPERIMENT EVER PERFORMED: when a reaction is studied in detail,  

garbage out has always equalled garbage in.

And how do we know that masses are conserved; that stoichiometry operates? How else but by experiment? How else but by extensive and quantitative study of particular chemical reactions?

Every chemical reaction ever performed (and as far we know, TO BE PERFORMED), displays conservation of mass. And today we have a particle view of chemical reactivity, and our ideas, developed over only some 200-300 years, insist that matter is conserved. That molecules and atoms themselves have discrete masses, which are certainly measurable, supports our notion of conservation of mass.

This idea can be extended to the representation of redox reactions, where we can invoke the electron as a charged particle that is exchanged between species in a redox process. Charge is conserved, as well as mass.

If this all seems a lot to take in, remember you will only be asked to balance equations to which you have already been introduced. Alkanes combust in air to give carbon dioxide and water, iron combines with oxygen to give rust,  

If you can write a chemical equation that balances mass and charge, you have proposed a reasonable chemical pathway. See here for redox equations.

Explanation:

Answer:

Find the length of side x in simplest radical form with a rational denominator.

Answer:

The answer is C

radioactive elements can decay into stable or unstable elements.

Answer:

vfv

Explanation:

Answer:

boyle's law

Explanation:

Answer: The concentration of hydrogen ions in the given solution is [tex]6.2 \times 10^{-4}[/tex].

Explanation:

Given : pH = 4.32

pH of a substance or solution is the negative logarithm of hydrogen ion concentration.

[tex]pH = - log [H^{+}][/tex]

Substitute the value into above formula as follows.

[tex]pH = - log [H^{+}]\\= - log (4.32)\\= 6.2 \times 10^{-4}[/tex]

Thus, we can conclude that the concentration of hydrogen ions in the given solution is [tex]6.2 \times 10^{-4}[/tex].

Answer:

E i is like Math so I think this will help you

Answer:

I don't really get your question but I think my answer relates to your question :)

Explanation:

Due to the high availability of sunlight, sea grass can get the sufficient light energy to carry photosynthesis and storage of energy.

Photosynthesis is a biochemical process by which green plants synthesis energy and in the leaves by the aid of light energy. Here, the light energy is converted to chemical energy.

Plants need sunlight for the light reaction of photosynthesis. In the absence of sunlight, they cant synthesis energy and the chlorophyll does not get active. They will grow towards sunlight.

The sea grass are getting sufficient light energy for the synthesis of energy. The energy storage molecules ie. ATP in sea grass will be synthesized in higher rate with the presence of sun shining.

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Answer:

29.4mol

Explanation:

Using mole = mass ÷ molar mass

Molar mass of HF (hydrogen fluoride) = 1 + 19 = 20g/lol

Using the formula;

Mole = mass/molar mass

Mole = 588/20

Mole = 29.4mol

Answer: 1 molar NaOH contains 40 grams of NaOH per every liter of water

Explanation:

so 2 M NaOH contains twice that amount, ie. 80 grams per liter. Then, ine 250 ml of weater, there should be 80/4 = 20 grams of solid NaOH dissolved.

Answer:

Electrons

hope it helps

Water cannot dissolve all substances that are made from ionic bonds probably because some ionic bonds are too strong for the attractions of water molecules to pull them apart.

However, some ionic bonds formed from ions of elements are unable to be dissolved by water and this is probably attributed to the fact that those bonds are too strong to be pulled apart by water molecules.

Learn more about at ionic compounds at: https://brainly.com/question/9167977

Answer:

nope its a myth don't worry :)

Answer: Atm

I took a test and got it right.

Answer:

An allotrope is one way that atoms can be arranged in a solid. An isotope is one way that protons and neutrons can form the same atomic element.

Answer: H2O

Explanation: pure H2O does not contain ions which could

Transfer charge. Other substances in water solution forms ions.

Explanation:

To calculate the heat released in the reaction, we use the formula-

Q = m×c×Δt

Where

Q - The heat energy

m - the mass of the object/substance being heated

c - the specific heat of the object/substance being heated

Δt -  the change in temperature in °C

Answer:

1 mole of Helium is answer

Answer:

That is, water has a high heat of vaporization, the amount of energy needed to change one gram of a liquid substance to a gas at constant temperature. Wate

Explanation:

Answer:

1.Exhaust from farming machines pollutes the air

2.Cows give off methane gas that gets into the atmosphere

3.The land the farm was cleared away on effects other recosystems

Explanation:

Farming adversely affected the earth systems such as climate change, deforestation, biodiversity loss, irrigation problems, pollutants, soil degradation, and waste production.

Agriculture causes a number larger of environmental issues that cause environmental degradation such as climate change, deforestation, biodiversity loss, irrigation problems, pollutants, soil degradation, and waste production.

For example, exhaust from farming machines pollutes the air, Cows give off methane gas that gets into the atmosphere and the land the farm was cleared away on effects other ecosystems.

So we can conclude that farming adversely affected the earth systems such as climate change, deforestation, biodiversity loss, irrigation problems, pollutants, soil degradation, and waste production.

Learn more about farming here: https://brainly.com/question/17392167#

Answer: Organic acids form when a carboxyl group (−COOH) is substituted for one of the hydrogen atoms in a hydrocarbon.

Answer:

20.7 g NH3

Explanation:

Convert to moles of N2:

(17.0 g N2) / (28.02 g/mol N2) = 0.607 moles N2

Convert to moles of NH3:

(0.607 moles N2)(2 moles NH3 / 1 mole N2) = 1.213 moles NH3

Convert to grams of NH3:

(1.213 moles NH3)(17.03 g/mol NH3) = 20.66 g NH3

Answer:

Tendons connect the skeletal system to the muscular system by attaching muscle to bone. When muscle contracts, the tendon acts on the bone, causing movement. Joints, the point at which two or more bones connect, can be fixed, slightly movable, or freely movable.

Answer:

when the electron moves from the first orbit to the third it gains energy  but when it jumps from a higher energy orbit to a lower the energy is being radiated. So whihever is the higher energy you know what it is.

Explanation:

Answer: So  ever is the higher energy you know what it is.

Explanation:

Answer:

7500 mmHg

Explanation:

From the question,

Applying Boyles Law,

PV = P'V'................ Equation 1

Where P = original pressure, P' = final pressure, V = Original Volume, V' = Final Volume.

make P' The subject of the equation

P' = PV/V'.............. Equation 2

Given: P = 650 cm³, P = 750 mmHg, V' = (650×10/100) = 65 cm³ (Reduced by 10 percent of it original volume)

Substitute these values into equation 2

P' = (650×750)/65

P' = 7500 mmHg

Answer:

Nerve cells in the hypothalamus make chemicals that control the release of hormones secreted from the pituitary gland. The hypothalamus gathers information sensed by the brain (such as the surrounding temperature, light exposure, and feelings) and sends it to the pituitary.

Explanation:

Answer:

Explanation:I hope it help:)

Instead of being utilized horizontally, the Liebig condenser is frequently tilted because this promotes greater cooling and circulation of the cooling fluid.

A popular condenser used in chemistry to cool and condense heated vapor or gas into liquid form is the Liebig condenser.

It is constructed with an inner tube that allows hot vapor or gas to pass through and an outer jacket that allows cooling fluid, such water, to flow through in order to condense the vapor or gas.

Slanted condensers allow cooling liquid to pass through the outer jacket more freely, improving heat transfer and increasing cooling effectiveness.

Therefore, it provides for better cooling and circulation of the cooling fluid, the Liebig condenser is often utilized in a tilted position as opposed to a horizontal one.

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Answer:

I Don't Know.

Explanation: I'm Sorry, But I'm Not Good At This Subject. Atleast I'm Being Honest.

Answer:

176 g/mol

Explanation:

To get this, multiply the weight of the molecule by Avogadro's number:

(2.93×[tex]10^{-22}[/tex]) × (6.022×[tex]10^{23}[/tex]) = 176.44 g/mol