Identify the acid, base, and salt in the following reaction

HNO3 + KOH —> H2O + KNO3

Answer:

In cellular respiration, complex molecules containing carbon react with oxygen to produce carbon dioxide and other materials. ... Matter is conserved during cellular respiration because atoms are conserved in physical and chemical processes

Explanation:

I hope this helps

Answer:

the volume of a give gas simple is directly propotional assolute temperature at constant pressure .the volume of a gavi. amount of gass is inversely propotional ot Its pressure when temperature is help constant

Answer:

12.8 moles

Explanation:

The formula for water is H2O, so for every mole of water, there are two moles of hydrogen and one mole of oxygen.

As the ratio of oxygen particles to water particles is one to one, 12.8 moles of oxygen are required to produce 12.8 moles of water.

Therefore, 12.8 moles of water are produced from 12.8 moles of oxygen (assuming hydrogen is available in excess).

Answer:

may be A, 8.43 × 10........ atoms of l

Answer:

These are Magnesium bromide is MgBr2. “ionic compounds.” When atoms join together, they form either molecules or ionic compounds, depending on whether they are joined by covalent bonds or ionic bonds. ... When atoms join together by ionic bonds, they form “ionic compounds”.

Explanation:

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Answer: Trust me 100% plz its loss of habitat wat they said

Explanation:

Answer:

-205.7kj

Explanation:

Now adding reaction 2 and twice of reaction 3 and reverse of reaction 1, we get the enthalpy of the reaction.

The expression for enthalpy for the following reaction will be,

where,

n = number of moles

Now put all the given values in the above expression, we get:

Therefore, the enthalpy of the following reaction is,  -205.7kj

the are 18.01528 grams

.....

Answer:

2Ca + O₂ → 2CaO

Explanation:

Cuando el Calcio (Ca) reacciona con oxígeno (O₂) se produce cal (CaO). La cal es un sólido inodoro de color blanco a grisáceo. La cal es un óxido que se encuentra presente en el cemento y su cuantificación permite determinar la calidad y el tipo de cemento a utilizar.

La reacción que describe el proceso anterior es:

Ca + O₂ → CaO

Para balancear los oxígenos, se deben poner 2 CaO como producto:

Ca + O₂ → 2CaO

Para balancear los calcios, se pone como coeficiente del Ca un 2:

Esta última es la reacción que describe el proceso anterior

. Consider a sample of oxygen gas at 27° C with a volume of 9.55L at a pressure

Answer:620 k

Explanation:

Answer:

A. light energy is used in photosynthesis and created by respiration

Answer:

energy

Explanation:

Answer: ...

Explanation:

Sodium, chlorine

Answer:

2Na = 2 Sodium [has 2 atoms]

Cl2 = Dichlorine (Chlorine) [has 2 atoms]

Is this what you wanted?? I'm not entirely sure if this is the answer you were looking for.

The scientific method is an empirical method of acquiring knowledge.

These are the 5 scientific methods:

Answer:

A

Explanation:

Answer:

B. Moderately active metal

Explanation:

Answer:

See explanation

Explanation:

1) The reaction of magnesium with oxygen is;

Mg(s) + O2(g) -----> MgO2(s)

The oxidizing agent is the reactant whose oxidation number decreases from left to right in the reaction equation. The oxidation state of oxygen decreased from zero to -2 hence oxygen is the oxidizing agent in the reaction.

2) The advantages of fuel cell includes;

i) it is a clean source of energy

ii) Fuel cells operate quietly and do not constitute noise pollution

One disadvantage of the fuel cell is that its operation is costly.

3) Electrolytic and voltaic cell are similar because they are both electrochemical cells and involve a transfer of electrons between two electrodes.

Electrolytic cells do not operate spontaneously while voltaic cells operate spontaneously. In the volatic cell the anode is negatively charged while the cathode is positively charged. In the electrolytic cell, the anode is positively charged while the cathode is negatively charged.

Answer:

1. 10

Explanation

when litmus paper is blue that means the solution is basic and 10 on the pH scale is the most basic out of all your options

Answer:

The second division switches parts of matching chromatids to increase genetic variation.

Explanation:

Meiosis and fertilization create genetic variation by making new combinations of gene variants (alleles).

Answer:

pH = 9.37

Explanation:

The reaction of HZ with NaOH occurs as follows:

HZ + NaOH → H₂O + Na⁺ + Z⁻

When the reaction is in the equivalence point, the moles added of HZ = Moles of NaOH.

At equivalence point, you will have in solution just NaZ that is in equilibrium with water as follows:

Z⁻(aq) + H₂O(l) ⇄ OH⁻(aq) + HZ(aq)

Where K of equilibrium is Kw / Ka = 1x10⁻¹⁴ / 2.4x10⁻⁶ = 4.17x10⁻⁹

And K is defined as:

K = 4.17x10⁻⁹ = [OH⁻] [HZ] / [Z⁻]

To solve this question we must find  [Z⁻] and as [OH⁻] and [HZ] comes from the same equilibrium, both are equal and we can find [OH⁻] in order to solve pH:

Moles NaOH added = Moles HZ:

0.010L * (0.39mol / L) = 3.9x10⁻³ moles HZ = Moles NaOH added

The volume of 0.200M NaOH must be:

3.9x10⁻³ moles * (1L / 0.200moles) = 0.0195L.

The moles of HZ = Moles Z⁻ after the reaction and the volume is 0.010L + 0.0195L = 0.0295L. Thus, [Z⁻] is:

[Z⁻] = 3.9x10⁻³ moles / 0.0295L

[Z⁻] = 0.132M

Replacing in K expression:

4.17x10⁻⁹ = [OH⁻] [HZ] / [Z⁻]

4.17x10⁻⁹ = [X] [X] / [0.132]

5.51x10⁻¹⁰ = X²

X = 2.35x10⁻⁵M = [OH⁻]

As pOH = -log [OH⁻]

pOH = 4.63

And pH is

pH = 14 -pOH

Answer:

The difference is due to the fact that one water molecule has two hydrogen atoms to one oxygen atom, as explained above. This means it takes two water molecules (2 H2O) to make one oxygen molecule (O2)

Explanation:

Answer:

In H20 does the 2 apply to Hydrogen

Explanation:

In H₂O there is two atoms of hydrogen and 1 atom of Oxygen

Hence, In H20 does the 2 apply to Hydrogen

-TheUnknownScientist

Answer:

For an electron they start at the first level (n=1) In order to move up to the next level (n=2) the amount of quantom energy to move to this next level the energy must be perfect in order to move. If the quantom energy is to small the electron it doesn't try.

Answer:

Generally, all atoms of elements contain three sub-atomic particles- Protons(Positively-charged), Neutrons(Neutral) and Electrons(Negatively-charged).

The Magnitude of the Positive Charge possessed by the Protons and the Magnitude of the Negative Charge possessed by the Electrons cancel each other, which make the atom electrically neutral.

Hence,

Without any electrons, the magnitude of the positive and negative charges wouldn't balance, and the atom would be unstable and disintegrate almost immediately. Hence, all stable atoms should have electrons revolving around them, where the number of protons and electrons are the same, under normal conditions.

To Conclude,

Every atom of an element will have electrons arranged in different shells, or matter couldn't exist without electrons.

Answer:

60g or 61.28g

Explanation:

Trust me on this I had the same problem as you

Answer:

Explanation:

molecules NH3 = 1.47 moles x 6.02x1023 molecules/mole = 8.9x1023 molecules of NH3