As frequency increases, the energy of the wave?

Answer:

4.17M

Explanation:

m1v1/m2v2=n1/n2

Answer:

Well i dk know this question i think we need soil because plants need soil so they can provide oxegon

Explanation:

Answer:

Experimental group

Explanation:

i hopes this helps let me know if im wrong:)

Answer:

If a solid is added to a liquid until no more of the solid will dissolve saturated solution is formed.

According to the concept of solubility, if a solid is added to a liquid until no more of the solid will dissolve saturated solution is formed.

Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.

The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.

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Explanation:

amount of baking soda = 2.01 g

---> 2.01 g NaHCO3 × (1 mol NaHCO3/84.007 g NaHCO3)

= 0.024 mol NaHCO3

mass of the product = 1.28 g

Possible reactions:

NaHCO3(s) ---> NaOH(s) + CO2(g)

0.024 mol NaHCO3 × (1 mol NaOH/1 mol NaHCO3)

= 0.024 mol NaOH × (39.997 g NaOH/1.mol NaOH)

= 0.96 g NaOH

2NaHCO3(s) ---> Na2O(s) + 2CO2(g) + H2O(g)

0.024 mol NaHCO3 × (1 mol Na2O/2 mol NaHCO3)

= 0.012 mol Na2O × (61.9789 g Na2O)

= 0.73 g Na2O

2NaHCO3(s) ---> Na2CO3(s) + CO2(g) + H2O(g)

0.024 mol NaHCO3 × (1 mol Na2CO3/2 mol NaHCO3)

= 0.012 mol Na2CO3 × (105.9888 g Na2CO3/1 mol Na2CO3)

= 1.27 g Na2CO3

Conclusion:

Based on the mass of the product in the crucible and comparing it with the predicted product mass in different reactions, I conclude that Na2CO3 is the most likely product in the crucible.

Answer:

81 L gas

General Formulas and Concepts:

Ideal Gas Law

Stoichiometry

Explanation:

Step 1: Define

[Given] 3.6 mols gas at STP

[Solve] volume (L) of gas

Step 2: Convert

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs.

80.64 L gas ≈ 81 L gas

Answer:

100 L

Explanation:

Use Boyle's Law, p1v1 = p2v2.

p1 = 4 atm

v1 = 50L

p2 = 2 atm

v2 = ?

p1v1 = p2v2

(4 atm) (50L) = (2 atm) (v2)

v2 = (4 atm)(50L) / (2 atm) = 100 L

Explanation:

asexual reproduction involves 1 parent and produces offspring that are genetically identical to each other and parent.

Sexual reproduction involves 2 parents and produces offspring that are genetically unique.

Answer:

See Explanation

Explanation:

a) In writing the balanced chemical reaction equation, the number of atoms of each element on the right hand side must be the same as the number of atoms of each element on the left hand side. The balanced reaction equation is;

2AgNO3(aq) + CaCl2(aq) ------> 2AgCl(s) + Ca(NO3)2(aq)

b) The total ionic equation shows all the ions present in the reaction system as follows;

2Ag^+(aq) + 2NO3^-(aq) + Ca^2+(aq) + 2Cl^-(aq) ---->2AgCl(s) + Ca^2+(aq) + 2NO3^-(aq)

c) The net ionic equation shows the ions that really participated in the reaction;

2Ag^+(aq) + 2Cl^-(aq) ---->2AgCl(s)

d) The spectator ions didn't undergo any change from left to right in the reaction equation. They include;

NO3^-(aq) and  Ca^2+(aq)

Answer:

the result is C and D. those are the ansers

Answer:C & D

Explanation:

Just took the test

Answer:

an earthquake

Explanation:

the tectonic plates rub together sending shockwaves

Answer:

Copper(II) oxide is a metal oxide that has the formula CuO. It has an ionic structure. It contains a copper(2+). Cupric oxide, or copper (II) oxide, is an inorganic compound with the chemical formula CuO.

Explanation:

I hope that helps you.

Answer:

9 protons

Explanation:

By looking at the periodic table, you will see that Fluorine has 9 protons. Since the number of electrons equal the number of protons, Fluorine has 9 electrons as well. Meanwhile, it's mass number of 19, minus 10 neutrons, gives you 9 protons or electrons. Hence, the atom would be Fluorine.

hope u make me brainlesst ʘ‿ʘ

Answer:

i think so for this i will 9 protons . atomic mass is 19. 10 neutrons

Answer:

2Cu2O + C --> 4Cu + CO2

Explanation

The Law of conservation of Mass states You can not destroy or create math in a chemical reaction, meaning you must have the same amount at the beginning and the end. This equation keeps the same amount of atoms on both sides.

Answer: Yes, it is a balanced equation.

Explanation:

https://chemequations.com/en/?s=Cu2O+%2B+C+%3D+Cu+%2B+CO2

This is where I got the answer so you know.  Hope this helps :)

Answer:  Therefore, to melt 2kg of ice 835. 48kJ of heat is required.

Explanation:

I hope this helps!

Answer:

1

Explanation:

Answer:

Normal cells are either repaired or die (undergo apoptosis) when they are damaged or get old. Cancer cells are either not repaired or do not undergo apoptosis.

Explanation:

Answer : A. 3

Explanation:

3Al(s) + 3O2(g) → 3Al2O3(s)

This is the right Answer :3

I hope you are having a great day :3

Answer:

6.941 u

Explanation:

Answer: northern hemisphere

Explanation: I looked it up. Plus I took a test with this question and when the teacher went over the answer i got it right.

Answer:

Option C (1.2 L) is the correct option.

Explanation:

The given values are:

Pressure,

[tex]P_1=1.9 \ atm[/tex]

[tex]P_2=3.8 \ atm[/tex]

Volume,

[tex]V_1=2.3 \ L[/tex]

[tex]V_2=?[/tex]

As we know,

The gas equation is:

⇒  [tex]PV=nRT[/tex]

At constant temperature,

⇒  [tex]P_1 V_1=P_2 V_2[/tex]

or,

⇒      [tex]V_2=\frac{P_1 V_1}{P_2}[/tex]

By substituting the values, we get

⇒           [tex]=\frac{1.9\times 2.3}{3.8}[/tex]

⇒           [tex]=\frac{4.37}{3.8}[/tex]

⇒           [tex]=1.15 \ L[/tex]

or,

⇒           [tex]=1.2 \ L[/tex]

Answer:

"When two or more elements combine to form more than one compound, the mass of one of them, which joins the fixed mass of the other, is in relation to whole numbers and simple" Example: The carbo

Answer:

[H+] = 1.66 x [tex]10^{-4}[/tex]

Explanation:

To find the [H+] concentration of a solution, we can use the formula:

[tex][H+] = 10^{-pH}[/tex]

Let's plug in the pH.

[tex][H+] = 10^{-3.78}[/tex]

Evaluate the exponent.

[H+] = 1.66 x [tex]10^{-4}[/tex]

Hope this helps!

Answer:

A. The samples contain the same substances in a variety of proportions.

Explanation:

Answer:

D

Explanation:

Because it has equal number of elements on each side of the arrow

Answer:

II would say there is co2 so i would say 30.4

Explanation:

Hope this helps

The correct balanced equation for hydrogen and oxygen reacting to form water is 2H₂ + O₂ ⇒ 2H₂O₂. Therefore, option B is correct.

Chemical equations are symbols and chemical formulas that depict a chemical reaction symbolically. Because mass cannot be generated or destroyed, according to the rule of conservation of mass, a chemical equation must always be in balance.

Equal numbers of atoms from various elements are present in both the reactants and the products in balanced chemical equations.

The left and right sides of the reaction arrow of a balanced equation have an equal number of each type of atom. The reactants and products are placed on the left and right sides of the arrow, respectively, to create a balanced equation.

Thus, The correct balanced equation for hydrogen and oxygen reacting to form water is 2H₂ + O₂ ⇒ 2H₂O₂. Therefore, option B is correct.

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