Which materials are used to make concrete select all that apply

Answer:

45.98 I believe if its wrong im sorry

Answer:

nonmetal

Explanation:

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Answer:

LETTER C it can apply a greater output force over a greater distance compared to the input force and distance

Explanation:

i just know cause im smart like that

Answer:

Ans: Dogs, cats, frogs, butterflies, mosquitoes, and many other animals reproduce by sexual reproduction. Animals have gonads, organs that produce egg or sperm.

Ans: your answer is in above

Ans: your Answer is in above

Answer:

896.5

Explanation:

You want to manipulate each equation individually.

First Equation: Keep it how it is, because N2 is the same in the final and 1st equation

Second Equation: Multiply the enthalpy by 4 because you want the H2Os to be equal

Third Equation: Switch the sign of the enthalpy because you want toe H2O2 on the other side of the equation, and multiply by 2 to match the coefficient

Answer:

this might be of help to u

Answer:

Stopwatch

Stopwatch is a time measuring tool.

Answer:

5 ms2

Explanation:

The acceleration of the ball is 5 ms2.

Acceleration is the rate at which an object's velocity with respect to time changes. It is a vector quantity to accelerate (in that they have magnitude and direction). The direction of the net force acting on an object determines the direction of its acceleration.

The acceleration of the car in its present direction of motion is referred to as a linear acceleration (or tangential acceleration in circular motions), and the passengers on board feel a force pressing them back into their seats as a result.

The acceleration that is used to change direction is referred to as radial acceleration (or centripetal acceleration in circular travels), and the reaction that the passengers feel is a centrifugal force.

Therefore, The acceleration of the ball is 5 ms2.

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Answer:

[tex]t \o \: know \: the \: answer \: [/tex]

[tex]refer \: to \: the \: attatchment[/tex]

Explanation:

Answer:

I = W/V

Explanation:

Comes from the Equation P=I*V where P is Power measured in Watts, I is Current measured in Amps and V is Voltage measured in Volts.

Answer:

Here to let the other person have brainliest!!! Enjoy randomer

Explanation:

Answer:

That's pretty easy,if you have a grasp of Elements, Compounds and their Symbols ans Molecular formula.

So, Let's get started!

Our reactions are as follows:

Think of a compound that has both Sodium and Chlorine and is very common.

Common salt — Sodium chloride!

Yeah, that's it! It has both Sodium and Chlorine in it's molecular formula. (NaCl)

Now, we have to, somehow, get Magnesium oxide using Oxygen. The best way is: by reacting Magnesium with Oxygen.

Now, we have to get two reactants that react to form Iron Sulfide.

FeS contains only two elements in its formula and that are: Iron(Fe) and Sulfur(S).

So, the best way would be to react Iron(Fe) and Sulfur(S) and get Iron Sulfide (FeS)

You must know that water is H2O, that is, a compound of Hydrogen and Oxygen, the easiest way to get H2O as your product would be : by reacting Oxygen and Hydrogen.

Answer:

a because the others whould cause earthquakes

Explanation:

Answer:

A

Explanation:

because i think is A (if is not im sorry )

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 4.42g of aluminum must react with 100 g of copper (ii) phosphate.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

mole =given mass ÷ molar mass

2 Al + 3 Cu[tex]_3[/tex](PO[tex]_4[/tex])[tex]_2[/tex] → Al[tex]_2[/tex] (PO[tex]_4[/tex])[tex]_3[/tex]+ 3 Cu

moles of copper phosphate= 100 g/380.58

                                               =0.26 moles

3 moles of copper sulphate need 2 mole of Al

0.26 moles of copper sulphate need (2/3)×0.26

                                                         =0.17moles

mass of Al= 0.17×26

                  =4.42g

Therefore, 4.42g of aluminum must react with 100 g of copper (ii) phosphate.

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Answer:

O 7.94 x 10-8 M

Explanation:

Did the test

The hydronium ion concentration of a solution with a pOH of 6.90 is 7.94 × 10⁻⁸ M.

Relation between the pH and pOH will be represented by the below equation as:

pH + pOH = 14

Given that pOH = 6.90

So, pH = 14 - 6.90 = 7.1

Also we know that, pH = -log[H⁺]

[H⁺] = [tex]10^{-pH}[/tex]

[H⁺] = [tex]10^{-7.1}[/tex]M

[H⁺] = 7.94 × 10⁻⁸ M

Hence the concentration of hydronium ion is [tex]10^{-7.1}[/tex] M.

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The answer is the last option, Zn + S ➡️ ZnS.

Explanation:

Flipping a light switch to turn on a light means that the circuit with the light is being closed. When the switch is flipped the opposite way, to turn the light off, the circuit is being opened.

Answer:

You now have an open circuit

Explanation:

The circuit is closed when the switch is flipped the other way to turn off the light.

Answer:

Magnesium Chloride is used as a precursor magnesium metals.

Explanation:

he interaction between a baseball bat and a baseball

Answer:

Because the exact position of the electron is not known,it must be assumed that the electron takes up the entire space in an orbital.

Explanation:

Answer:

2. d

3. i

4. e

5. j

6. g

7. a

8. f

9. b

Explanation:

do a few searches when you have time to deepen understanding!

you have to drink a lot of water and 67890

The electron configuration for the ion's neutral parent atom is

1s²2s²2p⁶3s²3p⁶4s²

It belongs to group 2 on the periodic table and one of its chemical properties is, it has a density of 1.54 g/cm³

From the question,

The cation has a charge of 2+. This means the neutral atom lost 2 electrons.

From the given electron configuration, the cation has 18 electrons.

Therefore, the neutral atom of ion will have 20 electrons.

∴ The electron configuration for the ion's neutral parent atom is

1s²2s²2p⁶3s²3p⁶4s²

The atom belongs to group 2 on the periodic table.

One chemical property of the parent atom

Its density is 1.54 g/cm³

Hence,  The electron configuration for the ion's neutral parent atom is

1s²2s²2p⁶3s²3p⁶4s²

It belongs to group 2 on the periodic table and one of its chemical properties is, it has a density of 1.54 g/cm³

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Answer:

Skittles are coated with sugar and food coloring. When you add warm water to the Skittles, the sugar and food coloring start to dissolve. They have similar amounts coated on them so they dissolve at similar speeds and stay in their lanes.

The sugar is moving to areas of water with lower sugar concentration. If the water is poured in the center, this is happening for each Skittle at relatively the same speed.

Explanation:

Answer: Certain physical constants (e.g., melting point, boiling point, density, refractivity, solubility) can be found in the literature for many compounds, whereas others (e.g., specific rotation) are characteristic of different groups of compounds and are known for almost all of them.

Explanation:

Answer:

50%, pups haven't solidfur

2. DOMINANT FF IS NOT POSSIBLE

Answer:

the answer is mabye 30 I didnt understand