Is this right?
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Answer:

A system that allows energy and mass to move in and out of it.

APEX

A. A system that allows energy and mass to move in and out of it.

The correct definition of an open system is option A.

A system that permits both energy and matter (mass) to enter and exit is referred to as an open system. An open system is one in which energy and matter are exchanged with the environment, allowing the system to interact with and be affected by outside forces.

In opposition:

B. While energy cannot travel in or out of a closed system, mass can. Only energy, not matter, may be exchanged with the environment in a closed system.

C. An isolated system prevents the entry or exit of energy or mass. It does not interchange any energy or material with its surroundings because it is entirely self-contained.

D. It is uncommon to classify a system that permits energy to enter and exit but not mass. It defies the idea of an open system, where both energy and matter can enter and exit, and it does not reflect any particular kind of system.

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Answer:9

Explanation:

(3+8+10+15)/4 = 36/4 = 9

Answer:

cellular respiration

Explanation:

Organisms ingest large molecules, like carbohydrates, proteins, and fats, and convert them into smaller molecules like carbon dioxide and water. This process is called cellular respiration, a form of catabolism, and makes energy available for the cell to use.

Answer:

Ca2+

Explanation:

I took the test lol

Answer:

Ca2+

Explanation:

i just did the test

Answer:

no it is a heterogeneous mixture because salt and pepper are not mixed uniformly.

Answer:

d

Explanation:

Answer:

Hydrogen-1

Protium is the most abundant isotope of hydrogen.The abundances of protium, deuterium and tritium are 99.984%,0.016% and 10 to the power –15 respectively.

mass divided by volume

Answer: This may not work for you

Explanation: Density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.

a component or constituent of a whole or one of the parts into which a whole may be resolved by bricks and mortar are elements of every masonry wall.

Answer:

An essential part of something abstract.

Answer:

A volcanic eruption occurs when molten rock, ash and steam pour through a vent in the earth's crust. Volcanoes are described as active (in eruption), dormant (not erupting at the present time), or extinct (having ceased eruption; no longer active).

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100 percent one-half one-fourth three-fourths.

(got it off google sorry if it is wrong)

Answer:

all i know is that its not D ... good luck luv lol

Explanation:

Answer:

Feldspars

Explanation:

Hope this helps! :) x

Lewis acid is:

A. a substance that accepts electrons to form a covalent bond

A Lewis acid is accordingly any substance, for example, the H+ particle, that can acknowledge a couple of nonbonding electrons. At the end of the day, a Lewis acid is an electron-pair acceptor.

Thus, option A is correct.

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Answer:

A: a substance that accepts electrons to form a covalent bond.

Explanation:

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass of metal = 32 g

volume = 12 cm³

The density is

[tex]density = \frac{32}{12} = \frac{8}{3} \\ = 2.6666666...[/tex]

We have the final answer as

Hope this helps you

Answer:

2.67g/cm or 2.67g/cc

Explanation:

Given parameters:

Mass of KClO₃  = 125g

Unknown:

Total mass of the products = ?

When  KClO₃ is heated, it thermally decomposes to KCl and O₂ according to the chemical equation below;

               2KClO₃  →  2KCl + 3O₂

All chemical equations obeys the law of conservation of matter and with this regard, we know that the amount of reactants used is the same as that of the product.

The total mass of the products must give us 125g according to this law of conservation of matter.

Now to find the masses of each product,

     Number of moles  = [tex]\frac{mass}{molar mass}[/tex]

  molar mass of  KClO₃  = 39 + 35.5 + 3(16)  = 122.5g/mol

    So number of moles of KClO₃ = [tex]\frac{125}{122.5}[/tex]  = 1.02moles

    2. Now, using this number of moles, find the number of moles of the products using this value;

   2 moles of KClO₃ produced 2 moles of KCl

  1.02 moles of KClO₃ will also produce 1.02moles of KCl

   2 moles of KClO₃ produced 3 moles of O₂

   1.02 moles of KClO₃ will produce   [tex]\frac{1.02 x 3} {2}[/tex] mole = 1.53 moles of O₂

   3. Now find the masses of each product;

Mass  = number of moles x molar mass

  molar mass of KCl  = 39 + 35.5 = 74.5g/mol

  molar mass of O₂  = 16 x 2  = 32g/mol

  Mass of KCl  = 74.5 x 1.02  = 75.99g

  Mass of O₂  = 32 x 1.53 = 48.96g

Total mass of products = mass of KCl + Mass of O₂ = 75.99g + 48.96g

                                        = 124.95g

This value is approximately the same as that of mass of  KClO₃

Answer:

Hey mate

Explanation:

Yes these methods are only used in biology, chemistry, physics, geology and physcology.... They can't be used in maths or other subject, as it is said SCIENCE IS SCIENCE!

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210 cm converted into inches is 82.67716535 in.

Answer:

mass and volume are independent. Two objects with the same volume can have different masses hence they can have different densities

Explanation:

The mass of atoms their size and how they are arranged determine the density

Answer:

ARESENIC is in the 5A category

Explanation:

edge 2020

5A (Nitrogen group) elements tend to react to gain 3 electrons to be like noble gas.

5A group known as nitrogen group. In these group elements contains nonmetals, metals, halogens, noble gases and metalloids.

These elements react with oxygen to form acidic compounds.

Configuration of 5A group: 2s2 2p3, 3s2, 3p2

Example: nitrogen, phosphorus, arsenic etc.

Actinium (Ac) atomic number = 89 (it is a silvery radioactive metallic material. Actinium-227 is extremely radioactive element).

Arsenic (Ar) atomic number = 33 (it found in many minerals usually in combination of sulfur and metals but it also found in pure elemental crystal. It is a metalloid).

Rhenium (Re) atomic number = 75 (it is found in earth crust. It is used in additive to tungsten and molybdenum-based alloys. It is very toxic to humans it may causes skin related disease).

Therefore, 5A (Nitrogen group) elements tend to react to gain 3 electrons to be like a noble gas.

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Answer:

there is about 5110.01 hours in 7 months

Explanation:

because no 7 months in a row have the same amount of months so about 730.001428571 days in 7 months times the number of months. Hope this helps!

Answer: 730.08 hours x 7= will get you your answer

Explanation: Because, the average month is 30.42 days. A day is 24 hours, so the average month is 730.08 hours ( 30.42 days * 24 hours ).  Just do the math above and that should be your answer.

Answer:

It increases

Explanation:

The atomic radii increases because you are adding more shells/electrons

Answer:Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge

Explanation:

A proton has a mass of about 1 amu

Answer:

3d orbital is completely filled.

Explanation:

Answer:

Mass is a measure of how much matter an object contains, while weight is a measure of the force of gravity on the object. An object has the same composition, and therefore mass, regardless of its location.

Explanation:

Answer: got on xbox

Explanation: