Anything that has mass and takes up space

Answer:

it's double displacement reaction

Answer:

Double displacement reaction ( Metathesis)

Answer:

A + B → AB:  

✔ synthesis

AB → A + B:  

✔ decomposition

Hydrocarbon + O2 → CO2 + H2O:  

✔ combustion

AB + CD → AD + CB:   replacement

Explanation:

Answer:

15 moles of hydrogen gas are needed to react with 15 moles of chlorine gas.

Explanation:

The balanced reaction is:

H₂ (g) + Cl₂ (g) → 2 HCl (g)

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of the compounds participate in the reaction:

Then you can apply the following rule of three:  If 1 mole of Cl₂ reacts with 1 mole of H₂, 15 moles of Cl₂ with how many moles of H₂ does it react?

[tex]moles of H_{2} =\frac{15 moles of Cl_{2} *1mole of H_{2}}{1moles of Cl_{2}}[/tex]

moles of H₂= 15

15 moles of hydrogen gas are needed to react with 15 moles of chlorine gas.

Answer:

the answer is 1- loses

Explanation:

When water freezes it gives up some of the water's energy.

Answer: Cesium is more reactive toward water than lithium because the ionization energy decreases down the group reactivity increases down the group.

Explanation: Please mark me as brainliest and i hope that helped!

Answer:

d = 2.62 g/cm³

Explanation:

Given data:

Density of object = ?

Mass of object = 34 g

Volume of object = 13 cm³

Solution:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

By putting values,

d = 34 g/ 13 cm³

d = 2.62 g/cm³

Answer:

ok

Explanation:

Answer:

Yes it is balanced

Explanation:

You can check by finding the total of each element on both sides so:

Left Hand Side :

Carbons: 6

Oxygens: 6x2 (carbon dioxide) and 6 (water) so there are 18

Hydrogens: 6x2 (carbon dioxide) so 12

Right Hand Side:

Carbons: 6

Oxygens: 6 (glucose) then 6x2 (oxygen) so there are 18

Hydrogens: 12

Answer:

c.Elements in the compound shares electrons

Explanation:

Because in ionic compounds element lose or gain electrons only

Sharing of electrons is the property of covlant compounds.

reactants because it had other chemicals, when more are mixed it will be more stronger.

It is the correct answer

Answer:

The Kelvin temperature scale is the scale that is based on molecular motion and so absolute zero is also called 0K.

Explanation: The Kelvin temperature of a substance is directly proportional to the average kinetic energy of the particles of the substance.

Answer:

1/16 is the answer.........

Steel wool rusts faster because more Surface Area is exposed in a steel wool compared to the iron nail and more surface area means faster rusting rates

have a nice day! (^o^)

Answer:

No

Explanation:

A compound is when two different elements join. The model only shows two similar elements, which form a molecule, not a compound.

Answer:

Ca(OH)2 + Cl2 → CaOCl2 +H2O.

Explanation:

Updated answer

Answer:

this is balanced equation

Answer:

I hope it helps you

Explanation:

As force will be its Weight  hence ,

Force = Weight

Force = m*g

As given ,

m=60kg  and g= 9.8 m/sec^2

hence putt the values in above formula we get,

F=60*9.8

F= 588 N

please  

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F=mg

F = 60 ×9.8

F = 588 N

Explanation:

I hope it's helps you

Answer:

Explanation:

evaporation

The concentration of solution : 0.2 M

Given

5.6 g Potassium hydroxide(KOH)

500 ml of solution = 0.5 L

Required

The concentration

Solution

Molarity shows the number of moles of solute in every 1 liter of solution or mmol in each ml of solution

[tex]\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}[/tex]

MW KOH = 39+16+1=56 g/mol

mol solute(KOH) :

= mass : MW KOH

= 5.6 : 56 g/mol

= 0.1

Molarity :

= 0.1 : 0.5

= 0.2 M

Explanation:

Andrews, 4/15/2019 – Cells and Structure of Life Lab Report. Objective(s): In your own words, what was the purpose of the lab? The purpose of this lab was to explain, show, and gather evidence of the cell theory. Procedure: 1.

2021:  Cells and Structure of Life Lab Report. Objective(s): In your own words, what was the purpose of the lab? The purpose of this lab was to explain, show, and gather evidence of the cell theory. Procedure: 1.

Answer:

Because they don't need them , cell wall which are found in cell, maintain cell shape almost as if each cell has it's own exoskeleton ame this them to stand upright without the need for bones .

Explanation:

Answer:

Compounds containing two elements (so called binary compounds) can either have ionic or covalent bonding. If a compound is made from a metal and a non-metal, its bonding will be ionic. If a compound is made from two non-metals, its bonding will be covalent.

Explanation:

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Answer:

Between -195°C to -215°C

Explanation:

We begin from this data:

P under -220°C will be solid, because -220°C is the freezing point.

Above -220°C, P will be at liquid state.

Then -185°C is the boling point, so above that temperature we have P as a gas.

Between -175°C to -210°C

Above -185°C we said that P is gas, so at -175°C P is not liquid. This state is F.

Between – 190°C to -225°C

At -190°C, we can have P as liquid, but -225°C is under -220°C, where P changes from liquid to solid. Then, this state is also F.

Between -200°C to -160°C

Above -185°C we said that P is gas, so at -160°C P is not liquid. This state is also F. The same, as the first situation.

Between -195°C to -215°C

-195°C is a lower temperature than -185°C. P is still liquid, we did not get the boiling point yet. -215°C is higher than -220°C, P is also liquid. There are still 5°C until P completely freezes. This is the correct choice.

Answer:

1.44 g

Explanation:

We can solve this problem if we keep in mind the law of conservation of mass, which states that if 4 grams of a compound reacted completely, then the sum of the products has to be 4 grams as well.

We solve for x:

So the answer is 1.44 g.

Answer:

C. 24 mol

Explanation:

To say it quickly, 6 moles of C3H8 times 4 moles of HCl is 24. 32 moles of Cl2 times 4/4 moles HCl is 32. Therefore 24 is the correct answer.

Answer:

20.93%

Explanation:

The percent by mass (%mass) of water in the following compound can be calculated thus:

%mass of H2O = mass of 2H2O/mass of compound × 100

Where;

Ca = 40

S = 32

O = 16

H = 1

Hence, the molar mass of CaSO4•2H20 = 40 + 32 + 16(4) + 2{ 1(2) + 16}

= 40 + 32 + 64+ 2{18}

= 172g/mol

Molar mass of 2H2O = 2{2 + 16}

2(18)

= 36g/lol

Therefore, the percent by mass of 2H2O in CaSO4•2H20 is as follows:

36/172 × 100

= 0.2093 × 100

= 20.93%

Answer:

98.76 g

Explanation:

Use the formula mass=moles x MM :)

The mass of .89 moles of calcium chloride, used as an ice-melter is 98.76g.

A body's mass is an inherent quality. Prior to the discovery of the atom and particle physics, it was widely considered to be tied to the amount of matter in a physical body.

The amount of matter that makes up every object or body is the greatest way to understand mass. Everything that we can see has mass. Examples of objects with mass include a table, a chair, your bed, a football, a glass, and even air. The mass of a thing determines whether it is light or heavy.

Simply put, mass is a measurement of a body's amount of matter. Matter is everything that has both volume and mass. Although mass cannot be seen, it can be measured or quantified.

mass = moles x MM

= 0.89 × 110. 98 g⋅mol

= 98.76 g

Thus, The mass of .89 moles of calcium chloride, used as an ice-melter is 98.76g.

To learn more about mass, follow the link;

https://brainly.com/question/19694949

#SPJ2

Answer:

d ;)

Explanation:

Answer: D.monosaccharides, disaccharides, polysaccharides

Explanation:

Answer:

The difference between an atom and an ion has to do with net electrical charge. An ion is a particle or collection of particles with a net positive or negative charge. ... A stable atom contains the same number of electrons as protons and no net charge. When electrons are added or removed, the stable atom becomes an ion.Apr 12, 2015

Explanation:

hope this helps ✌️

Answer:

570

Explanation:

a centigram is a gram times 100

So you do 5.7 times 10 and you get 570

Answer:

5 gsk

Alei

Explanation:

Bonjour comment tu

Answer:

umm whats the question??

Explanation: