What mass of oxygen reacts during the incomplete combustion of 18.0 g of propane?

Answer:

1. Gases may be compressed

2. Gases expand when less pressure is applied.

3. Gases can be mixed.

4. Gases exert a constant pressure on its container walls.

5. Gases have low densities.

Answer:

grpup

Explanation:

napagaralan namin yan

Answer: your answer is A

Explanation: the atoms has the same properties of the same element as the atomic number.

Answer:

C

chemical reaction .

Answer:

C

Explanation:

Chemical reaction.

Explanation:

The answer is A b/c

the polyatomic SO4² have 2 valance electron,also

the metal X also have 2 valance electron so,They cancel each other

In an ecosystem, the  physical characteristics of an organism are genetically passed down  from one generation to another.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Answer:

C1V1=C2V2

C1 is 2.0mol/l

V1=?

C2=.4mol/L

V2=100ml or for this 0.1L

V1 is 20ml

Best way to prepare this is to measure out 20ml of the 2 molar solution and add 80mL to it to get to 100mL

Explanation:

Answer:

B₃Si

Explanation:

Let's take  break it down. From triboron silicide;

Tri - Three

Triboron - Three boron atoms

Silicide - Silicon (with an -ide suffix)

The formular is given as;

B₃Si

Answer:

43.76 g = 0.04376 Kg

Explanation:

The equation of the reaction is given as;

H2 + Cl2 --> 2HCl

From the equation;

1 mol of Cl2 produces 2 mol of HCl

Converting to mass;

Mass = Number of mol * Molar mass

Cl2;

Mass = 1 mol * 70.906 g/mol = 70.906 g

HCl;

Mass = 2 mol * 36.458 g/mol = 72.916 g

This means;

70.906 g of Cl2 produces 72.916 g of HCl

x g of Cl2 would produce 45g of HCl

70.906 = 72.916

x = 45

x = 45 * 70.906 / 72.916

x = 43.76g

Answer:

its called TAXON0MY

Explanation:

they are classified in eight steps namely doma!n, k!ngdom, phylum, class, order, family, genus, and spec!es

but sometimes we do not include doma!n

if you want to name an organism you use both the genus group and the spec!es group

Example:

The scientific name for humans like us is h0m0 sap!ens

H0m0- This is our genus group

sap!ens- This is our spec!es group

sorry for using the exclamation mark it means i

Answer:

The modern system of classification is a hierarchy with eight levels. These levels are domain, kingdom, phylum, class, order, family, genus, and species. There are three domains and six kingdoms in the modern system.

Explanation:

Answer:

No se bro cual se la respuesta .......

Explanation:

lo siento(

Answer:

A

Explanation:

I'm doing that rn and that's the answer

Answer:

Explanation:

follow the rule of "a weak acid can't make a stronger acid and weak base can't make a stronger base(it's pretty accurate for acid/salt reactions/replacemnts)" the last reactions won't work, but the second to last one will be kbr+pb(no3)2-> kno3 + PbBr2 (this is unballanced.) the first reaction will work. the second one i'm not too sure tbh, but i think it won't work since barium hydroxide's a weak base and if it were to react it would make koh, a super strong base

Answer:

3Ba(OH)2 + 2K3PO4 ----> 6KOH + Ba3(PO4)2

2KBr + Pb(NO3)2  ------> 2KNO3 + PbBr2

H3PO4 + 3KCl -----> K3PO4 + 3HCl

Explanation:

Explanation:

2HCl+2Zn----> 2ZnCl+H2

Explanation:

HCL + Zn= zncl2 + H2

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0.143 moles is the volume of 104 g of ethine under normal conditions

Answer:

it readily gains another electron. the outer electron shell is closer to the nucleus, than iodine for example, which makes it less shielded (greater attraction for another electron = violent reaction to get it)

Explanation:

Answer:

definite volume. indefinite shape

Answer:

Red

Explanation:

Definite volume, indefinite shape

Answer: 182.87 grams of hydrogen are necessary to react completely with 853.42g of nitrogen.

Explanation:

The balanced chemical reaction is :

[tex]N_2+3H_2\rightarrow 2NH_3[/tex]

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]  

[tex]\text{Number of moles of nitrogen}=\frac{853.42g}{28g/mol}=30.479moles[/tex]

According to stoichiometry:

1 mole of [tex]N_2[/tex] react with = 3 moles of [tex]H_2[/tex]

30.479 moles of [tex]N_2[/tex] will react with=[tex]\frac{3}{1}\times 30.479=91.437moles[/tex] of [tex]H_2[/tex]

 Mass of [tex]H_2[/tex] =[tex]moles\times {\text {Molar mass}}=91.437mol\times 2g/mol=182.87g[/tex]

Thus 182.87 grams of hydrogen are necessary to react completely with 853.42g of nitrogen.

Answer:

The answer is A.

Explanation:

In periodic table, group 1 (1st column) are Alkali metals and group 2 (2nd column) are Alkali Earth metals.

Answer:

i hope its help you

Explanation:

and goodnight,goodevening,goodmorning

Answer:

medium in which it is traveling

Explanation:

i hope it helps u

Answer:

B

Explanation:

Ne has 10 electrons.

so the first shell will takes 2 (10-2=8)

the second shell will take 8 (8-8=0)

Explanation:

The molecules in water is more tightly packed than in ice, so water has greater density than ice.

Answer:

Explanation:accurate but not precise

Answer:

the transfer of energy because eating is gaining energy from a source, so the energy from that source is being transfer to the animal.

The transfer of energy is achieved when eating and feeding exists. Chemical processes may emit or absorb chemical energy.

The ability of a physical process to carry out work is known as energy. It's crucial to remember that simply because energy exists doesn't indicate that it is always ready to do tasks. Thermal energy, sometimes known as heat, is generated when atoms or molecules move. It may be thought of as temperature-related energy.

This energy results from the location of an item. For instance, a ball resting on a table possesses potential energy in relation to the ground because of the influence of gravity. Chemical processes may emit or absorb chemical energy. It is created by atoms and molecules establishing or breaking chemical bonds.

Therefore, the transfer energy is achieved when eating and feeding exists.

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Answer:

it has 6?

Explanation:

The answer should be 6