During a chemical reaction, the______
is not fully consumed.
A)
ideal chemical
B)
excess reactant
C)
limiting reagent
D)
stoichiometric compound

Answer:

[tex] \frac{1839}{18} = 102.16[/tex]

Take 102.16 and multiply by avogadros #

and you get 6.33 × 10^25 otherwise A

Answer:

Answer is A

Explanation:

I just took this.

Answer:

B) Poor conductors

Explanation:

According to the characteristics of non-metals , non-metals are poor conductors of electricity and are mostly gases at room temperature and are also brittle.

An element is the simplest form of matter.Elements are further classified as metal,non -metals and metalloids. Non-metals  do not possess luster and are dull . They are not malleable and ductile and are soft due to the covalent bonding present in them . Non-metals  owing to their soft nature have low melting points.

As they have large intermolecular spaces they are mostly gases at room temperature and are also brittle due to the presence of weak bonding present in them.They  are poor conductors as they do not have mobile electrons.They have low tensile strength due to presence of covalent bonding.

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Answer:

1.2 mol N2 = 26.88 L

3 mol H2 =  67.2 L

0.5 mol CO2 = 11.2 L

10.3 L NO2 = 0.46 moles

67.2 L SO2 = 67.2 / 22.4 = 3 moles

89.6 L NO = 89.6 /22.4 = 4 moles

44.8 L NO2  = 92 grams

201.6 L H2 = 18 g

65 grams CO = 51.9 L

152 grams F2  = 89.6 L

Explanation:

1 mole of a gas occupies a volume of 22.4 L

(N = 14, O = 16, C = 12, H = 1, F = 19)

1.2 mol N2= 1.2 * 22.4 L = 26.88 L

3 mol H2 = 3 * 22.4 L = 67.2 L

0.5 mol CO2 = 0.5 * 22.4  L = 11.2 L

10.3 L NO2 =  10.3 / 22.4 L = 0.46 moles

67.2 L SO2 = 67.2 / 22.4 = 3 moles

89.6 L NO = 89.6 /22.4 = 4 moles

1 mole or 22.4 L of NO₂ has a mass of 46 g

44.8 L NO2 = (44.8 /22.4) * 46 grams = 92 grams

1 mole or 22.4 L of H₂ has a mass of 2 g

201.6 L H2 = (201.6 / 22.4) * 2 grams = 18 g

1 mole or 22.4 L of CO has a mass of 28 g

65 grams CO = 65/28 * 22.4 L = 51.9 L

1 mole of F₂ has a mass of 38 grams

152 grams F2 = 152/38 * 22.4 L = 89.6 L

Answer:

C(s)+CO₂(g)→2CO(g)

Explanation:

Basically you’re adding the compounds until they’re equal on both sides

Answer:

24.58 m/s

Explanation:

Given that,

Speed of an object = 55 mph

We need to find the equivalent unit in m/s

We know that,

1 mile = 1609 m

1 hour = 3600 s

So,

[tex]55\ mph=\dfrac{55\times 1609\ m}{3600\ s}\\\\=24.58\ m/s[/tex]

So, the required speed is 24.58 m/s.

M = 2 . 8 . 2

Valence Electron of M = 2

M ==>  M⁺²  +  2 e⁻

a. M⁺² +  OH⁻   ==>   M(OH)₂

b. M⁺² +  PO₄⁻³  ==>  M₃(PO₄)₂

Answer: c

Explanation: i think its right on edge

Answer:

Your average speed was 3.77 Miles per hour

Explanation:

Based on The Law of Conservation of Mass Lavoisier, the mass of oxygen required is 3,2 g

The two main postulates that was given by Antoine Lavoisier are, oxygen play an important role in combustion and the other is mass of the reactant and product is conserved. Therefore the mass of oxygen is 3.2 g.

According to Law of conservation of mass, mass can neither be created nor be destroyed. Mass can only be transformed from one form to another. The law of conservation of mass was given by Antoine Lavoisier.

Every reaction in nature follow the law given by Antoine Lavoisier that is mass is always conserved. Another postulated that was given by Antoine Lavoisier is the role of oxygen in combustion reaction. Combustion can not happen without presence of oxygen. According to Law of Conservation of Mass Lavoisier, the mass of oxygen required is 3.2 g.

Therefore the mass of oxygen is 3.2 g.

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Answer:

hot air rises and expanded the balloon

Explanation:

thats it.

Answer:

5.99

Explanation:

hope this helps you

Answer:

C. Both

Explanation:

When an Ecosystem changes the effects can be both positive and negative. It all really just depends on what the change is.

Answer:

8.33m/s

Explanation:

Given parameters:

Distance traveled  = 500m

Time taken  = 60s

Unknown:

Speed of the sound  = ?

Solution:

The speed the sound can be derived using the expression below:

 Speed  = [tex]\frac{distance}{time}[/tex]  

So;

    Speed  = [tex]\frac{500}{60}[/tex]    = 8.33m/s

Answer: 4

Explanation: if you move to spaces in a number line from 2 you would be at 4

Answer:

432cm³

Explanation:

Given parameters:

Length  = 12cm

Height  = 6cm

Width  = 6cm

Unknown:

V = ?

Solution:

We have been given that;

                    V  = L x W x H

So;

                 V  = 12cm  x 6cm x 6cm  = 432cm³

Answer:

That is correct.

Explanation:

Answer:

It's False

Explanation:

In a chemical reaction, reactants that are not used up when the reaction is finished are called excess reagents. The reagent that is completely used up or reacted is called the limiting reagent, because its quantity limits the amount of products formed.

Hope this helps you

Answer: false

Explanation:

Answer:

potassium chloride.

Answer:Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.

Explanation:This is not mine write it in your own words.

Answer:  " 13.5 g Al " ;

                    →  that is:  "13.5 grams of aluminum."

____________________________

Explanation:

____________________________

Note: What is missing from the question is the "balanced chemical equation" for the "chemical reaction" that contains:

 The reactants:  "aluminum (Al) " ;  and "chlorine (Cl) " ;  and:

 The product:    "aluminum choloride (AlCl₃) " .

____________________________

The "balanced chemical equation" is:

____________________________

        2 Al   +   3 Cl₂   →   2 AlCl₃   ;

_____________________________

Note: The molecular weight of "aluminum (Al)" is:   " 26.98 g /mol " .

____________________________

So:  We call solve using a technique known as:  "dimensional analysis" :

____________________________

  0.500 mol AlCl₃ * [tex](\frac{2mol Al}{2mol AlCl_{3} }) * (\frac{26.98g Al}{1 mol Al}) = ?[/tex]

____________________________

Note:  The units of "mol AlCl₃" cancel out to "1' ; and:

          The  units of "mol Al" cancel out to "1" ; and we are left with:

____________________________

 " [tex]\frac{(0.500 * 2 * 26.98)}{2}[/tex]   g Al ["grams of aluminum"] ;

____________________________

Note: We can "cancel out the "2's" ; since "2/2 = 1 " ; and we have:

 →  (0.500 * 26.98) g Al ;

    = 13.49 g Al ;

         →  Round to 3 (Three) significant figures;

         →  Since:  "0.500" has 3 (Three) significant figures:

____________________________

   =  13.5 g Al ; that is:  "13.5 grams of aluminum."

____________________________

 Hope this is helpful!  

      Best wishes to you in your academic pursuits—and within the "Brainly" community!

____________________________

Answer:

thi s is 4 ano

Explanation:

sjfdbbjjbfogfg

Answer:

the continental plate is bigger than the oceanic plate.

Explanation:

Answer:

thank you so much i really needed that

Explanation:

Answer:Through "gene escape" they can pass on to other members of the same species and perhaps other species. Genes introduced in GMOs are no exception, and interactions might occur at gene, cell, plant and ecosystem level. Problems could result if, for example, herbicide-resistance genes got into weeds. So far, research on this is inconclusive, with scientists divided - often bitterly. But there is scientific consensus that once widely released, recalling transgenes or foreign DNA sequences, whose safety is still subject to scientific debate, will not be feasible.

Explanation: i don't really know, don't come at me please

Answer:

Number of protons

Explanation:

There are three sub atomic particles. These are;

- Protons

- Electrons

- Neutrons

Among these three particles, only one determines the identity of the element. This is the Protons. The number of protons which is also called the atomic number determines the identity of an element. For instance, atom with one proton is Hydrogen and n other element can have atomic number of one.

Answer:

i believe its 5.2

Explanation: