Please helppp asapppp due soon ignore the answers i put in their wrong

Please Helppp Asapppp Due Soon Ignore The Answers I Put In Their Wrong

Answers

Answer 1
1. Cu + 2AgNO3 ==> 2Ag + Cu(NO3)2 ... balanced equation. This is both a single replacement reaction and an oxidation reduction reaction.
Moles of Cu present = 19.0 g Cu x 1 mole Cu/63.55 g = 0.2990 moles Cu
Moles AgNO3 = 125 g AgNO3 x 1 mole AgNO3/169.9 g = 0.7357 moles AgNO3
Which reactant is limiting? It will be Cu because the mole ratio is 2 AgNO3 to 1 Cu and there is more than enough AgNO3. Thus, amount of Ag formed will depend on moles of Cu (0.2990)
Moles of Ag formed = 0.2990 moles Cu x 2 moles Ag/mole Cu = 0.598 moles Ag
Mass (grams) of Ag formed = 0.598 moles Ag x 107.9 g/mole = 64.52 g = 64.5 g of Ag (3 sig. figs.)

Related Questions

look at the chemicals listed below and answer the questions . iron
water
sand
oxygen
gold
carbon dioxide
helium
carbon
rust
seawater
1. Name the two metals
2.Name a gas that is not an element
3.Name a mixture
4.Name a non metallic element that is a solid .​

Answers

Answer:

1. gold and rust

2. carbon dioxide

3. sea water

4. carbon

Answer:

1. Gold and Iron

2. Helium

3. Seawater

4.Rust

Explanation:

Potassium is a silvery-white, solid metal. Chlorine is a greenish-yellow gas. When these two elements react chemically, they yield potassium chloride which is an odorless salt with a crystal structure. Potassium chloride is used in the production of fertilizer.

Required:
Which part of atomic structure is responsible for the reactivity of atoms?

Answers

the number of electrons in the outermost shell deduces it’s reactivity

The electrons present in the valence shell of an atom are responsible for the reactivity of atoms.

What is an atom?

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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HELP!!!!
Which of the following has the smallest electron affinity?
а К
b Ca
C Li
d Na
e Mg

Answers

Answer:

e. Mg.

Explanation:

Answer:

[tex]mg[/tex]

is the answer to your question

What are 2 substances that will NOT conduct electricity? Plz explain.

Answers

diamond for example, will not conduct electricity as there are no mobile ions or electrons to carry electric charge. all the electrons in the carbon atoms in diamond are used for covalent bonding.

another example is chlorine gas, there are also no mobile electrons to carry electric charge.

most covalent compounds cannot conduct electricity, but most ionic and metallic can. however, there are exceptions of course!

Answer:

Covalent compounds (solid liquid solutions)  

non-metal elements are insulators but not conductors of electricity.

Explanation:

Metal elements and carbon (graphite) are conductors of electricity

How many grams of copper would you need to produce 50.0g of silver? 1 Cu + 2 AgNO3 ----> 2 Ag + 1 Cu(NO3)2

Answers

cu-Mg is slivers d,jK

what can cats get from eating mice and moles?

Answers

Answer:

its called Toxoplasmosis.

Explanation:

Cats become infected by Toxoplasma gondii by ingesting the cysts of this parasite. Most often, this occurs when cats eat mice or rats infected with the parasite. However, they can also ingest it during grooming after coming in contact with infected soil or feces.

hope it helped ;)

2. Is the following sentence true or false? Most earthquakes generate
tsunamis.

Answers

Most earthquakes have the ability to cause earthquakes, but it really depends on where the earthquake is. But yes that’s true.

what can scientists gain clues about by analyzing the speed at which seismic waves travel?

Answers

By measuring the time it takes for seismic waves to travel along many different paths through the earth, we can figure out the velocity structure of the earth. Abrupt changes in velocity with depth correspond to boundaries between different layers of the Earth composed of different materials.Sep 24, 2012

PLEASE HELP ME ON THIS ​

Answers

Answer:

The conductance will increase as the concentration of the electrolyte is increased.  

Explanation:

The ions are what carry the charges from one electrode to another.  The more there are, the easier it is for electrons to get across the solution of electrolyte,

The science of measuring chemicals that go into and come out of a reaction is called
O meteorology
O atomic mass measuring
O molar metrology
o stoichiometry

Answers

Answer:

I think it is stoichiometry

What percentage of the Periodic Table of Elements is Metals?

Answers

80 percent

About 80 percent of the elements are metals (shiny elements that conduct heat and electricity well), and 15 percent of the elements are nonmetals (poor conductors of heat and electricity). The remaining elements are metalloids, which share properties of both metals and nonmetals.

Answer:

80% of the Periodic Table consists of metals and 15% non-metals and 5% other elements.

Explanation:

State of Matter refers to _______.

Answers

Answer:

matter refers to anything that has mass and volume which occupies space

Which statement about electronegativity is incorrect?
A) Within a periodic table group, electronegativity increases from bottom to top.
B) Metals generally have higher electronegativity values than nonmetals.
C) Within a periodic table row, electronegativity increases from left to right.
D) Fluorine is the most electronegative atom of all the elements.

Answers

Answer:

A

Explanation:

refer to your text book

What is Nuclear fusion​

Answers

Answer:

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons).

PLZ HELP?! 50 points

Write the correct IUPAC name for the following compound

Answers

Answer:

2-ethly-3-5 dimethylheptam

Explanation:

trust meeeeee

5.20763 to three significant figures​

Answers

Answer:

5.21

Explanation: You can only have 3 digits, so you would round to the hundredths place

HOW DO THE FOLLOWING COMPARE IN THE AMOUNT OF ALCOHOL THEY CONTAIN: 12 OZ. BEER(5% ALCOHOL), 12 OZ. WINE COOLER(5% ALCOHOL), 1 1/2 OZ. OF 80 PROOF LIQUOR, 5 OZ. OF WINE(12% ALCOHOL)?

Answers

The amount of alcohol contained in each of the listed beverages can be compared as follows; 1/2 oz of 80 proof liquor > 5 oz of wine (12% alcohol) > 12 oz of wine cooler (5%alcohol) = 12 oz of beer  (5%alcohol) .

A drink that contains alcohol must be an intoxicating beverage. The extent of intoxication of an alcoholic beverage depends on the amount of alcohol that the beverage contains. There are various types of alcoholic beverages as listed in the question.

The amount of alcohol contained in each of the listed beverages can be compared as follows; 1/2 oz of 80 proof liquor > 5 oz of wine (12% alcohol) > 12 oz of wine cooler (5%alcohol) = 12 oz of beer  (5%alcohol) .

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What is changing if you're accelerating?

Answers

Answer:

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

hope I help you ☺️❤️

Answer:

your speed

Explanation:

If you start to accelerate, you are bound to move faster

PLEASE help in the middle of a test: When table salt forms, which action occurs between the reacting elements?(1 point)

Answers

Answer:

don't know if this is what your looking for but it might be a NEUTRILIZATION REACTION.

Answer:

i think its sodium donates an electron to chlorine

Explanation:

What is the purpose of an indicator in a titration.

Answers

Answer:

The role of indicator in titration is to detect the endpoint of the titration. When the colour of the solution changes, it indicates that the concentration of the chemical specie has reached a critical range. This change in colour is possible with the help of indicators.

Explanation:

hope it helps

#carry on learning and keep safe

correct me if I'm wrong and if correct brainliest me please

Hence, indicators in a titration are used to identify the equivalence or the end point of a reaction where pH change occurs. Note: Apart from phenolphthalein, methylene orange is also used as an indicator that changes color when pH changes. It has red color in acidic solution, and a yellow color in basic solution.

I hop this helps! :)

when an electron is acquired by a neutral atom, the energy change is called

Answers

Answer:

when an electron is acquired by a neutron atom, the energy change is called its electron affinity

When an electron is added to a neutral atom to create a negative ion, the energy of the atom changes (in kJ/mole). This is how electron affinity is defined. Alternatively put, the possibility of the neutral atom receiving an electron.

What is electron affinity ?

The amount of energy released when an electron binds to a neutral atom or molecule in the gaseous state to produce an anion is known as the electron affinity of an atom or molecule.

Although there is a slight distinction between the two, electron gain enthalpy is occasionally also referred to as electron affinity. The amount of energy released when an electron is added to a single gaseous atom is known as the electron gain enthalpy.

The amount of energy released when an atom receives an additional electron is known as its electron affinity. The gaseous state is when electron affinities are measured. On the periodic table, electron affinities tend to shift from negative to positive as we move from left to right.

Thus, when an electron is acquired by a neutral atom, the energy change is called as electron affinity.

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according to iupac nomeclature rules which set of chemical name and formula for the same compound is correct?

Answers

Answer:

stock and traditional

Explanation:

the iupac says so

how many structures are possible for a square planar molecule with a formula of ax3y?

Answers

Answer:

Explanation:

Depending upon the relative arrangements of XandY X a n d Y , the square planar molecule AX3Y A X 3 Y shows only the following structure: Hence, only one structure is possible for a square planar molecule with a formula of AX3Y A X 3 Y .

Elements that become cations during bonding become smaller as a result.
A.
True

B.
False

Answers

It’s False sorry if it’s wrong but I hope it help

Which of these questions can be answered using science?

What is the best career?

Does water exist on Venus?

Should the use of automobiles be stopped?

Which is the most interesting subject to study?

Answers

Answer:

B. Does water exist on Venus?

Explanation:

The first question, " which is the best career " isn't answered by science since it's subjective. different individuals will have different views, but I believe, whatever field a particular person like is the best field career. The third question is a " computer and technology " related question along with It being subjective while the forth

the question, just like the up to two questions, it's also subjective but the second question is in fact understandable by science.

Answer:

Does water exist on Venus?

Explanation:

This answer would be answered using science because venus is another planet and we don't have access to it, the only way we would know would be if scientists traveled there and explored it.

Hey y’all is these answers correct?

Answers

Answer:

ʏᴇs, ɪ ᴛʜɪɴᴋ

Explanation:

TᕼᗩᑎKՏ ᒪOᗪՏ

yes
source: i’m black

How might a firefighter use chemistry?
A. Chemistry can help a firefighter plan an escape route through a
burning building
B. Chemistry can help a firefighter understand combustion and how
to put out fires.
C. Chemistry can help a firefighter understand how much of a load
the floors of a burning building can hold,
D. Chemistry can help a firefighter plan an exercise routine to prepare
for fires

Answers

Answer:

me has answer

Explanation:

b

If a sample of air in a school container was heated, would the percentage of oxygen in the air increase, decrease, or remain unchanged?

Answers

Answer:

increase

Explanation:

Let's suppose we have a sample of air in a closed container. We heat the container and we want to predict what would happen to the pressure.

According to Gay-Lussac's law, the pressure of a gas is directly proportional to its absolute temperature.

Thus, if we increased the temperature of the air by heating it, its pressure would increase.

If a sample of air in a closed container was heated, the total pressure of the air would increase.

Chandra wants to know how many moles are contained in 150. 0 g CCl4 (carbon tetrachloride). What quantity of CCl4 should she use to make this conversion? number of moles molecular mass molar mass mole ratio.

Answers

Answer:

Molar mass

Explanation:

The molar mass is the number of grams by which there's exactly one mole of one specific substance. So what you do is divide the grams by the molar mass to obtain the number of moles :).

Answer:

Yep Moler mass is the answer

Explanation:

7. You should see a diagonal band from top left to bottom right across your graph. These are called "main sequence stars". Describe the general trend or relationship they show between temperature and brightness.

Answers

Answer: mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Explanation:

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