Chemistry College

I’ll mark brainliest!!! Please solve and say what reaction type.

Answers

Answer 1

Answer:

2Al + 6HCl -----> 2AlCl3 + 3H2

Reaction of acid with metals

Cu(OH)2. -----> H2O. + CuO

Dissociation of coper hydroxide / dissociation of base

Explanation:

Related Questions

what is a physical quantity

Answers

A quantity that can be measured physically.

Mr. Smith wanted to see if the color of light shined on a plant had an effect on the number of leaves it had. He gathered a 2
groups of the same species of plants, gave them the same amount of water, and did the test for the same amount of time.
On one group of plants he used white light. On the second group he changed the light color to red. Identify:
Independent variable:
Dependent variable:
Constants:
Control group (What would Mr. Smith use as a control group?):
Experimental group (what would Mr. Smith use as a experimental group?)

Answers

Higgffggvtgrjtbrb verve even

Sulfur dioxide (SO2) is an unwelcome result
of burning soft coal in power plants. Some
of the SO2 ends up as sulfuric acid in acid
precipitation. The net reaction is
2 SO2(g) + O2(g) + 2 H2O(l) —— 2 H2SO4(l)
What mass in grams of SO2 is needed to
react with 1771 g of O2?
Answer in units of g.

Answers

Answer:

I believe it is 1771 divided by 4

Explanation:

atom ,molecule, proton neutron electron, elements/compounds from SMALLEST to the BIGGEST.

Answers

Answer:

Electron,Protons/Neutrons,Atom,Molecule

Explanation:

How many grams of Fe3+ are present in 2.56 grams of iron(III) iodide?

Answers

Answer:

436.55841 grams.

Explanation:

The molecular formula for Iron(III) Iodide is FeI3. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Iron(III) Iodide, or 436.55841 grams.

You use the 1 / 436.55841 conversion rate. This is different for each element, according to the stoichiometry tables. Iron(II) oxide would be 2/3 of the 1/436.55841 conversion rate, that is, multiplying the fraction to denominator.

The following is a procedure that was theoretically performed by a student. Read through the procedure and answer the questions below.1.A 10.0 mL graduated cylinder to measure 10.0 mL of a 1.00 M CaCl2 solution into an initially empty 50.0 mL beaker.2.A 50.0 mL graduated cylinder was then used to measure out 25.0 mL of 0.500 M K2CO3. This K2CO3solution was then added to the beaker containing the CaCl2 solution. The solution became cloudy, and the student concluded that a precipitate must have formed. Write a balanced chemical reaction below, including phases, and identify the chemical formula of the precipitate:

Answers

Answer:

CaCl2 (aq) + K2CO3(aq) ---------> CaCO3(s) + 2KCl(aq)

Explanation:

We have the reactants as calcium chloride and potassium carbonate. Recall that we are expecting that the reaction will yield a precipitate. We must keep that in mind as we seek to write its balanced chemical reaction equation.

So we now have;

CaCl2 (aq) + K2CO3(aq) ---------> CaCO3(s) + 2KCl(aq)

Recall that the rule of balancing chemical reaction equation states that the number of atoms of each element on the right side of the reaction equation must be the same as the number of atoms of the same element on the left hand side of the reaction equation.

The table below shows properties of two compounds at standard pressure. Which statement classifies the two compounds? 1)Both compounds are ionic, 2)Both compounds are molecular, 3) Compound 1 is ionic, and compound 2 is molecular, 4)Compound 1 is molecular, and compound is ionic

Answers

Answer:

answer of this question is option. 3. compound 1 is ionic ,and 2 is molecular

Compound 1 is ionic and compound 2 is molecular. The correct option is 3) Compound 1 is ionic, and compound 2 is molecular

From the question,

We are to classify the compounds according to the information provided in the table

First,

We will list the properties of ionic and molecular compounds

Properties of ionic compounds

The exist as solid at room temperature. They generally have high melting and boiling temperatures. They are good electrical conductors when molten or in solution.

Properties of molecular compounds

They can exist as solid, liquid or gas.They generally have low melting and boiling temperatures. They are poor electrical conductors.

In the given table,

Compound 1 has high melting and boiling points, and it is a good electrical conductor. Therefore, compound 1 is ionic

Compound 2 has low melting and boiling points, and it is a poor electrical conductor. Therefore, compound 2 is molecular

Hence, Compound 1 is ionic and compound 2 is molecular. The correct option is 3) Compound 1 is ionic, and compound 2 is molecular

Learn more on properties of ionic and molecular compounds here: https://brainly.com/question/13878434

which mineral is composed of calcium and fluorine?

Answers

Answer:

Fluorite

What is Fluorite? Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). It is used in a wide variety of chemical, metallurgical, and ceramic processes

Exactly what the first person said. Fluorite.

HELPPPPPPPPPPPPPPPPPP

Answers

Answer:

*helps and doesnt get deleted*

Explanation:

Pressure is often defined as

Answers

Answer:

Pressure is often defined as a measure of force applied on an area, or over a unit area.

Explanation:

What is the length of an average solar cycle? A. 5 years B. 11 years C. 22 years D. 10 years

Answers

B. A solar cycle usually lasts 11 years.

Diana has just completed a reaction that had a chemical change. Which two changes could be evidence of this change?

color and odor
color and shape
odor and density
shape and density

Answers

Answer:

I think its A im sorry if im wrong

Explanation:

Answer:

color and odor

Explanation:

How are electricity and magnetism related?
Electricity and magnetism are not related.
Moving magnets can make electrical currents.
Electricity can create a magnetic field.
Protons and electrons are repelled by magnets.
NEED HELP NOW

Answers

Answer:How are electricity and magnetism related?

Moving magnets can make electrical currents.

Electricity and magnetism are not related.

Protons and electrons are repelled by magnets.How are electricity and magnetism related?

Moving magnets can make electrical currents.

Electricity and magnetism are not related.

Protons and electrons are repelled by magnets.

Explanation:

Convert 0.760 atm to mmHg

Answers

Answer:

577.6 mmHg

Explanation:

What is the conversion between atm (standard atmosphere) and mmHg (millimeters of mercury)?

Multiply the atm amount by 760 to get the mmHg amount.

19/25 * 760/1

19/5 * 152/1

(19*152)/5

2888/5

577 3/5 or 577.6 mmHg

A .......... notifies you that danger is present if the directions are not followed.

•A . Warning
•B.Hazard
•C. Safety
•D. Danger

Answers

Answer:

A. Warning

Explanation:

Out of all said choices, the best choice would be warning since it would fit the sentence the most.

"A Warning notifies you that danger is present." compared to:

"A Hazard notifies you that danger is present."

"A Safety notifies you that danger is present."

"A Danger notifies you that danger is present."

How do you know when to put a positive or negative exponent?

Answers

Answer:

If a negative number is raised to an even power, the result will be positive. If a negative number is raised to an odd power, the result will be negative. The negative number must be enclosed by parentheses to have the exponent apply to the negative term.

Explanation:

Copper metal reacts with silver nitrate to produce silver metal and copper (II) nitrate.
the correct equation for this reaction is:
A: Cu + SiN—> Si + Cu2N

B: 2Cu + AgNO3–> Ag +
Cu(NO3)2

C: Cu + 2 AgNO3–> Ag + Cu(NO3)2

D:Cu + AgNO3–> Ag + CuNO3

Answers

Answer:

Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂

Explanation:

The reactants are:

Copper metal = Cu

Silver nitrate = AgNO₃

The products are:

Silver metal = Ag

Copper (II) nitrate = Cu(NO₃)₂

So, the reaction equation is given as;

Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂

This is a single displacement reaction

Which of these can be found in a plant cell, but not in an animal cell?

Answers

Answer:

Hey!

Explanation:

I dont know the answers but Cell walls and Cloroplasts are only in plant cells. I hope this helps!

6. Three of these terms belong together. Which one doesn't belong?
A) nucleus
B) cytoplasm
C) cell wall
D) cell membrane
Explain why the one you chose doesn't belong with the other three?

Answers

Answer:

i am 50/50 at the memoent but i have a feeling it is the cytoplasm as it isnt a cell like the others. Hope this helps :(

Explanation:

What are the names of the compounds containing silver?
Show the compound formula and their names. (WRITE CLEARLY AND NEATLY OR THE QUESTION WILL BE CONSIDERED WRONG)

Answers

Answer:

the silver compounds include:

silver chloride agcl ,

silver bromide agbr ,

and silver iodide agi.

what is the mass in grams of 0.40 moles of sodium borohydride nabh4

Answers

Answer:

15.12g

Explanation:

Given parameters:

Number of moles = 0.4moles

Unknown:

Mass of the compound = ?

Solution:

To solve this problem;

Mass = number of moles x molar mass

Molar mass of NaBH₄ = 23 + 10.8 + 4(1) = 37.8g/mol

Mass of the compound = 0.4 x 37.8 = 15.12g

Answer:

The answer is 15.12 g but if you are taking this test on ck12 make sure you round it to 15 like it says on the directions :) good luck

Measure that affects the thermal energy of matter but not it's temperature.

Answers

Answer: mass

Explanation:

Which best describes why NH4+ can form an ionic bond with Cl–?
Its outermost shell gains one or more electrons from Cl–.
Its positive charge is attracted to the negative charge of Cl–.
It has a negative charge that is spread over the entire ion.
It has a nitrogen atom that is strongly attracted to Cl–.

Answers

Answer:

Its positive charge is attracted to the negative charge of Cl–.

Explanation:

The best description of why NH₄⁺ forms an ionic bond with Cl⁻ is that its positive charge is attracted to the negative charge of Cl⁻.

An ionic bond forms as a result of transfer of electrons. As a result the seemingly metal ion is attracted to the negative non-metal ion.

The electrostatic force of attraction between these ions is the ionic or electrovalent bond.

So, the attraction between these opposite charges will form the ionic bond.

Answer:

B: Its positive charge is attracted to the negative charge of Cl–

Explanation:

right on edge2021

PLEASE HELP PLEASE LLEASE HELP, WILL MARK BRAINLIEST!!!

Which of the following elements will NOT reach an octet when in a bond?

Answers

Answer:

Hydrogen

Explanation:

Kp/Kc for reaction for the equilibrium, A(g) ⇌ C(g)+B(g), is _______.

(Kc is the equilibrium constant in terms of concentrations, Kp is the equilibrium constant in terms of pressures, R is the gas constant, T is the temperature)

Select one:
(RT)2
(RT)-1
(RT)-2
(RT)-1.5
RT

Answers

Kp/Kc = RT

Further explanation

Given

Reaction

A(g) ⇌ C(g)+B(g)

Required

Kp/Kc

Solution

For reaction :

pA + qB ⇒ mC + nD

[tex]\large {\boxed {\bold {Kc ~ = ~ \frac {[C] ^ m [D] ^ n} {[A] ^ p [B] ^ q}}}}[/tex]

While the equilibrium constant Kp is based on the partial pressure

[tex]\large {\boxed {\bold {Kp ~ = ~ \frac {[pC] ^ m [pD] ^ n} {[pA] ^ p [pB] ^ q}}}}[/tex]

The value of Kp and Kc can be linked to the formula '

[tex]\large {\boxed {\bold {Kp ~ = ~ Kc. (R.T) ^ {\Delta n}}}}[/tex]

R = gas constant = 0.0821 L.atm / mol.K

Δn=moles products - moles reactants or

number of product coefficients-number of reactant coefficients

For reaction :

A(g) ⇌ C(g)+B(g)

number of product coefficients = 1+1=2

number of reactant coefficients = 1

Δn= 2 - 1 =1

So Kp/Kc = RT

An increase in aurora activity on Earth could be related to what activity on the Sun?
O A decrease in prominence
B decrease in solar Fares
Oc decrease in speed of solar wind
D increase in speed of solar wind
E increase in sun spots

Answers

Answer:

Explanation:

INCREASE OF SOLAR WINDS When the sun is more active

what type of reaction is AsCl+H2S --> As2S3+HCl

Answers

Answer:

Double replacement:

Explanation:

Chemical equation:

2AsCl + 3H₂S → As₂S₃ + 6HCl

The given reaction is double displacement reaction. In this reaction arsenic trichloride and hydrogen sulfide react and produced arsenic sulfide and hydrogen chloride. In double displacement reaction both anion an cation of reactants are exchanged with each other.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

General equation:

AB + CD → AD +CB

Which of the following does NOT determine local weather patterns?

Answers

Answer:

do you have a picture of the choices?

Based on the number of valence electrons indicated by its location in the periodic table ,which elements behavior would you predict to be closest to that of potassium (k)

Answers

Answer:

Na sodium or Rb rubidium

Explanation:

Because Na is present in first group all members of group 1 have 1 electron in valence shell and show similar properties.

. What were the main inventions of the industrial revolution? What changes did they bring about ?

Answers

Answer:

The Industrial Revolution was a period of great industrialization that began in the late 18th century in Britain, leading to massive population growth and agricultural innovations, which laid the foundation for increased productivity, both with increased labor and a larger market for the products. There was a revolution in the production methods of the textile industry, especially with the advent of the steam engine and urban development, the influx of people from the countryside to the cities meant that there was an abundance of labor, which laid the foundation for the industrial cities of the nineteenth century. The steam engine was also used in the new generation of transport, in locomotives and steamships. With the advent of steel as a building material along with a series of new discoveries in communication technology in the second half of the 19th century, the tone was set for the continued technological development of the 20th century.

Other Questions