Chemistry High School

For the following word equations, write it as a chemical equation, then balance it.
copper (II) oxide + hydrogen gas ---- copper + water

Answers

Answer 1

CuO+H2=Cu+H2O the equation is balanced.

For The Following Word Equations, Write It As A Chemical Equation, Then Balance It. Copper (II) Oxide

Related Questions

(Thanks for the recent help this should be my last question for right now until I got a new one)

which of the following is an example of a solution?

A. Chex mix
B. Fruit Salad
C. Peanuts and candy corn
D. Salt water​

Answers

Answer:

I`m pretty sure its salt water

Explanation:

On a recent day the difference between the lowest temperature at the highest temperature of the day was 9*C. By how many degrees fahrenheit did the temperature change

Answers

Answer:

48.2 Fahrenheit

Explanation:

Temperature change = 9*C

By how many degrees Fahrenheit did the temperature change?

The relationship between Fahrenheit and degree Celsius is given as;

F = (9 / 5) C + 32

Inserting the value of C;

F = (9 / 5) * 9 + 32

F = 48.2 Fahrenheit

How does electronegativity affect
bonding? (Think about ionic vs
covalent).

Answers

Electronegativity differences affect the degree of sharing in covalent bonding. The more equal the sharing the stronger the bond. If the electronegativities of the two atoms are completely the same, the bond formed by the sharing of the electrons will be a pure covalent bond. (looked it up)

Remember mass/atoms is not created or destroyed. Atoms don't appear and disappear. Mark the only balanced equation below.

Answers

Answer:

The answer is Option 4

Explanation:

What does a chemical equation do?

Answers

Answer:

A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow. In a balanced chemical equation, the numbers of atoms of each element and the total charge are the same on both sides of the equation.

Answer:

chemical equation and chemical reaction

Explanation:

chemical equation is the symbolic representation Of a chemical reaction in the form of symbols

What is the oxidation number of s in na2s4o6?

Answers

Answer:

+2.5

Explanation:

So the oxidation number of S in Na2S4O6is +2.5.

Answer:

Explanation:

Oxidation number of Na = 1+   There are two of them, so it is 2*1 = 2

Oxidation number of O =  2-    There are 6 of them so 6 * 2-    =  -12

There are 4 S's so the oxidation number is 4*S

Now set up a small equation

2 + 4s - 12 = 0

And solve.

2 - 12 + 4s =0

-10 + 4s =   0

4s = 10

4s/4 =10/4

s = 2.5

(PLZ ANSWER SOON)

What is the total number of joules of heat that must be absorbed to change the temperature of 100 grams of H20 from 25.0°C to 30.0°C

Answers

Answer:

10.5 k.J.

Explanation:

Which lists the substances from least to most acidic?

a. ammonia, blood, milk, orange juice
b. orange juice, milk, blood, ammonia
c. ammonia, milk, blood, orange juice
d. orange juice, blood, milk, ammonia

Answers

C c cccccccccccccccccccccccccccccc =)

True or False:Elephants, zebras, and giraffes are all apart of the same community

Answers

Answer:

false in this animals so much difference will there

1. How many particles are in 8.14 moles of Na?

Answers

Answer:

8.14x6.022×10^23 ~ 4.901908x10^24

Explanation:

Which of the following particle diagrams represents a mixture?

Answers

Answer:

???

Explanation:

i would help answer but your post has no diagrams or at least there not showing up

Work, which is required to move a body from a resting position,
is called

A: kinetic energy
B: Potential Energy
C: Rotational Energy
D: Vibrational Energy

Answers

the energy of motion. energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest. energy of a moving object is equal to the work required to bring up to speed or bring it to rest.

What is the chemical formula for nitrogen hetasulfide

Answers

Answer:

N203

Explanation:

Answer:

n203

Explanation:

URGENT!!
Which substance is reduced in this following reaction? (which element goes through reduction).
Explain! (define what's going on, etc)

2Mg + O2 --> 2MgO

Answers

Answer:

i think it's oxygen

Explanation:

the smart kid in my class said so lol

When ethane (C2H6) burns, it produces carbon dioxide and water:

2C2H6(g)+7O2(g)→4CO2(g)+6H2O(l)

How many moles of water will be produced when 3 moles of ethane are burned?


3 moles


6 moles


9 moles


12 moles

Answers

Answer:

6 moles

Explanation:

According to stoichiometry and given chemical equation 2C₂H₆(g)+7O₂(g)→4CO₂(g)+6H₂O(l), 9 moles of water are produced when 3 moles of ethane are burned.

What is stoichiometry?

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is important while balancing chemical equations.

In the given problem , as 2 moles of ethane produce 6 moles of water so according to stoichiometry

∴ 3 moles of ethane will produce 3×6/2=9 moles

Thus, 9 moles of water are produced when 3 moles of  ethane are  burned.

Learn more about stoichiometry,here:

https://brainly.com/question/28780091

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An avocado contains 234 Calories, with 21 grams of fat. Calculate the percent of Calories from fat.

Answers

36% of calories from fat

Identify the type of reaction and products of the reaction. Mg(OH)2 + Al(NO3)3 ->

Answers

Answer:

Double replacement

Mg(NO3)2 + Al(OH)3

Explanation:

scale of 1 to 10 how pretty is this image

Answers

Answer: 10 always love yourself

Explanation:

Given the phase diagram above, what phase would water be in if it had the following properties:
a. 50 °C, and 0.5 atm pressure
b. -50°C, and 0.5 atm pressure
c. 125 ° C, and 1.0 atm pressure

Answers

Answer:

b

Explanation:

the answer is be -50 and 0.5 atm pressure

Almost all of the energy that supports life on Earth comes from _______________________.

Answers

Answer:

THE SUN!

Explanation:

In what ways are you being physical activie in a typical day?

Answers

Playing outside or going bike riding

For the following word equations, write it as a chemical equation, then balance it.
a) potassium + oxygen gas ------ potassium oxide

Answers

4K+O2-----------2K2O

What is a synthetic reaction?​

Answers

Synthesis reactions are reactions that occur when two different atoms or molecules interact to form a different molecule or compound. Most of the time, when a synthesis reaction occurs, energy is released and the reaction is exothermic

What question did this young man have about his father? und​

Answers

I am your father father

i need
this asap!! helppppp

Answers

Hund's rule tells us that 1) any orbital in a given subshell must first be occupied by a single electron before being occupied by a second electron and 2) the electrons in a singly occupied orbital all have the same spin.

Diagram I follows both 1 and 2; there are no prematurely-filled orbitals (boxes), and all the singly-filled 2p orbital have the same spin (the arrows are all pointing up). So, diagram I follows Hund's rule and is correct.

Diagram II violates 1: the first box in the 2p subshell is doubly filled while there's still a vacant orbital. That second electron in the first box should be in the third box and pointing upward for diagram II to be correct. Thus, diagram II violates Hund's rule and is incorrect.

Diagram III follows rule 1 but violates rule 2: While every 2p orbital is singly filled, they do not all have the same spin. In the second box, the arrow is pointing down while the arrows in the other two boxes are pointing up. Thus, diagram III violates Hund's rule and is incorrect.

So, of the diagrams given, II and III do not follow Hund's rule and thus are incorrect.    

why hydrogen and oxygen atoms are more stable when they form bonds in a water molecule?

Answers

The outer shell of electrons is full, so there is no need to gain or lose electrons.

The hydrogen and oxygen atoms are more stable in water molecules as they get a complete valence shell when they bonded with other atoms.

What is the reaction to the formation of water?

In a chemical reaction, two or more reactants react with each other under the chemical condition to form two or more products. The Chemical reaction is defined as a reaction two or more reactant components react with each other to form two or more products.

The water is formed by reacting hydrogen and oxygen. The chemical reaction of water formation is shown below.

[tex]H_2(g)+O_2(g)\longrightarrow H_2O(l)[/tex]

The balanced chemical equation can be defined as a reaction where the number of moles of reactants is equal to the number of moles of products.

[tex]H_2(g)+ \frac{1}{2}O_2(g)\longrightarrow H_2O(l)[/tex]

The hydrogen atoms have one electron and the oxygen has two electrons less than the complete valence shell. But in the water molecule, every atom has a complete valence shell so atoms become more stable.

Learn more about water formation, here:

https://brainly.com/question/16046990

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When 0.0801 mol of an unknown hydrocarbon is burned in a bomb calorimeter, the calorimeter increases in temperature by 2.19°C. If the heat capacity of the bomb calorimeter is 1.229 kJ/°C, what is the heat of combustion for the unknown hydrocarbon, in kJ/mol?

Answers

Answer:

S A T. NV

Explanation:



A sample of oxygen gas has a volume of 130.0 ml when its pressure is 0.952 atm. What will the volume of the gas be
at a pressure of 0.974 atm if the temperature remains constant?

Answers

Answer:

the volume of the gas when pressure 0.974atm is equal to 127.06ml

What is the answer please tell me

Answers

Answer:

you need to include the bottom portion, not enough info

Explanation:

Help lol sorry if I’m spamming this is just really hard for me

Answers

It’s true:)
The subscript on chemical equations tells you how many atoms the elements have. If there is no subscript then there is only 1 atom.
True!! Enwnwnwnwna. Anwnwnwnwwnan
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