Help! It’s due in 1 minute

Help! Its Due In 1 Minute

Answers

Answer 1

The answer is the last option, Zn + S ➡️ ZnS.


Related Questions

a vessel contains 66 g co2 and 16 g o2 at a pressure of 10.0 atm. what is the partial pressure of co2?

Answers

This question is providing the masses of carbon dioxide and oxygen gases at 10.0 atm as 66 g and 16 g respectively, and is asking for the partial pressure of the former which turns out to be 7.50 atm after doing the math.

Thus, we can start solving this problem with the Dalton's law approach, in order to make a relationship for the total pressure, partial pressure and mole fraction, which means we must first determine the mole fraction of carbon dioxide gas in the mixture as shown below:

[tex]x_{CO_2}=\frac{n_{CO_2}}{n_{CO_2}+n_{O_2}}[/tex]

Next, we calculate the moles of both gases by dividing the grams over the molar masses:

[tex]n_{CO_2}=\frac{66g}{44.01g/mol} =1.50mol\\\\n_{O_2}=\frac{16g}{32g/mol} =0.5mol[/tex]

Then, the mole fraction of carbon dioxide as the required one by plugging in the previously calculated moles:

[tex]x_{CO_2}=\frac{1.5}{1.5+0.5}=0.75[/tex]

Finally, we use the definition of the Dalton's law to calculate the partial pressure of carbon dioxide gas in the binary mixture:

[tex]P_{CO_2}=x_{CO_2}P\\\\P_{CO_2}=0.75*10.0atm\\\\P_{CO_2}=7.50 atm[/tex]

Learn more:

(Dalton's law) https://brainly.com/question/14119417

Zn + 2HCl —> ZnCl2 + H2
If you have 6.8 moles of zinc chloride produced, how many moles of zinc reacted?

Answers

Answer:

about 4 or 4.8

Explanation:

pls help me out!! perform the mathematical operation and report to the appropriate number of significant figures 0.00325136-1.76527

Answers

Answer:

-1.76202

Explanation: Because the operation is subtraction, you would count the number of digits after the decimal point. Then you would perform the operation and round your answer to the SMALLER number of digits after the decimal point.

1. Atomic mass of 12 and 6 neutrons what is the atomic number?

Answers

Answer:

The atomic number would be 12.

Explanation:

A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons.

Elements join together to form_____.

Answers

Answer:

compounds

Explanation:

How did the Heisenberg uncertainty principle contribute to the idea that electrons occupy “clouds," or "orbitals”?​

Answers

Answer:

Because the exact position of the electron is not known,it must be assumed that the electron takes up the entire space in an orbital.

Explanation:

One of the products when aqueous Na, CO, reacts with aqueous
Sn(NO3), is
O a. Sn(CO3)2
O b. CNO3
O c. NaSn.
O d. NaNO3

Answers

Answer:

NaNO3

balanced equation - Na2CO3 + Sn(NO3)2 → 2NaNO3 + Sn(CO3)

How many molecules are in 1.3 moles of water?​

Answers

Answer:

7.8286e+23

Explanation:

Use Avogadro's number

15. Which reaction produces a coloured substance?
A. The addition of sodium metal to water.
B. The addition of sulfur dioxide gas to water.
C. Burning sodium metal in chlorine gas.
D. The addition of chlorine gas to a solution of potassium iodide.

Answers

Answer:

the addition of chlorine gas to a solution of potassium iodide.

The reaction that produces a colored substance is the addition of chlorine gas to a solution of potassium iodide. The correct option is D.

What is a chemical reaction?

In a chemical reaction, reactants undergo a chemical reaction and transform into products through a chemical process. For instance, when humans breathe in oxygen, it combines with glucose to create carbon dioxide, water, and energy.

Another sign that a chemical reaction has taken place is a change in color. If two solutions are combined and a color change occurs that is not just the effect of diluting one of the reactant solutions, a reaction has taken place. A solid and a liquid combined may also result in a change in color.

Therefore, the correct option is D. The addition of chlorine gas to a solution of potassium iodide.

To learn more about chemical reactions, refer to the link:

https://brainly.com/question/22817140

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The____ is the basic unit of life

Answers

Answer:

cell

Explanation:

Cells are the most simple, basic units of life

Answer:

the CELL is the basic unit of life.

Explanation:

I had this is my science lesson

have a great day!

hope this helps!

feel free to mark as brainliest! ;)

What happens when your face is near the spoon. Please specify.​

Answers

Answer:

RBCs are disc-shaped with a flatter, concave center. This biconcave shape allows the cells to flow smoothly through the narrowest blood vessels. ... Many RBCs are wider than capillaries, but their shape provides the needed flexibility to squeeze through

28) what is the number of oxygen atoms in the formula unit of Ca3(PO4)2?​

Answers

Answer:

4.816x10²⁴atoms

Explanation:

the number of moles of oxygen is 8

let x be number of oxygen atoms

recall that 1 mole=6.02x10^23 atoms

therefore, 8 moles =x

cross multiply

8 x 6.02 x 10^23 = x

x = 4.816 x 10²⁴atoms

I get it! Now I know that an organism's traits
are controlled by ____________

Answers

Answer:

Genes mainly, however the environment as well

Explanation:

2. Use the graph below to answer the following questions.
Does this graph represent an endothermic or an exothermic reaction?

How do you know this graph represents that type of reaction?

What is the potential energy of the reactants (PEreactants)?

What is the potential energy of the products (PEproducts)?

What is ΔH of the reaction?
REMEMBER: ΔH = PEproducts - PEreactants

What is the activation energy (Ea) of this reaction?
REMEMBER: Activation Energy = Maximum Energy - PEreactants

Answers

Answer:

The graph represents an endothermic reaction.

The products have more energy than the reactants.

80kJ

160kJ

80kJ

160kJ

The given graph is representing an endothermic reaction as the potential energy reactants are lower than that of the products.

ΔH of the reaction and activation energy is 80 KJ and 160 KJ respectively.

What is the endothermic process?

An endothermic process can be defined as a process with an increase in the enthalpy H of the system. An endothermic process involves an increase in the temperature of the system.

Whether a process occurs spontaneously depends not just on the enthalpy change but also on the entropy change and temperature.

From the graph, the potential energy of the reactants = 80 KJ

The potential energy of the products = 160 KJ

ΔH of the reaction, ΔH = PE(products) - PE(reactants)

ΔH = 160 -80 = 80 KJ

The activation energy (Ea) of this reaction will be:

Activation Energy (Ea) = Maximum Energy - PE(reactants)

Activation Energy = 240 - 80 = 160 KJ

Learn more about the endothermic process, here:

brainly.com/question/13818956

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FeCl3
+
NaOH →
Fe(OH)
+
Naci
-
balance plzzzz help I live give u the brainliest

Answers

l don’t think that’s a problem ...

Will Mark Branliest!

How many grams are in 4.1 mole sample of CO?

Answers

4.1 Moles of Cobalt = 241.62612 Grams

CORRECT ANSWER WILL GET BRAINLIEST

Is the following nuclear equation balanced?
A. yes
B. no

Answers

Answer: B. no

Explanation:

The answer is no!! hope this helps :)

Who ever gets it right first I will give brainly and 20 points. Have a very merry christmas

Answers

Answer: It is conserved.

Explanation: When the box is pushed across the floor, then floor and box becomes warm which resembles the condition of conservation of energy.

The given problem can be resolved by the concept of energy conservation. The statement of energy conservation says that, "Energy is neither be created nor be destroyed, but it is converted from one form to another.

In the given problem, the person pushes the box across the floor, such that the mechanical energy from the moving arms of person is transferred to the box, and the box and floor becomes warm.

During this process, the energy from the person moving arm is transferred to the box in the form of kinetic energy. And thus kinetic energy is then being transferred to thermal energy or heat energy, due to which the box and floor becomes warm.

Thus, we can conclude that the given case reflects the process of transformation of energy from one state to another, which highlights that during the process, energy is conserved.

Why is the molecule not an example of a cis stereoisomer

Answers

Answer:

Because in order to have cis or trans configuration both carbon of alkene need to have a hydrogen

1) Which of the following is true about Earth’s plates?

a. Earth’s plates are separated by oceans.
b. Earth’s plates are piled on top of one another within the Earth.
c. Earth’s plates fit closely together with the edges of the plates touching each other.
d. Earth’s plates are surrounded by melted rock and do not touch each other.

Answers

Answer:

a because the others whould cause earthquakes

Explanation:

Answer:

A

Explanation:

because i think is A (if is not im sorry )

Why does all matter contain thermal
energy?
A. Because particles stop moving
B. Because all matter is hot
C. Because particles can never stop moving
D. Because all matter is cold

Answers

Answer:

The answer is C.  Because particles can never stop moving

Explanation:

"All matter has thermal energy, even matter that feels cold. That's because the particles of all matter are in constant motion and have kinetic energy."

A penny is 0.061 inches thick. What is the value of the 6 in the thickness of a penny? Mathematics not chemistry

Answers

Answer:

because of the location of the 6 the answer is 6 cent

Answer:

Hundredths

Explanation:

$6 times 1/$100. The 0 is tenths, the 6 is hundredths and the 1 is thousandths.

Can someone help me please

Answers

Answer: The correct pairs of elements likely to form ionic compounds are, potassium and sulfur, magnesium and chlorine. The answer is argon please give me brainlist

Explanation:

How do characteristic properties help you determine whether a chemical
change or a physical change has occurred? I

Answers

Answer: The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.

Explanation:


Help this is due today!!!

Answers

Answer:

a) Fe

b) Fe

c) Fe

Explanation:

When using their stoichiometric ratios, in all of the the iron will run out before the oxygen, making the iron the limiting reactant.

which of the following contains a covalent bond?
A) BeO
B) LiCI
C) CN
D) MgO

Answers

Answer= C) CN contains a covalent bond.

Please select the word from the list that best fits the definition
a new energy source found in the ocean that is currently very costly to obtain
nonrenewable resources
renewable resources
methane hydrates
plankton
petroleum
nonliving resources

Answers

Answer:renewable resources

Explanation:

You know that a circuit is a path along which electrical charges can flow. In this activity, you are going to illustrate that the flow of electricity needs a closed circuit. Your task is draw the wires that connect these objects in order to create a closed circuit. In the space provided, write one sentence that identifies why this circuit allows electrical charges to flow. Be sure to include each object in your answer.

Answers

Answer:

I cant do it for you but to help you I can tell you this The charged particles can move only when there is a complete conducting pathway (called a 'circuit' or 'loop') from one terminal of the battery to the other.

Explanation:

Which of the compounds in the table below is listed in the wrong colum?

Answers

Answer: C

Explanation: This is because of a nice thing called guessing

How long does it take an object to travel 50m at a rate of 8 m/s?

Answers

Answer:

6.25s

Explanation:

time = distance / speed

time = 50 / 8

time = 6.25s

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