Lithium (Li) has a charge of +1, and oxygen has a charge of -2. Which is the chemical formula?

Answers

Answer 1

Answer:

Considering the formation of a chemical formula, the chemical formula is Li₂O.

Ionic compounds

Cations (positivelycharged ions) and anions (negatively charged ions) combine to form ionic compounds, which must be electrically neutral. Therefore, the cations and anions must combine in such a way that the net charge contributed by the total number of cations exactly cancels the net charge contributed by the total number of anions.

Formation of a chemical formula

To form the chemical formula:

It is first necessary to place the chemical symbol of the element that is a cation, and then the negative part (anion).
Since the net charge of the compound formed must be zero (that is, add zero), when cations and anions with different charges are joined, it is necessary to cross them and place them as subscripts of the other element. In this way, balanced loads are obtained, that is, the algebraic sum is equal to zero.

Chemical formula in this case

Lithium (Li) has a charge of +1, and oxygen has a charge of -2. Taking into account the above, the chemical formula is Li₂O.

Answer 2

Answer:

Answer:

Lithium formula=Li+

Oxygen formula=O2(2-)

Explanation:

Quick note: These kinds of formula are really easy to google. Next time, google the chemical name, include the charge and include "formula" and you should get the answer.

Related Questions

1. What kind of intermolecular forces act between a chlorine monofluoride molecule and a hydrogen bromide moleculeNote: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.
Atmospheric pressure arises due to the force exerted by the air above the Earth. At higher altitudes, the mass of the air above the Earth is _____ than at sea level, and atmospheric pressure therefore _____ with altitude.
Consider the combination reaction of samarium metal and oxygen gas. If you start with 33.7 moles of samarium metal, how many moles of oxygen gas would be required to react completely with all of the samarium metal? For this reaction, samarium has a +3 oxidation state within the samarium/oxygen compound.
15.0 L of an ideal gas at 298 K and 3.36 atm are heated to 383 K with a new pressure of 5.60 atm. What is the new volume in liters
What is planck's theory?

How many molecules are in 2NaO? please someone help i dont know this :')

Answers

Answer:

One molecule

Explanation

But there is three different atoms forming this one NaOH. The three atoms are Na, O and H, that is one sodium, one oxygen, and one hydrogen.

What volume will 12 g of oxygen gas (O2) occupy at 25 °C and a pressure of 53 kPa?

Answers

ANSWER

The volume of the oxygen gas is 17.5 L

EXPLANATION

Given that;

The mass of oxygen gas is 12 grams

The temperature of the gas is 25 degrees Celcius

The pressure of the gas is 53 kPa

To find the volume of the oxygen gas, follow the steps below

Step 1; Assume the gas behaves like an ideal gas

Therefore, apply the ideal gas equation to find the volume of the gas

$\text{ PV }=\text{ nRT}$

Where

P is the pressure of the gas

V is the volume of the gas

n is number of moles of the gas

R is the universal gas constant

T is the temperature of the gas

Step 2: Find the number of moles of the oxygen gas using the below formula

$\text{ mole }=\text{ }\frac{\text{ mass}}{\text{ molar mass}}$

Recall, that the molar mass of the oxygen gas is 32 g/mol

$\begin{gathered} \text{ mole }=\text{ }\frac{12}{\text{ 32}} \n \text{ mole }=\text{ 0.375 mol} \end{gathered}$

Step 3; Convert the temperature to degree Kelvin

$\begin{gathered} \text{ T }=\text{ t }+\text{ 273.15} \n \text{ t }=\text{ 25}\degree C \n \text{ T }=25\text{ }+\text{ 273.15} \n \text{ T }=\text{ 298.15K} \end{gathered}$

Step 4; Substitute the given data into the formula in step 1

Recall, that R is 8.314 L kPa K^-1 mol^-1

$\begin{gathered} \text{ 53 }*\text{ V }=\text{ 0.375}*\text{ 8.314}*\text{ 298.15} \n \text{ 53V }=\text{ 929.557} \n \text{ Divide both sides by 53} \n \text{ }\frac{\cancel{53}V}{\cancel{53}}\text{ }=\text{ }(929.557)/(53) \n \text{ V }=\text{ }(929.557)/(93) \n \text{ V }=\text{ 17.5 L} \end{gathered}$

Hence, the volume of the oxygen gas is 17.5 L

Question 4What is the sum of these two reactions? Write your answer below, but don't worry about formatting with subscripts-Do write chemical formulas with
proper atomic symbols, though (e.g., write CuCl2, not CUCL2).
(1) Ca + 2HCl - CaCl2 + H2
(2) CaCl2+H2O = CaO + 2HCl

Answers

Answer:

$Ca +H_2O \rightarrow + H_2 + CaO$

Explanation:

Hello,

In this case, considering the given two reactions, when we add them, we obtain:

$Ca + 2HCl +CaCl_2 +H_2O \rightarrow CaCl_2 + H_2 + CaO+2HCl$

Thus, we can simplify both hydrochloric acid and calcium chloride as they are both sides to obtain:

$Ca +H_2O \rightarrow H_2 + CaO$

Best regards.

Which of the following is a chemical property?A. Gallium metal melts in your hand.
B. Platinum does not react with oxygen at room temperature.
C. The page of the textbook is white.
D. The copper sheets that form the "skin" of the Statue of Liberty
have acquired a greenish coating over the years.

Answers

The answer is D I asked the teacher

Final answer:

A chemical property is a characteristic observed during a reaction where the substance's chemical composition changes. In the provided options, 'Platinum does not react with oxygen at room temperature' and 'The copper sheets of the Statue of Liberty have acquired a greenish coating over the years' are chemical properties.

Explanation:

In Chemistry, a chemical property is a characteristic that is observed during a reaction in which the chemical composition or identity of the substance is changed. Taking a look at the options provided:

Gallium metal melts in your hand is a physical property as melting point is not a chemical change.
Platinum does not react with oxygen at room temperature is a chemical property because it is about the propensity of platinum to react (or not react) which is a chemical behavior.
The page of the textbook is white is physical property because color does not indicate a chemical change.
The copper sheets that form the 'skin' of the Statue of Liberty have acquired a greenish coating over the years is also a chemical property because the green coating is a result of a chemical reaction (oxidation).

So, the correct answers are options B and D. Both entail a change or lack of change in the chemical identity of a substance.

Learn more about Chemical Property here:

brainly.com/question/33423328

#SPJ3

A car travels with a speed of 91.4 kilometers per hour (km/hr). Convert this speed to meters per second (m/s). Show your work.

Round your final answer to three significant figures.

Type your answer...

Answers

Answer:

25.3889 m/s

Explanation:

We can simply write 91.4km/hr as,

91.4km

1 hr

=91400m

60 s × 60 s

=91400m

3600 s

= 25.3889 m/s

Calculate the electric double layer thickness of a alumina colloid in a dilute (0.1 mol/dm3) CsCI electrolyte solution at 30 °C. How are these numbers affected by the addition of 0.1 mol/dm3 of KCL? At what distance from the particle surface (r) has the potential decayed to 1% of its initial value?