You have 1 1/2 moles of 1 kg bottles of O2. What is the mass of O2 that you have? A. 9.033x10^23 kg B. 9.033x10^23 atoms C. 1.80x10^27 kg D. 1.806x10^24 moles

Answer:

We assume you are converting between moles CO2 and gram. You can view more details on each measurement unit: molecular weight of CO2 or grams This compound is also known as Carbon Dioxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CO2, or 44.0095 grams.

Answer:

Assuming the question was about 3 mol CO2 - it's 132g. Assuming it's about CO - it's 84g.

Explanation:

The molar mass of X means "a mole of X weighs that".

So 1 mol CO2 weighs 44g, so 3 moles will weigh three times that - 132g.

Now, with CO, we need to compute the molar mass of CO. One particle of CO is comprised of 2 atoms - a Carbon atom and an Oxygen atom, with molar masses ~12g and ~16g respectively. That brings us to molar mass of CO of 28g and the mass of 3 mol CO of 28g*3 = 84g

this statement is true

Answer:

Hope it helps u

Answer:

Explanation:

Are you a gril or boy

Explanation:

you use it yo determine the polarity of a covalent bond using numerical means find the difference between the electron gravity of atoms ; if the result is between 0.4 and 1.7 then generally the bond is polar covalent . pls follow and mark brainliantest

Answer:

13g

Explanation:

The law of conversation of matter tells us that in a chemical reaction, matter is never created or destroyed, it's simply converted from one form to another. So the mass of reactants should always equal the mass of the products in a chemical reaction.

Therefore, if the total mass of the products is 30g, that means that the reactants have a mass of 17g + the other reactant to = 30g.

30g - 17g = 13g

Answer:

oxygen ?

Explanation:

not sure but I think so

Aerobic cellular respiration requires an adequate supply of oxygen. In the presence of oxygen, the cell completely oxidised the glucose molecule to form ATP.

In cellular respiration, the cell takes glucose and breaks it down to form energy. Cellular respiration is of two types: aerobic respiration and anaerobic respiration.

In aerobic respiration, the cell requires oxygen. Due to the presence of oxygen, the complete oxidation of glucose takes place. Glucose is converted into pyruvic acid and then enters the Krebs cycle and the electron transport chain to make ATP.

In the aerobic cellular respiration process, the maximum amount of ATP is derived. In anaerobic respiration, the cell performs respiration without the presence of oxygen. An example is glycolysis.

In this glycolysis process, the complete oxidation of glucose does not take place. In the absence of oxygen from pyruvate, lactic acid and ethanol are produced. This is called fermentation.

Hence, for aerobic cellular respiration, oxygen is required.

To learn more about cellular expression, refer to the following link:

https://brainly.com/question/3928558

#SPJ6

Answer: i would say D or the last one.

Explanation: According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.

Hope this helps :) Can u plz mark me branliest

Answer: same concentration

Explanation:

H+ makes it more acidic, OH- makes is more basic. 7 is neutral so it has the same amount of both.

Answer: metal

Explanation:

Answer:

The graph which shows under what conditions of temperature and pressure distinct phases of matter occur is called phase diagram.

Answer:

Photosynthesis in plants converts solar energy into chemical energy using electrons and protons from water.

Explanation:

Answer:

91

Explanation:

Answer:

The value 9.8 m/s^2 is the average acceleration of a falling object due to the force of gravity on Earth. The letter g represents this value the formula v=gt. With this constant and formula, the speed of an object is calculated at the time t in seconds after it is dropped.

All objects fall at the same rate of speed due to gravity, regardless of their weight. If a small grain of sand and a bowling ball are dropped at the same time, both hit the floor at the same time. The value of g varies by one's location on the planet, ranging from 9.782 m/s^2 in the Panama Canal Zone to 9.832 m/s^2 at the Noth Pole

Explanation:

Answer:

reactants

Explanation:

Answer:

Option D.

Explanation:

Percentage yield = Actual yield / Theoretical yield * 100%

Actual yield = 11.0 grams

Theoretical yield = 12.3 grams

Percentage yield = 11.0 / 12.3  *  100

Percentage yield = 89.43%

Answer:

I can’t see the whole page

Explanation:

Answer:

2.04 g/cm3

Explanation:

Density = mass ÷ volume

= 5100 ÷ 2500

=2.04 g/cm3

Answer:

D. 4:3

Explanation:

The mole ratio is simply the coefficients in a balanced chemical reaction and their relation to each other. For example, the mole ratio between Al and [tex]Al_{2}O_{3}[/tex] is 2:1, and the ratio between [tex]O_{2}[/tex] and [tex]Al_{2}O_{3}[/tex] is 3:2.

Answer:

see explanation

Explanation:

grams => moles => divide by formula weight

moles => grams => multiply by formula weight

a. 6.7 grams NaOH = 6.7g/40g/mol = 0.17 mole

b. 2.5 moles CaCO₃ = 2.5 moles x 100g/mol = 250 grams

Answer:

941 K (668°C)

Explanation:

We have the following data:

Initial pressure : P1 = 1.45 atm

Initial temperature: T1 = 52°C + 273 = 325 K

Final pressure: P2 = 4.2 atm

Final temperature: T2 = ?

The relation between pressure and temperature for a gas at constant volume is given by Gay-Lussac's law:

P1/T1 = P2/T2

That means that the pressure is directly proportional to the absolute temperature (in K). So, we calculate T2 from the equation:

T2 = P2 x T1/P1 = 4.2 atm x (325 K/1.45 atm) = 941 K

Therefore, the final temperature would be 941 K (668°C). This is consistent with the law, that states that if the pressure increase, the temperature will be increased.  

Answer:

True.

Explanation:

Yes, all systems disperse their energy spontaneously because all types of  energy spontaneously flows from concentrated to dispersed if it is not hindered by any material in their way. Energy can be prevented from spreading by materials such as containers. If there is no substance in the path of energy so it can disperse automatically from a concentrated region to a lower region.

Answer:

d=m/v=9

Explanation:

Answer:

No

Explanation:

This is because light cannot not whiten Jayden's teeth but light can change materials by hearing it up. There are some substances or tooth paste that can be use to whiten the teeth because of the content they are made off which whitens the teeth. Some of it include baking soda, hydrogen peroxide toothpaste, tumeric toothpaste, toothpaste that contain fluoride.

Answer: B

Explanation:

Answer:

b

Explanation:

The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.

Answer:

Exothermic change

Explanation:

Hope this helps and sorry if it isnt the answer you were looking for.

Answer: 11.0 g of calcium will react with 10.0 grams of water.

Explanation:

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}[/tex]

moles of [tex]H_2O[/tex]

[tex]\text{Number of moles}=\frac{10.0g}{18g/mol}=0.55moles[/tex]

The balanced chemical equation is:

[tex]Ca+2H_2O\rightarrow Ca(OH)_2+H_2[/tex]

According to stoichiometry :

2 moles of [tex]H_2O[/tex] require = 1 mole of [tex]Ca[/tex]

Thus 0.55 moles of [tex]H_2O[/tex] require=[tex]\frac{1}{2}\times 0.55=0.275moles[/tex]  of [tex]Ca[/tex]  

Mass of [tex]Ca=moles\times {\text {Molar mass}}=0.275moles\times 40g/mol=11g[/tex]

Thus 11.0 g of calcium will react with 10.0 grams of water.

Answer: 0.659 mol

Explanation:

From the equation, we can tell that for every 4 moles of ammonia consumed, 5 moles of nitrogen are produced.

This means the answer is 0.824(4/5)=0.659 mol

Answer:

two oxygen atoms