How many grams is 5.32 x 1022 atoms of Na?

Answer:

[tex]0.00153\ \text{gallons}[/tex]

Explanation:

[tex]1\ \text{milliliter}=0.000264172\ \text{gallons}[/tex]

The given volume of water is [tex]5.78\ \text{milliliters}[/tex]. So,

[tex]5.78\ \text{milliliters}=(5.78\times 0.000264172)\ \text{gallons}[/tex]

[tex]=0.00153\ \text{gallons}[/tex]

The volume of the given water in gallons is [tex]0.00153\ \text{gallons}[/tex].

Answer:

Ratio = 2 : 3 (Approx.)

Explanation:

Given:

Compound A = 1.278 g

Compound B = 1.904

Find:

Ratio

Computation:

Ratio = Compound A / Compound B

Ratio = 1.278 / 1.904

Ratio = 2 : 3 (Approx.)

Answer:

[tex]Cu_2O[/tex]

Explanation:

Hello!

In this case, according to the law of conservation of mass, it is possible to realize that the mass of oxygen comes from the subtraction of the total mass and the mass of copper:

[tex]m_O=5.62g-5.00g\\\\m_O=0.62gO[/tex]

Next, we compute the moles of both Cu and O given their atomic masses:

[tex]n_{Cu}=5.00gCu*\frac{1molCu}{63.546gCu}=0.0787molCu\\\\n_O=0.62gO*\frac{1molO}{16.0 gO}=0.03875molO[/tex]

Now, we divide by the moles of oxygen as the fewest ones, in order to calculate their subscripts in the empirical formula:

[tex]Cu=\frac{0.0787}{0.03875} =2.0\\\\O=\frac{0.03875}{0.03875} =1[/tex]

Therefore, the empirical formula turns out to be:

[tex]Cu_2O[/tex]

Best regards!

Explanation:

An elevator traveled 150 ft at a speed of 4.5 m/s. What additional information is needed to determine the velocity of the elevator?

Velocity is vector quantity.So it needs direction in addoition to speed.

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion.

Answer:

Increased evaporationof water vapour from sea or land will increase rainfall

Answer:

Explanation:

increased evaporation of water vapor from sea to land will increase rainfall

Answer:

because they contains clues about what the earth was like in the past. different rocks from under only certain conditions and even the dullest gray lump of rock.

Answer:

What i would do is put it in the nearest sink or better yet a bathtub. because if it was violent, do you really want that everywhere?

Explanation:

:)

Answer:

Option 3 is correct.

The atomic nucleus of each element has a unique number of protons. Therefore, the energy of the electron layers of the atoms of each element is unique.

If we have the energy released from each electron transfer between the layers of the atom, we can identify the element.

Answer: The answer is 4

Explanation:

Answer:

the second one

Explanation:

metal doesn't act like a magnet because the domains don't have a preferred direction of alignment. Magnets are all aligned in a specific direction.

Answer:

the rate at which sulfur dioxide is being produced is 0.8993 kg per second

Explanation:

Given the data in the question;

we write the balanced chemical reaction

2H₂S + 3O₂ → 2SO₂ + 2H₂O

now we calculate the number of moles of oxygen by using an ideal gas equation; PV = nRT

n = PV/RT

so we substitute in our values

n = ( 0.77 × 1.01325 × 10⁵ × 994 × 10⁻³ ) / ( 8.314 × (170 + 273 )

n = 77552.1285 / 3683.102

n = 21.056 mol

so, moles of SO₂  produced = 2/3 × 21.056 = 14.0373 moles

Hence, the production rate will be;

⇒ 14.0373 × 64.066

= 899.3 g/s

= 0.8993 kg/s

Therefore, the rate at which sulfur dioxide is being produced is 0.8993 kg per second

Answer: true

Explanation:

Answer:

it's a temperature where a solid will melt

Answer:

FALSE!

Explanation:

Gymnosperms do use seeds but are exposed like the pine cones of pines. Angiosperms still have seeds, however, they flower or fruit.

Answer:

False

Explanation:

Answer:

1. Observing

2. Classifying

3. Predicting

4. Making a hypothesis

5. Experimenting

6. Measuring

7. Communicating

8. Making an inference

9. Constant

10. Interpreting data

Explanation:

Hope this helps!!

hope it is helpful to you

Answer:

See Explanation

Explanation:

An electrolyte is a solution which is able to conduct electricity. An electrolyte conducts electricity because of the presence of ions which move around in the solution.

Ba(OH)2 and H2SO4 are composed of ions; these ions are the charge carriers in solution and are responsible for the conductivity of the solution and the glow of the bulb.

When Ba(OH)2 and H2SO4 are mixed, the following reaction occurs;

Ba(OH)2(aq) + H2SO4(aq) -------->BaSO4(s) + 2H2O(l)

The formation of the BaSO4(s) precipitate removes the ions that are responsible for the conductivity of the solution hence the  light bulb of the conductivity apparatus dims and eventually fades completely.

Answer:

1.25 grams of chlorine.

Explanation:

Hello there!

In this case, since it is possible to define the parts per million of chlorine as the milligrams of chlorine per liters of water, in order to obtain the mass of chlorine in 2500 L, we proceed as follows:

[tex]ppm=\frac{mg}{L}\\\\mg=ppm*L[/tex]

In such a way, we plug in the given 0.500 ppm and 2500 L to obtain (in grams):

[tex]mg=0.500mg/L*2500L\\\\g=1250mg*\frac{1g}{1000mg}\\\\ g=1.25g[/tex]

Best regards!

Answer:

[tex]V_2=2.5m^3[/tex]

Explanation:

Hello!

In this case, according to the Charles' law as a directly proportional relationship between volume and temperature:

[tex]\frac{V_2}{T_2}=\frac{V_1}{T_1}[/tex]

Thus, in order to compute the final volume, V2, we obtain the following expression:

[tex]V_2=\frac{V_1T_2}{T_1}\\\\V_2=\frac{5m^3*300K}{600K}\\\\V_2=2.5m^3[/tex]

Best regards!

Answer:

Tyrel is learning about a certain kind of metal used to make satellites. He learns that infrared light is absorbed by the metal. X-ray light is transmitted through the metal. ... Yes, light can cause the metal to get warm because light carries energy.

Explanation:

Answer: D

Explanation: pH = - log( c). If c= 1.0 M. PH = 0, if c=0.001 M. PH = 3

Answer:b

Explanation:

ik

Answer:

420.7 degrees C

Explanation:

Use the formula V1/T1 = V2/T2 (Charles' Law) to find T2. Make sure to convert  your temperatures to Kelvin by adding 273 to the Celsius temperature.

V1 = 4.50 L

V2 = 10 L

T1 = 39.2 C = 312.2 K

Solve V1/T1 = V2/T2 for T2 and you get T2 = V2T1/V1

T2 = (10 L)(312.2 K) / (4.50 L) = 693.8 K

You can subtract 273 to get the temperature back to Celsius.

T2 = 693.8 - 273 = 420.7 degrees C

Answer:

0.25 mole of CO₂

Explanation:

We'll begin by calculating the mass of oxygen in 1 mole of carbon dioxide (CO₂). This is illustrated below:

Molecular formula of carbon dioxide

=> CO₂

Mass of oxygen in CO₂ = 2O

= 2 × 16

= 32 g

Thus, 1 mole of CO₂ contains 32 g of oxygen.

Finally, we shall determine the number of mole of CO₂ that contains 8 g of oxygen. This can be obtained as follow:

1 mole of CO₂ contains 32 g of oxygen.

Therefore, Xmol of CO₂ will contains 8 g of oxygen i.e

Xmol of CO₂ = 8/32

Xmol of CO₂ = 0.25 mole

Thus, 0.25 mole of CO₂ contains 8 g of oxygen.

Answer:

just downloud smart

Explanation:

thank me later

Answer:

950 torr

Explanation:

Step 1: Given data

Step 2: Calculate the final pressure of the gas

If we assume ideal behavior and constant temperature, we can calculate the final pressure of the gas using Boyle's law.

P₁ × V₁ = P₂ × V₂

P₂ = P₁ × V₁/V₂

P₂ = 760 torr × 1.00 L/0.800 L = 950 torr

Sulfate - SO4^-2

Sulfite - SO3^-2

Hydrogen Sulfate - HSO4-

Answer:

fire > rocks > air

Answer:

1

Explanation:

Physical change does not cause chemical energy.