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3 years ago

5

The sun revolved around the earth why ? help me

2 answers:

Sergio [31]3 years ago

6 0

Answer:

You are moving because the Earth and everything in our solar system is constantly moving. ... As the Earth rotates, it also moves, or revolves, around the Sun. The Earth's path around the Sun is called its orbit. It takes the Earth one year, or 365 1/4 days, to completely orbit the Sun.

sveticcg [70]3 years ago

3 0

Answer:

um lol i think you mean Why does the earth revolve around the sun

its because the that the gravity of the Sun keeps the earth in its orbit

Explanation:

hope this helps!

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For the following Bronsted acid-base reaction, complete the reaction, identify the acid, base, conjugate

madam [21]

Answer:

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3 years ago

What is the mass, in pounds, of 389 mL of a gas that has a density of 1.29 g/L?

devlian [24]

Answer: Mass of gas is 0.001 pounds.

Explanation:

Density is defined as the mass contained per unit volume.

$Density=\frac{mass}{Volume}$

Given : Mass of gas = ?

Density of gas = $1.29g/L$

Volume of gas = 389 ml = 0.389 L (1L=1000ml)

Putting in the values we get:

$1.29g/L=\frac{mass}{0.389L}$

$mass=0.5grams$

$mass=0.5\times 0.002lb=0.001lb$ (1g =0.002 lb)

Thus the mass of gas is 0.001 pounds.

7 0

3 years ago

What is the mass in grams of 4.25 x 103moles of N2?

Dovator [93]

Mass =?
moles of N2 = 4.25 x 103 mol
molar mass of N2 = (14)x2 = 28

8 0

3 years ago

5. How many moles of gas are in a 7.5 L container, at 1 atm of pressure, at 100 degrees

loris [4]

Answer:

Ok; just use PV=nRT solve for n.

Explanation:

7 0

3 years ago

S(s)+3F2(g)->SF6(g) how many mol of F2 are required to react completely with 2.30 mol of S?

Brilliant_brown [7]

Answer: There are 6.9 mol of $F_{2}$ are required to react completely with 2.30 mol of S.

Explanation:

The given reaction equation is as follows.

$S(s) + 3F_{2}(g) \rightarrow SF_{6}(g)$

Here, 1 mole of S is reaction with 3 moles of $F_{2}$ which means 1 mole of S requires 3 moles of $F_{2}$ .

Therefore, moles of $F_{2}$ required to react completely with 2.30 moles S are calculated as follows.

$1 mol S = 3 mol F_{2}\\2.30 mol S = 3 mol F_{2} \times 2.30 \\= 6.9 mol F_{2}$

Thus, we can conclude that there are 6.9 mol of $F_{2}$ are required to react completely with 2.30 mol of S.

3 0

3 years ago