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3 years ago

How does an object in motion stay in motion unless acted upon by an unbalanced force

1 answer:

7 0

An object in motion will remain in motion at a constant speed and in the same direction unless acted on by an unbalanced force. An object at rest will remain at rest unless acted upon by an unbalanced force. The acceleration of an object depends on the mass of the object and the amount of force applied to it.

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Name the following compound: HNO3

galben [10]

Im pretty sure it nitric acid

5 0

3 years ago

Get me the answers please

shutvik [7]

Answer:

a is a opinon answer

Explanation:

3 0

3 years ago

Read 2 more answers

A reaction between liquid reactants takes place at −10.0°C in a sealed, evacuated vessel with a measured volume of 45.0L. Measur

maks197457 [2]

Answer: 0.0624 atm

Explanation:-

According to the ideal gas equation:

$PV=nRT$

P = Pressure of the gas = ?

V= Volume of the gas = 45.0 L

T= Temperature of the gas = -10.0°C = 263 K $0^00C=273K$

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas

Moles of gas= $\frac{\text{ given mass}}{\text{ molar mass}}= \frac{19.0g}{146g/mole}=0.130moles$

$P=\frac{nRT}{V}=\frac{0.130\times 0.0821\times 263}{45.0}=0.0624atm$

The pressure of sulfur hexafluoride gas in the reaction vessel after the reaction is 0.0624 atm

3 0

3 years ago

Enter your answer in the provided box. On a certain winter day in Utah, the average atmospheric pressure is 718 torr. What is th

AnnZ [28]

Answer:

The correct answer is 0.047 mol/L

Explanation:

The atmospheric air is a mixture of gases. We can assume an ideal behavior of the gas and use the ideal gas equation:

PV= nRT

where P is the pressure, V is the volume, n is the number of moles, R is a constant (0.082 L.atm/K.mol) and T is the temperature in K.

We have to first convert the pressure from Torr to atm:

760 Torr= 1 atm

⇒ 718 Torr x 1 atm/760 Torr = 0.945 atm

Then, we convert the temperature from ºC to K:

0ºC = 273 K

⇒ -29ºC+273= 244 K

Finally, we introduce the data in the equation and calculate de densitiy, which is the moles per liters of gas (n/V):

PV = nRT

n/V= P/RT

n/V = (0.945 atm)/(0.082 L.atm/K.mol x 244 K) = 0.047 mol/L

7 0

3 years ago

When the equation Fe + Cl2 ----> FeCl3 is correctly balanced the coefficient for Cl2 is

Marysya12 [62]

The correct answer is D. Using the law of conservation of mass the number of atoms on each side of the equation should be equal. Through introspection, we find that there are 2 $Cl$ atoms on reactant side as opposed 3Cl atoms on product side. If we add a coefficient of 3 on $Cl_2$ we get

$Fe + 3Cl_2 ==> FeCl_3$ .

Now there are 6Cl atoms on reactant side and 2 on product side, hence we add a coefficient of 2 on both $FeCl_3$ and $Fe$ . The balanced chemical equation is,

$2Fe + 3Cl_2 ==> 2FeCl_3$

4 0

3 years ago