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Hunter-Best [27]
3 years ago
10

Friends can __________.

Chemistry
2 answers:
inn [45]3 years ago
4 0
D) All of the above ..
Mademuasel [1]3 years ago
4 0

Answer:

the answer would be d. all of the above

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HELP NOW BRAINLIST AND 15 POINTS!!!!! I'M TIMIED!!!!!
goblinko [34]

Answer:

Explanation:

1 =  The given chemical reaction does not follow the law of conservation of mass because,

2 = Four hydrogen atoms are present in reactant side and two hydrogen atoms are present in product side.

3 = 1 ) The given chemical reaction does not follow the law of conservation of mass because,

CH₄ + O₂     →    CO₂  + H₂O

16 g  + 32 g       44 g  +  18 g

 48 g                        62 g

Law of conservation of mass:

This law stated that mass can not be created or destroyed in chemical reaction. It just changed from one to another form.

For example:

C₂H₄   +   3O₂   →    2CO₂   +  2H₂O

28 g   + 96 g    =      88 g  +  36 g

   124  g           =      124 g

6 0
4 years ago
How many neutrons would Oxygen-19 have
Softa [21]
Oxygen has 7 neutrons
8 0
3 years ago
Read 2 more answers
A weather balloon is inflated to a volume of 27.9L at a pressure of 732mmHg and a temperature of 30.1?C. The balloon rises in th
masya89 [10]

Answer:

45.4 L

Explanation:

Using Ideal gas equation for same mole of gas as

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

Given ,  

V₁ = 27.9 L

V₂ = ?

P₁ = 732 mmHg

P₂ = 385 mmHg

T₁ = 30.1 ºC

T₂ = -13.6  ºC

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (30.1 + 273.15) K = 303.25 K  

T₂ = (-13.6 + 273.15) K = 259.55 K  

Using above equation as:

\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}

\frac{{732}\times {27.9}}{303.25}=\frac{{385}\times {V_2}}{259.55}

\frac{385V_2}{259.55}=\frac{20422.8}{303.25}

148225V_2=6729708.26018

Solving for V₂ , we get:

<u>V₂ = 45.4 L</u>

7 0
4 years ago
Explain the nitrogen cycle I need a 6th grade answer please
miss Akunina [59]

Answer:

The nitrogen cycle is a repeating cycle of processes during which nitrogen moves through both living and non-living things: the atmosphere, soil, water, plants, animals and bacteria. In order to move through the different parts of the cycle, nitrogen must change forms.

Explanation:

8 0
3 years ago
The final solution had a volume of 1.0L and a molarity of 0.925. How many moles of Nickel (II) chloride were present in the solu
Llana [10]

Answer:

0.925 moles of Nickel (II) chloride

Explanation:

Now, we know that the number of moles in a solution is given by;

n=CV

n= number of moles

C= molar concentration of solution = 0.925 M

V= volume of solution= 1.0 L

So having known all the parameters except the unknown (number of moles of Nickel (II) chloride) we can now proceed to find the unknown.

n= 0.925M ×1.0L

n= 0.925 moles of Nickel (II) chloride

7 0
3 years ago
Read 2 more answers
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