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bixtya [17]
3 years ago
9

What is the weight on earth of a book with a mass of 1.5kg

Chemistry
2 answers:
Marta_Voda [28]3 years ago
8 0
1.5x10
=15N

sorry if im wrong
VMariaS [17]3 years ago
6 0
ANSWER: 15N

WORKING OUT:

The gravitational field strength on Earth is 10N per kg.

Therefore, we can work out the weight of the book by multiplying the mass of the book by the number of newtons per kilogram on earth.

1.5 times 10 = 15N

This is how we can conclude with the answer, "15N".
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At T = 250 °C the reaction PCl5(g) PCl3(g) + Cl2(g) has an equilibrium constant in terms of pressures Kp = 2.15. (a) Suppose the
Ganezh [65]

Answer:

To the right

Explanation:

Step 1: Given data

  • Partial pressure of PCl₅ (pPCl₅) = 0.548 atm
  • Partial pressure of PCl₃ (pCl₃) = 0.780 atm
  • Partial pressure of Cl₂ (pCl₂) = 0.780 atm

Step 2: Write the balanced equation

PCl₅(g) ⇄ PCl₃(g) + Cl₂(g)

Step 3: Calculate the pressure reaction quotient

Q_p = \frac{pPCl_3 \times pCl_2 }{pPCl_5} = \frac{0.780 \times 0.780 }{0.548} =1.11

Step 4: Determine whether the reaction proceeds to the right or to the left as equilibrium is approached

Since <em>Qp < Kp</em>, the reaction will proceed to the right to attain the equilibrium.

7 0
3 years ago
Periodic Table High School Reference Sheet
Ira Lisetskai [31]
I believe it should be B
8 0
3 years ago
Whitney's lung capacity was measured as 3.3 l at a body temperature of 37 ∘c and a pressure of 746 mmhg . how many moles of oxyg
myrzilka [38]

the ideal gas equation is PV=nRT  
 where P=pressure  
 V=Volume  
 n=no. of moles  
 R=universal gas constant  
 T=temperature  
 The universal gas constant (R) is 0.0821 L*atm/mol*K    
 a pressure of 746 mmhg =0.98 atm= 1 atm (approx)   
 T=37 degrees Celsius =37+273=310 K (convert it to Kelvin by adding 273)    
 V=0.7 L (only getting oxygen, get 21% of 3.3L)    
 Solution:  
 (1 atm)(0.7 L)=n(0.0821 L*atm/mol*K)(310 K)  
 0.7 L*atm=n(25.451 L*atm/mol)  
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n=0.0275 mole of oxygen in the lungs.
4 0
3 years ago
Nickel and gold combine to make white gold. White gold is considered a(n) of nickel and gold.
san4es73 [151]
White gold is considered an alloy of nickel and gold.
Alloy is the term which refers to the combination of metals, in which a new type of a metal is created. When you mix gold and some other white metal (such as nickel, palladium, or manganese), you get an alloy known as white gold. 
8 0
3 years ago
Read 2 more answers
9. Write the number in place value table of 820245<br>​
Burka [1]

Answer:

8----hundred thousands

2----ten thousands

0----thousands

2----hundreds

4----tens

5---ones

place value

 8 = 800,000

 2 = 20,000

 0 = 0,000

2 = 200

4 =40

5 =5

5 0
3 years ago
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