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MrRissso [65]
4 years ago
6

The way an experiment is carried out

Chemistry
1 answer:
zmey [24]4 years ago
5 0
The way an experiment is carried is out is determined by the purpose of that experiment.
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Balancing Practice (some of these may be in the simulation)
agasfer [191]

Answer:

see below

Explanation:

16. 1 P₄(s) + 6 F₂(g) → 1 PF₃(s)

17. 2 C(s) + 2 H₂O(g) → 1 CH₄(g) + 1 CO₂(g)

18. 2 HgO(s)→ 1 O₂(g) + 2 Hg(l)

19. 1 CaCO₃(s) → 1 CO₂(g) + 1 CaO(s)

8 0
3 years ago
What is the compound name for magnesium sulfur
igor_vitrenko [27]

Answer:

MgS is the formula and Magnesium sulfide is compound name

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following would be used to measure the amount of matter in an object?
erik [133]
The answer is Weight
3 0
4 years ago
A mixture of He, Ne and Ar has a pressure of 7.85 atm. If the Ne has a mole fraction of 0.47 and Ar has a mole fraction of 0.23,
Lena [83]

Answer:

2.355atm

Explanation:

To get the pressure of helium, we need to get the mole fraction of helium.

The total mole fraction for any mixture of gases equals 1. Hence to get the mole fraction of the helium, we simply subtract the addition of the mole fractions of neon and argon from 1.

This means - 1 - 0.47 - 0.23 = 0.3

Now, to get the pressure of the helium gas, we simply multiply the total pressure by 0.3. This is 0.3 * 7.85 = 2.355 atm

5 0
3 years ago
How many moles of pcl5 can be produced from 23.0 g of p4 (and excess cl2)? express your answer to three significant figures and
NeX [460]
Balance Chemical equation is,

                                         P₄  +  10 Cl₂   →   4 PCl₅

According to Balance Equation,

            123.89 g (1 mole) of P₄ reacts to produce   =   4 Moles of PCl₅
Then,
    23 g of P₄ will react with excess Cl₂ to produce   =   X moles of PCl₅

Solving for X,
                                      X  =  (4 mol × 23 g) ÷ 123.89 g

                                      X  =  0.742 g of PCl₅
Result:
           
When 23 g of P₄ is reacted with excess Cl₂, 0.742 g of PCl₅ is produced.
4 0
4 years ago
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