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zhuklara [117]
3 years ago
15

In the drawing above, the hammer is acting as what type of simple machine? A. pulley B. screw C. wheel and axle D. lever

Chemistry
1 answer:
Mars2501 [29]3 years ago
4 0
The drawing above is acting as a B) a screw.

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The strength of gravitational force depends on ___.
MrRissso [65]

Answer:

c.mass and distance

Explanation:

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3 0
3 years ago
ammonia gas is used as refrigerant 0.474 atm. Pressure is required to change 2000 cm3 sample of ammonia initially at 1.0 atm to
Andreas93 [3]

Answer: The pressure required is 0.474 atm

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}V}   (At constant temperature and number of moles)

The equation is,

{P_1V_1}={P_2V_2}

where,

P_1 = initial pressure of gas = 1.0 atm

P_2 = final pressure of gas = ?

V_1 = initial volume of gas = 2000cm^3

V_2 = final volume of gas = 4.22dm^3=4220cm^3    (1dm^3=1000cm^3)

Now put all the given values in the above equation, we get:

{1.0\times 2000}={P_2\times 4200}

P_2=0.474atm

The pressure required is 0.474 atm

5 0
3 years ago
Based on the activity series, which metals could X represent in the reaction below? (Note: The equation is not balanced.)
Nikitich [7]
Answer is: A) Sr (strontium).
The reactivity series<span> is a series of metals from highest to lowest reactivity.</span><span> Metal higher in the reactivity series will displace another.
</span>Strontium is only higher in this group from magnesium. Strontium is stronger reducing agent than magnesium, gives electrons easier.
3 0
3 years ago
What is the only intermolecular force present in nonpolar compounds?
Anvisha [2.4K]
Answer: London dispersion forces
3 0
3 years ago
Describe two ways the material in this lesson
IgorLugansk [536]

Answer:

- Dalton used creativity to modify Proust's experiment and interpret the results.

- Thomson used creativity to interpret the results of the cathode ray tube experiment.

Explanation:

give me brainlest

6 0
3 years ago
Read 2 more answers
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