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Brums [2.3K]
3 years ago
14

Please help! brainliest, rattings, thanks, etc.

Chemistry
1 answer:
pochemuha3 years ago
3 0

According to Newton's first law of motion, it takes an unbalanced force to move an object at rest.

I hope this helps :)

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I just started learning about kinetic molecular theory, and I’m not sure how to answer the question circled below
lions [1.4K]

Answer : The value of 'R' is 0.0821\text{ L atm }mol^{-1}K^{-1}

Solution : Given,

At STP conditions,

Pressure = 1 atm

Temperature = 273 K

Number of moles = 1 mole

Volume = 22.4 L

Formula used :     R=\frac{PV}{nT}

where,

R = Gas constant

P = pressure of gas

T = temperature of gas

V = volume of gas

n = number of moles of gas

Now put all the given values in this formula, we get the values of 'R'.

R=\frac{(1atm)\times (22.4L)}{(1mole)\times (273K)}

R=0.0821\text{ L atm }mol^{-1}K^{-1}

Therefore, the value of 'R' is 0.0821\text{ L atm }mol^{-1}K^{-1}.

7 0
3 years ago
How can you tell which layer is the youngest?
erastovalidia [21]

Answer:

The youngest rock layers are at the top and the oldest are at the bottom, which is described by the law of superposition.

Explanation:

6 0
3 years ago
How many inches is in 10 cm? Use dimensional analysis to show your work. Include the work in your answer.
Mumz [18]

Answer:

To get the answer divide 10cm by 2.54

Explanation:

\frac{10}{2.54} \\  = 10 \div  \frac{254}{100} \\  = 10 \times  \frac{100}{254} \\  =  \frac{1000}{254} = 3.937inches

Hope this helps

6 0
3 years ago
In a chemical equation, the symbol that takes the place of the words reacts with is an) Example HCI + KOH-KCI + H2O
rodikova [14]
An arrow means a reaction!
5 0
3 years ago
Describe how the freeze-thaw cycle of ice will change the shape of this rock over time. PLSSSS HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!
Ludmilka [50]

Freeze-Thaw Weathering

This action can widen the cracks in the rock, and when the temperature rises above freezing, the ice thaws, allowing the water to seep further into the cracks. As this process of freezing and thawing happens repeatedly, the rock begins to weaken and eventually breaks apart into angular fragments.

6 0
3 years ago
Read 2 more answers
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