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ddd [48]
3 years ago
12

How much time does it take a cheetah to travel 300 meters at a speed of 15 meters per second

Chemistry
2 answers:
PilotLPTM [1.2K]3 years ago
8 0

Answer: 20 s

Explanation: speed is expressed as distance over time. so we will derive the equation to find t.

v = d /t so derive first then t=d/v

t= 300m / 15 m/s cancel m and the remaining unit is s which is the unit for time

cluponka [151]3 years ago
5 0

Answer:

20 seconds

Explanation:

if hes travelling to get to 300 meters, you have to divide the distance(300) by time (15) to get your answer of 20 seconds

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2 KCIO3 - 2 KCl + 302;<br>Type of Reaction?<br><br>​
Ierofanga [76]

Answer:decomposition reaction

Explanation:it is a decomposition reaction

6 0
3 years ago
How many moles of gas are in a 1.0 liter canister if the temperature of the canister is 100 K and the pressure is 100 atmosphere
ladessa [460]

Answer:

n = 12.18 moles

Explanation:

Given that,

The volume of a canister, V = 1 L

The temperature of the canister, T = 100 K

Pressure, P = 100 atm

We need to find the number of moles of gas. Let there are n number of moles. We know that,

PV = nRT

Where

R is gas constant, R = 0.0821 L*atm/mol*K

n=\dfrac{PV}{RT}\\\\n=\dfrac{100\times 1}{0.0821 \times 100}\\\\n=12.18\ moles

Hence, there are 12.18 moles of gas.

4 0
2 years ago
Last week you reacted magnesium with a hydrochloric acid aqueous solution and hydrogen gas was produced. Let's say that you coll
miv72 [106K]

Answer:

69.8 kilo Pasacl is the pressure of the hydrogen gas.

Explanation:

Mg+2HCl\rightarrow MgCl_2+H_2

Pressure at which hydrogen gas collected = p = 101.2 kilo Pascals

Vapor pressure water = p^o = 31.4 kilo Pascals

The pressure of hydrogen gas = P

The pressure at which gas was collected was sum of vapor pressure of water and hydrogen gas.

p=P+p^o

P =p-p^o=101.2 kPa-31.4 kPa=69.8 kPa

69.8 kilo Pasacl is the pressure of the hydrogen gas.

3 0
3 years ago
Why is the mass of an iron atom different from the mass of a copper atom?
Jobisdone [24]
They have different number of Neutrons and protons, so their masses are different

Hope this helps!
6 0
3 years ago
State three properties that make copper suitable for use in plumbing.
marusya05 [52]

- low conductivity

- generally non-toxic

- ductile

- doesn’t corrode as fast as other metals

6 0
2 years ago
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