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Zigmanuir [339]
3 years ago
15

NEED THIS NOW PLZ!!!

Chemistry
2 answers:
Norma-Jean [14]3 years ago
7 0

Answer:

Centimeters per minute​

Explanation:

Speed measurement is formated as [distance] per [time], like miles per hour.

B and C are incorrect because they are [time] per [distance]

A is incorrect because it is [time] per [time]

vitfil [10]3 years ago
7 0

Answer : The correct option is (D) Centimeters per minute​

Explanation :

Speed : It is defined as the distance traveled by the object per unit time.

The unit of distance are, kilometer, meter, centimeter etc.

The unit of time are, minute, second, hour etc.

Formula used :

Speed=\frac{Distance}{Time}

From the given options, the correct measurement of speed is centimeters per minute​.

Hence, the correct option is (D) Centimeters per minute​

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In at least three sentences, explain three disadvantages associated with hydrogen fuel use.
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Here are some disadvantages, is that nitrogen dioxide is a toxic gas and it can still be harmful when ingested by human, also critics of hydrogen fuel cells argue that although these cells do not emit carbon after burning, they give out nitrogen dioxide and other emissions.

Hope this helps

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Which type of weathering helped to form barrier islands
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Barrier islands typically have sand in the beach zone and dune field, and mud in the back-barrier. Overwash deposits sand in the back-barrier.

Barrier islands form in three ways. They can form from spits, from drowned dune ridges or from sand bars. Longshore drift is the movement of sand parallel to the shore caused by the angle of the waves breaking on the beach. ... When a storm such as a hurricane digs an inlet through the spit a barrier island is formed.

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3 years ago
Four people weigh a standard mass of 10.00g on the same balance. Which of the following sets of readings suggests measurements t
Svetach [21]
An example of accurate but not precise would be 3 people weigh a 10g sample. the weights are 0g, 10g, & 20 grams. the scale is way off but the weights average to the right thing.
precise but not accurate would weighing a 10g sample 3 times and getting 5.5, 5.4, & 5.5. they'e all incredibly similar therefore precise but its nowhere near 10, so not accurate. 
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5 0
3 years ago
What is the Molecular Mass of CuSo4.5H2O​
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The answer to this question is 159.609 g/mol
8 0
3 years ago
Read 2 more answers
C. How many moles of gas are in a container with a volume of 9.55 mL at 35 °C and a pressure of 895 mmHg?
olya-2409 [2.1K]

Answer: There are 4.45\times 10^{-4}moles of gas are in a container with a volume of 9.55 mL at 35 °C and a pressure of 895 mmHg

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 895 mm Hg= 1.18 atm  (760 mm Hg= 1 atm)

V = Volume of gas = 9.55 ml = 0.00955 L   (1 L=1000ml)

n = number of moles = ?

R = gas constant =0.0821Latm/Kmol

T =temperature =35^0C=(35+273)K=308K

n=\frac{PV}{RT}

n=\frac{1.18atm\times 0.00955L}{0.0821L atm/K mol\times 308K}=4.46\times 10^{-4}moles

Thus there are 4.45\times 10^{-4}moles of gas are in a container with a volume of 9.55 mL at 35 °C and a pressure of 895 mmHg

5 0
3 years ago
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