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3 years ago

An amplifying device that indicates the presence of ionizing particles

Chemistry

1 answer:

SpyIntel [72]3 years ago

7 0

Answer:

Geiger counter-countering

Explanation:

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During _____________ there are 24 hours of daylight at the North Pole.

Tresset [83]

Answer:

summer

The North Pole stays in full sunlight all day long throughout the entire summer (unless there are clouds)

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3 years ago

Sam wants to demonstrate how water changes from a solid to a gas. He places ice in a pot on a stove. What variable is causing wa

olganol [36]

Hello,

The answer is option A "the heat from the stove".

Reason:

The answer is option A because the variable the heat from the stove is causing the ice to change into water. Its not option B because thats not in the procedures. Its not option C because it is not a variable. Its also not D because thats also not a variable.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

8 0

3 years ago

Read 2 more answers

86.94 meters to centimeters 8,694

ivanzaharov [21]

True it is 8,694 cm

Hope it helps!

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3 years ago

How many moles of aluminum oxide (Al2O3) are in a sample with a mass of 204. 0 g? 1. 000 2. 000 3. 0.

Aleks [24]

Answer:

1. 000.2

Explanation:

 aluminum oxide made of moles or atoms less then other elements need to decrease

6 0

3 years ago

In one on the compounds that contains only oxygen and nitrogen, 3.50 g of nitrogen combines with 2.00 g of oxygen. In another, 0

BigorU [14]

Answer:

Explanation:

The law of multiple proportions states that if two elements X and Y combine together to form more than one compound, then the several masses of X which chemically combine with a fixed mass of Y is in simple ratio.T

FIRST CASE ;

Molar mass of Nitrogen gas = 28 g/mol

Number of moles of Nitrogen gas = Mass/molar mass = 3.50/28 = 0.125 moles

Number of moles of Oxygen gas = Mass/molar mass = 2.00/32 = 0.0625 moles

Hence the ratio of number of moles of N2 to O2 will be 0.1295 : 0.0625 or 2:1

Similarly for the SECOND CASE ;

Molar mass of Nitrogen gas = 28 g/mol

Number of moles of Nitrogen gas = Mass/molar mass = 0.875/28 = 0.03125 moles

Number of moles of Oxygen gas = Mass/molar mass = 1/32 = 0.03125 moles

Hence the ratio of number of moles of N2 to O2 will be 0.03125 : 0.03125 or 1:1

4 0

3 years ago