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Arlecino [84]
3 years ago
15

What kind of questions can science answer

Chemistry
1 answer:
IrinaK [193]3 years ago
5 0

Answer:

hypothesis

Explanation:

a question that can be answered wity a hypothesis is a question a scientist can answer

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Determine the molecular mass ratio of two gases whose rates of effusion have a ratio of 16 : 1.
Usimov [2.4K]
Answer is: <span>the molecular mass ratio of two gases is 1 : 256.
</span>rate of effusion of gas1 : rate of effusion of gas = 16 : 1.<span>
rate of effusion of gas1 = 1/√M(gas1).
rate of effusion of gas2 = 1/√M(gas2).
rate of effusion of gas1 = rate of effusion of gas2 </span>· 16<span>.
</span>1/√M(gas1) = 1/√M(gas2) · 16 /².
<span>1/M(gas1) = 1/M(gas2) </span>· 256.
<span>M(gas1) </span>· 256 = M(gas2).<span>

</span>
8 0
3 years ago
A proton has (blank)<br> charge.
Alekssandra [29.7K]

Hello there! A proton has a positive charge of (+1) and has a lesser mass compared to a neutron! Hope this helps! Have a great day!

3 0
3 years ago
Which statement about bases is incorrect? Select one: a. All bases contain hydroxide ions. b. All bases taste bitter. c. All bas
NemiM [27]

Answer

a

Explanation:

While the Arrhenius definition of a base agrees with this statement, the Bronsted-Lowry and Lewis definitions don't. Under Bronsted-Lowry, a base is anything that can accept a proton (ex// NH3). Under lewis, it is anything that can donate an electron (ex// Cl-).

Bases are usually bitter and turn red litmus paper blue, and are slippery.

6 0
3 years ago
How many moles of NO2 are present in 138.01 g
Sophie [7]

Answer:

3.0002 moles

Explanation:

Data Given:

mass of NO₂ = 138.01 g

No. of moles NO₂ = ?

Solution

To find mass of sample mole formula will be used

mole formula

          no. of mole = mass in grams / molar mass

Molar mass of NO₂ = 14 + 2(16)

Molar mass of NO₂ = 14 + 32 = 46 g/mol

Put values in above equation

               no. of mole = 138.01 g / 46 g/mol

               no. of mole = 3.0002 moles

no. of mole of NO₂ = 3.0002 moles

8 0
3 years ago
Pfderghrkldesfnckasjnfckadsjdncvfl.asknd;kjf
ehidna [41]

Answer:

ikr

Explanation:

8 0
4 years ago
Read 2 more answers
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