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Stolb23 [73]
3 years ago
13

Omg I’ve been stressing for the past minutes can someone please help me

Chemistry
2 answers:
Alona [7]3 years ago
5 0

Answer:

I think it would be the last answer

Explanation:

SVEN [57.7K]3 years ago
4 0
Last answer i’m pretty sure
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Given a fixed amount of gas help at a constant pressure, calculate the temperature to which the gas would have to be changed if
PIT_PIT [208]

Answer:

592 K or 319° C

Explanation:

From the statement of Charles law we know that the volume of a given mass of gas is directly proportional to its absolute temperature at constant pressure. Thus;

V1/T1= V2/T2

Initial volume V1 = 1.75 L

Initial temperature T1= 23.0 +273 = 296 K

Final volume V2= 3.50 L

Final temperature T2 = the unknown

T2= V2T1/V1= 3.50 × 296 / 1.75

T2 = 592 K or 319° C

4 0
3 years ago
6. An alloy of iron contains 75.0% iron and 25.0% other elements. How many grams of iron are present in 150. g of the alloy?
Hoochie [10]

Answer:

108.5

Explanation:

half of 150 is 75 and half of that is 32.5. Add that to 75 and you'll get your answer

3 0
3 years ago
A solid element that is malleable, a good conductor of electricity, and reacts with oxygen is classified as a(1) metal(2) metall
sukhopar [10]
Metalloid is the closest because noble gases are obviously out, nonmetals are terrible conductors, and metals are not malleable 
6 0
3 years ago
Read 2 more answers
What is the ph of a solution that has a [h ] = 0. 0039 m?
Sedbober [7]

The pH of a solution that has a H⁺ ion concentration is 0.0039M is 2.4.

<h3>What is pH?</h3>

pH of any solution gives idea about the acidity or basicity of solution and it will be calculated as:

pH = -log[H⁺]

Given that, concentration of H⁺ ion = 0.0039 M

On putting tis value in pH equation, we get

pH = -log(0.0039)

pH = -(-2.4) = 2.4

Hence required value of pH is 2.4.

To know more about pH, visit the below link:
brainly.com/question/24595796

#SPJ1

6 0
2 years ago
Can someone help with this please? My teacher isnt responding to any of mine or my classmates requests for help
sergiy2304 [10]

Answer:

CO2 consists of individual molecules with one central carbon atom double bonded to two oxygen atoms. Silicon does not form double bonds with oxygen. CO2 is gas but SiO2 is a solid because SiO2 has a giant molecular structure. CO2 has a simple molecular structure, and because of this, CO2 is gas but SiO2 is solid at room temperature.

6 0
3 years ago
Read 2 more answers
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