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marshall27 [118]
3 years ago
15

Which type of heat transfer does not rely on matter?

Chemistry
2 answers:
kolbaska11 [484]3 years ago
6 0
The answer is radiation.
LenKa [72]3 years ago
5 0

Answer: D. Radiation

Explanation:

i got it right on my exam

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Is aliphatic alcohol hydroxy derivative??​
Alisiya [41]

Hydroxy derivatives of aliphatic hydrocarbons are called as alcohols.

4 0
2 years ago
Extra Practice...<br> 1) What is the speed of light?
miss Akunina [59]

What is the speed of light?

The speed of light is 299,792,458 meters per second.

4 0
3 years ago
a chemist reacts 150.0 grams of HCl with an excess of MnO2. if the following reaction occurs: MnO2+4HCl=MnCl2+2H2O+Cl2 how many
krok68 [10]

Answer:

There are formed 98.05 g of MnCl₂

Explanation:

The reaction is this one:

MnO₂ + 4 HCl   →  MnCl₂ +  2 H₂O + Cl₂

First of all, determinate moles. Divide mass /molar mass

150 g / 36.45 g/m = 4.11 moles of HCl

Ratio between HCl and MnCl₂ is 4:1

4 moles of HCl produce 1 mol of Chloride

4.11 moles of HCl  'll produce (4.11 . 1)/ 4 =1.03 moles of chloride

Molar mass . Moles = Mass

Molar Mass MnCl₂ = 95.2 g/m

95.2 g/m  . 1.03 moles = 98.05 grams

4 0
3 years ago
Read 2 more answers
When a solid with a mass of 53.78 g is added to 50.0 ml of water in a graduated cylinder, the volume increases to 56.4 ml. Calcu
Bad White [126]

Answer:

<h3>The answer is 8.40 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

volume = final volume of water - initial volume of water

volume = 56.4 - 50 = 6.4 mL

We have

density =  \frac{53.78}{6.4}  \\  = 8.403125

We have the final answer as

<h3>8.40 g/mL</h3>

Hope this helps you

3 0
2 years ago
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.6-L bulb, then filled
aleksandrvk [35]

Answer:

The gas was N₂

Explanation:

V = 3.6L

P = 2.0 atm

T = 24.0°C = 297K

R = 0.0821 L.atm/K.mol

m = 8.3g

M = molar mass = ?

Using ideal gas equation;

PV = nRT

n = no. Of moles = mass / molar mass

n = m/M

PV = m/M * RT

M = mRT / PV

M = (8.3*0.0821*297) / (2.0*3.6)

M = 28.10

Since X is a diatomic molecule

M = 28.10 / 2 = 14.05 g/mol

M = Nitrogen

X = N₂

5 0
3 years ago
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