2 years ago

Part B

Chemistry

1 answer:

Y_Kistochka [10]2 years ago

4 0

Answer:

1. conduction

2. Convection

3. Radiation

You might be interested in

Which of these equations best summarizes photosynthesis?

elena-14-01-66 [18.8K]

Answer: C

Explanation:

Sunlight

6 CO2 + 6 H2O --------------> C6H12O6 + 6 O2

Chlorophyll

Carbon(IV)oxide Water Glucose Oxygen

7 0

3 years ago

Convert 2.39 x 1022 molecules of water into moles of water

torisob [31]

Answer:

$0.0397\ \text{mol}$

Explanation:

Number of molecules of water = $2.39\times 10^{22}$

$N_A$ = Avogadro's number = $6.022\times 10^{23}\ \text{mol}^{-1}$

Number of moles is given by

$\dfrac{2.39\times 10^{22}}{6.022\times 10^{23}}$

$=0.0397\ \text{mol}$

The number of moles of water is $0.0397\ \text{mol}$ .

6 0

3 years ago

How much CaCO3 would have to be decomposed to produce 247 g of CaO

vovangra [49]

441 g CaCO₃ would have to be decomposed to produce 247 g of CaO

<h3>Further explanation</h3>

Reaction

Decomposition of CaCO₃

CaCO₃ ⇒ CaO + CO₂

mass CaO = 247 g

mol of CaO(MW=56 g/mol) :

$\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{247}{56}\\\\mol=4.41$

From equation, mol ratio CaCO₃ : CaO = 1 : 1, so mol CaO :

$\tt \dfrac{1}{1}\times 4.41=4.41$

mass CaCO₃(MW=100 g/mol) :

$\tt mass=mol\times MW\\\\mass=4.41\times 100\\\\mass=441~g$

6 0

3 years ago

How many molecules of he are contained in a 10.0 l tank at 7.53 atm and 485 k?

ankoles [38]

Answer:

1.126 x 10^22

Explanation:

pV = nRT

7.53 x 10 = n x 8.31 x 485

n = (7.53 x 10) / (8.31 x 485) = 0.0187 moles

M = n x Avogadros number

0.0187 x 6.02 x 10^23 = 1.126 x 10^22

4 0

3 years ago

Water has a density of 1g/ml. what is the mass of the water if it fills a 10ml container?

notka56 [123]

It's 10.
Mass = density x volume
M = 1g/ml(10ml) = 10g

8 0

3 years ago

Read 2 more answers