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3 years ago

What attracts heat more? black or aluminum foil?

Chemistry

2 answers:

Inessa05 [86]3 years ago

8 0

Answer:

"ALUMINUM FOIL" will conduct heat much more effectively than black construction paper.

Svetach [21]3 years ago

6 0

Answer:

$\pink{\mid{\fbox{\tt{What attracts heat more?}}\mid}}$

Black – the color that absorbs all visible wavelengths of light – attracts the most heat, followed by violet, indigo, blue, green, yellow, orange and red, in descending order.

$\pink{\mid{\fbox{\tt{ black or aluminum foil? }}\mid}}$

Black Foil, BlackWrap, Lindcraft Foil, Cinefoil and Shadowfoils are all names for black aluminum foil that's primarily used to block out light and is attached to light fixtures and or their barn doors. Used in any situation where extreme heat might otherwise burn flags or cutters.

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Gas-to-liquid synfuel production can produce diesel, naptha and paraffin. The formation of these products usually involves _____

Goshia [24]

The best and most correct answer among the choices provided by the question is the second choice. The formation of gas-to-liquid synfuel usually involves the removal of carbon atoms from the fuel adding highly acidic substances such as hydrochloric acid. I hope my answer has come to your help. God bless and have a nice day ahead!

3 0

3 years ago

Read 2 more answers

Adding which of the following substances will decrease the solubility of calcium chloride in water: CaCl2(s) Ca2+(aq) + 2 Cl–(aq

Korvikt [17]

Answer:

Option b. Sodium chloride.

Explanation:

Consider the dissociation equilibrium of $\rm CaCl_2 \; (s)$ in water:

$\rm CaCl_2 \; (s) \rightleftharpoons Ca^{2+} \; (aq) + 2\; Cl^{-}\; (aq)$ .

By the Le Chatelier's Principle, increasing the concentration of either product will shift the equilibrium to the left. Some $\rm CaCl_2 \; (s)$ that was initially dissolved will precipitate out of the solution. This effect is called the common-ion effect.

For this $\rm CaCl_2 \; (s)$ solution, the products of dissociation are

$\rm Ca^{2+}$ ions, and
$\rm Cl^{-}$ ions.

Adding either to the solution will trigger the common-ion effect and reduce the solubility of $\rm CaCl_2 \; (s)$ .

In the two choices,

Sodium chloride $\rm NaCl$ will add $\rm Na^{+}$ and $\rm Cl^{-}$ ions to the solution.
Sodium fluoride $\rm NaF$ will add $\rm Na^{+}$ and $\rm F^{-}$ ions to the solution.

$\rm NaCl$ contains $\rm Cl^{-}$ ions. It is capable of triggering the common-ion effect. However $\rm NaF$ contains neither $\rm Ca^{2+}$ ions nor $\rm Cl^{-}$ ions. It will not trigger the common-ion effect.

6 0

3 years ago

Pentaborane-9,

frozen [14]

Given question is incomplete. The complete question is as follows.

Pentaborane ( $B_{5}H_{9}$ ) is a colorless highly reactive liquid that will burst into flames when exposed to oxygen.the reaction is:

$2B_{5}H_{9}(l) + 12O_{2} \rightarrow 5B_{2}O_{2}(s) + 9H_{2}O(l)$

Calculate the kilojoules of heat released per gram of the compound reacted with oxygen.the standard enthalpy of formation $B_{5}H_{9}(l)$ , $B_{2}O_{3}(s)$ , and $H_{2}O(l)$ are 73.2, -1271.94, and -285.83 kJ/mol, respectively.

Explanation:

As the given reaction is as follows.

$2B_{5}H_{9}(l) + 12O_{2} \rightarrow 5B_{2}O_{2}(s) + 9H_{2}O(l)$

Therefore, formula to calculate the heat energy released is as follows.

$\Delta H = \sum H_{products} - \Delta H_{reactants}$

Hence, putting the given values into the above formula is as follows.

$\Delta H = \sum H_{products} - \Delta H_{reactants}$

= $5 \times (-1271.94 kJ/mol) + 9 \times (-285.83 kJ/mol) - 2 \times (73.2 kJ/mol) - 12(0)$

= -9078.59 kJ/mol

Since, 2 moles of Pentaborane reacts with oxygen. Therefore, heat of reaction for 2 moles of Pentaborane is calculated as follows.

$\frac{\Delta H}{2 \times \text{molar mass of pentaborane}}$

$\frac{-9078.59 kJ/mol}{2 \times 63.12 g/mol}$

= -71.915 kJ/g

Thus, we can conclude that heat released per gram of the compound reacted with oxygen is 71.915 kJ/g.

8 0

3 years ago

Be sure to answer all parts. Give the name and the formula of the compound formed from the following elements: (a) bromine and r

MA_775_DIABLO [31]

Answer:

These are the chemical names and molecular formula of the compounds formed from these elements:

Rubidium + Bromine = Rubidium bromide, RbBr
Strontium + Sulphur = Strontium sulfide, SrS
Barium and Chlorine = Barium chloride,  $BaCl_{2}$

7 0

3 years ago

Gravity and magnetism are ________ forces.

vekshin1

Gravity and magnetism are not the same thing. In fact, they are completely separate forces. Gravity is a force that acts between any two objects with mass. ... Magnetism can either pull the two objects together or push them apart, depending on which way the magnets point.

Hope this helps!

Please give brainliest!

5 0

3 years ago

What attracts heat more? black or aluminum foil?​

What attracts heat more? black or aluminum foil?