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yanalaym [24]
3 years ago
5

What chemical is discovered to react to light in the 1700s?

Chemistry
2 answers:
WARRIOR [948]3 years ago
5 0
When Scheele discovered oxygen he called it "fire air" as it supported combustion. The answer is oxygen.
leonid [27]3 years ago
4 0
Oxygen or maybe hydrogen
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Please help! Will mark brainliest!
seraphim [82]
I believe its A. please correct me if im wrong! <3
3 0
3 years ago
Read 2 more answers
Three different rocks that each weigh 50 grams are put out in the sunlight. After two hours, they are all at the same temperatur
Brilliant_brown [7]

Answer:

All rocks have same thermal conductivity.

Explanation:

Rocks are heated with the sunlight exposure. Different types of rocks have different thermal conductivity. The heat energy of the rocks is measure in Joules. The size and thermal conductivity of the rocks is important property which determines their heating capacity.

8 0
3 years ago
Which activity involving a segment of DNA does not result in a mutation?
FinnZ [79.3K]
Adenine is added to the sequence

8 0
4 years ago
Read 2 more answers
Consider the reaction cl2(g) + i2(g) &lt;=&gt; 2 icl(g), which is endothermic as written. what would be the effect on the equili
bogdanovich [222]

The given equilibrium reaction is,

Cl_{2}(g)+I_{2}(g)+Heat2ICl(g)

According to Le Chatelier's principle states that when a system in equilibrium is disturbed by varying conditions like concentration, pressure, and temperature of the system, the system tries to counter act the affect by shifting the equilibrium towards the required side.

When Cl_{2} is removed from the system, the concentration of chlorine (Cl_{2}) decreases, the equilibrium is disturbed. So, the system tries to re-establish the equilibrium by moving in that direction which produces more of chlorine, that is towards the reactant side.

The correct answer would be: 1. reaction would go to the left, making more "reactants"

5 0
4 years ago
The following reaction was performed in a sealed vessel at 791 ∘C : H2(g)+I2(g)⇌2HI(g) Initially, only H2 and I2 were present at
OlgaM077 [116]

Answer:

4.31 × 10²

Explanation:

Equation of the reaction;

H_{2(g)} + I_{2(g)}     ⇌     2HI_{(g)

The ICE Table is shown as follows:

                            H_{2(g)}         +         I_{2(g)}        ⇌     2HI_{(g)

Initial                    3.10                     2.50                  0      

Change                 - x                       -x                     + 2x      

Equilibrium        (3.10 - x)                0.0800              2x

From I_{2(g)}   ;

We can see that 2.50 - x = 0.0800

So; we can solve for x;

x = 2.50 - 0.0800

x = 2.42

H_{2(g)}  which = (3.10 -x) will be :

= 3.10 - 2.42

= 0.68

2HI_{(g) = 2x

= 2 (2.42)

= 4.84

K_c = \frac{[HI]^2}{[H_2][I_2]}

K_c = \frac{(4.84)^2}{(0.68)(0.0800)}

K_c =\frac{23.4256}{0.0544}

K_c = 430.62

K_c ≅ 431

K_c = 4.31 × 10²

6 0
3 years ago
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