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AlekseyPX
3 years ago
14

An iron fence is left on painted and it reacts with the oxygen in the air form forming rust. the formation of the rest is an oxi

dation-reduction reaction but it is also an example of a _____ reaction (1 point)
8. cooking requires continuous addition of energy to the chemical reactions the are taking place the chemical reaction involved in cooking can be described as______? (1 point)
9. measuring how quickly a reactanat disappears in one way to measure the ______of the reaction
Chemistry
2 answers:
nekit [7.7K]3 years ago
7 0
<span>it's synthesis, from a source

</span>
Alenkinab [10]3 years ago
3 0
<span>An iron fence is left on painted and it reacts with the oxygen in the air form forming rust. the formation of the rest is an oxidation-reduction reaction but it is also an example of a double-displacement reaction. 

</span><span>cooking requires continuous addition of energy to the chemical reactions the are taking place the chemical reaction involved in cooking can be described as a chemical change.

</span><span>measuring how quickly a reactanat disappears in one way to measure the rate of the reaction</span>
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What mass of O2 is needed to produce 4.5 moles of CO2?
Ahat [919]

Answer:

Explanation:

45

4 0
3 years ago
What term best describes the type of reaction that happens when a single element reacts with a molecule or compound, producing a
gogolik [260]

The answer is

C. A single replacement reaction (acid reactions)

An example would be the reaction between simple metal Potassium (K) and Water (H2O), resulting in a much solid compound called Potassium Hydroxide (KOH) and hydrogen gas is set free.

K+H2O --> KOH

5 0
3 years ago
Read 2 more answers
!! ANSWER QUICK !!
kari74 [83]

Answer:

I can use a dichotomous key. It helps me classify objects by sorting it out with "yes" and "no" questions.

or

I can use a Punnett Square. It helps me classify what genes the offspring will receive simply by figuring out the recessive and dominant genes as well as the hetzygous and homzygous.

Now give an example of which ever chart you choose by drawing it if that is required. For the Punnett Square label each of the squares Top right Hetzygous, top left dominant, bottom left recessive, bot-tom right homzygous. And for the dichotomous key put a 5-7 length branch showing the animals that have fur, can breathe under water, what cannot or doesn't have those traits. or something similar

Hopefully this helps :)

3 0
3 years ago
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What volume would 312g of alcohol occupy
Aleksandr-060686 [28]

Answer:

Density=Mass/volume

0.91g/ml=312g/volume

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Explanation:

3 0
3 years ago
which solution below would be considered the most acidic?a. 2.9 x 10-4 m hclb. 4.5 x 10-5 m hno3c. 1.0 x 10-7 m nacld. 1.5 x 10-
kkurt [141]

Answer:

a. 2,9x10⁻⁴ M HCl

Explanation:

A solution is considered acidic when its concentration of H⁺ is higher than 1x10⁻⁷. The higher concentration of H⁺ will be the most acidic solution.

a. 2,9x10⁻⁴ M HCl. In water, this solution dissolves as H⁺ and Cl⁻. That means concentration of H⁺ is 2,9x10⁻⁴ M.

b. 4,5x10⁻⁵M HNO₃. In the same way, concentration of H⁺ is 4,5x10⁻⁵M.

c. 1,0x10⁻⁷M NaCl. As this solution doesn't produce H⁺, the solution is not acidic

d. 1,5x10⁻²M KOH. This solution produce OH⁻. That means the solution is basic nor acidic.

Thus, the solution considered the most acidic is a. 2,9x10⁻⁴ M HCl, because has the higher concentration of H⁺.

I hope it helps!

7 0
3 years ago
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