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denpristay [2]
3 years ago
12

Is baking cookies a chemical or physical change

Chemistry
2 answers:
Natalija [7]3 years ago
6 0

Answer: Its a chemical change because the materials are mix to make the dough

I hope that I help you.

k0ka [10]3 years ago
5 0

Answer:

chemical change

Explanation:

When the batter heats up, the sugar breaks down into glucose and fructose, which forms a polymer chain, giving the cookie its light brown crust. When sodium baking soda heats up, it causes a chemical reaction.

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How are humans involved in this cycle
Lana71 [14]

Answer: Humans are moving more carbon into the atmosphere from other parts of the Earth system. More carbon is moving to the atmosphere when fossil fuels, like coal and oil, are burned. More carbon is moving to the atmosphere as humans get rid of forests by burning the trees.

Explanation:

8 0
3 years ago
Read 2 more answers
can someone explain how this is wrong? I don’t think it is wrong but my chem teacher deducted points. so why?
ruslelena [56]

Answer: measure the mass (48.425g) of KCl

Explanation:

To prepare the solution 0.65M KCl we must measure the mass of KCl that would be dissolved in 1L of the solution. This can be achieved by:

Molar Mass of KCl = 39 + 35.5 = 74.5g/mol

Number of mole (n) = 0.65

Mass conc of KCl = n x molar Mass

Mass conc of KCl = 0.65 x 74.5 = 48.425g

Therefore, to make 0.65M KCl, we must measure 48.425g

7 0
3 years ago
In a series circuit there are 17 light bulbs, each providing 1 ohm of resistance. What is the total resistance?
Sauron [17]

Answer:

17 ohms

Explanation:

Given that,

In a series circuit there are 17 light bulbs, each providing 1 ohm of resistance.

We need to find the total resistance of the circuit.

The equivalent resistance for series combination is given by :

R_{eq}=R_1+R_2+....

For 17 light bulbs, the equivalent resistance is given by :

R_{eq}=R+R+....\text{upto 17 terms}\\\\R_{eq}=17R\\\\=17

Hence, the total resistance is 17 ohms. Hence, the correct option is (d).

7 0
3 years ago
What is the relation between work done height mass and acceleration due to gravity​
Zanzabum

Explanation:

Potential energy is the the relationship between work done height mass and acceleration due to gravity, because of this some objects also experience kinetic energy due to the factors mentioned above

6 0
1 year ago
Is honey a heterogeneous or homogeneous mixture?
Amiraneli [1.4K]
Homogeneous mixture because it contains the same properties as homogeneous 
6 0
3 years ago
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