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Sedaia [141]
3 years ago
7

Can anyone help me with this since it is a quiz and I am really bad at chemistry!!

Chemistry
1 answer:
lord [1]3 years ago
5 0

Answer:

Down below <3

Explanation:

1. <u> 1 </u> N_{2} + <u> 3 </u> H_{2} ---> <u> 2 </u> NH_{3}

2. <u> 2 </u> KClO_{3} ---> <u> 2 </u> KCl + <u> 3 </u> O_{2}

3. <u> 1 </u> Na_{3}PO_{4} + <u> 3 </u> HCl ---> <u>_ 3_</u> NaCl + <u> 1 </u> H_{3}PO_{4}

4. <u> 1 </u> C_{2}H_{6}O + <u> 3 </u> O_{2} ---> <u> 2 </u> CO_{2} + <u> 3 </u> H_{2}O

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Kory goes outside to grill some hamburgers. He tells Ethan that when you cook meat, a chemical reation is taking place. Ethan sa
Ray Of Light [21]

Answer:

Explanation:

Kory goes outside to grill some hamburgers. He tells Ethan that when you cook meat, a chemical reation is taking place. Ethan says "That's perpostrous!" Is Kory Correct??

absolutely Kory is correct

evidence of a chemical reaction are

new odor and or taste

change in color

signs of bubbling

direct effect of temperature on rate of change

evidence of a new substance being formed

we observe all these when we grill meat.

7 0
2 years ago
g All of the molecules below have polar bonds but only one of the molecules is a polar molecule. Which one is a polar molecule?
lbvjy [14]

Answer: NF_3

Explanation:

Geometrical symmetry of the molecule and the polarity of the bonds determine the polarity of the molecule.

The molecule that has zero dipole moment that means it is a geometrically symmetric molecule and the molecule which has some net dipole moment means it is a geometrically asymmetric molecule.

As the molecule is symmetric, the dipole moment will be zero as dipole moments cancel each other and the molecule will be non-polar.

As the molecule is asymmetric, the dipole moment will not be zero and the molecule will be polar.

Example: NF_3

Thus, we can say that NF_3 is a polar molecule.

4 0
3 years ago
What is the sequence of energy transformations that occur in a nuclear reactor?
fredd [130]
B. nuclear to thermal to mechanical to electrical
7 0
3 years ago
Read 2 more answers
Substance X is a compound containing 632mg of manganese and 368mg of oxygen. Substance X is shown
defon

The empirical formula : MnO₂.

<h3>Further explanation</h3>

Given

632mg of manganese(Mn) = 0.632 g

368mg of oxygen(O) = 0.368 g

M Mn = 55

M O = 16

Required

The empirical formula

Solution

You didn't include the pictures, but the steps for finding the empirical formula are generally the same

  • Find mol(mass : atomic mass)

Mn : 0.632 : 55 = 0.0115

O : 0.368 : 16 =0.023

  • Divide by the smallest mol(Mn=0.0115)

Mn : O =

\tt \dfrac{0.0115}{0.0115}\div \dfrac{0.023}{0.0115}=1\div 2

The empirical formula : MnO₂

8 0
3 years ago
How many moles of sodium will react with water to form sodium hydroxide and 4.0 moles of hydrogen?
11Alexandr11 [23.1K]
It is 4/10 of moles is this ane halp?
5 0
3 years ago
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