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3 years ago

What is NaOH in science

Chemistry

2 answers:

xz_007 [3.2K]3 years ago

7 0

Answer: Sodium hydroxide

andre [41]3 years ago

7 0

Answer:It is sodium hydro-oxide also known as caustic soda.It is in organic.

Explanation:

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()

const2013 [10]

Answer:

$\large \boxed{\text{-1276 kJ/mol}}$

Explanation:

You calculate the energy required to break all the bonds in the reactants.

Then you subtract the energy needed to break all the bonds in the products.

CH₃CH₂OH + 3O₂ ⟶ 2CO₂ + 3H₂O

Bonds: 5C-H 1C-C 1C-O 1O-H 3O=O 4C=O 6O-H

D/kJ·mol⁻¹: 413 347 358 467 495 799 467

$\Delta H = \sum{D_{\text{reactants}}} - \sum{D_{\text{products}}}\\\sum{D_{\text{reactants}}} = 5 \times 413 + 1 \times 347 + 1 \times 358 + 1 \times 467 + 3 \times 495 = 3237 + 1485\\=\text{4722 kJ}\\\sum{D_{\text{products}}} = 4 \times 799 + 6 \times 467 =3196 + 2802 = \text{5998 kJ}\\\Delta H = 4722 - 5998= \textbf{-1276 kJ} \\ \text{The overall energy change is $\large \boxed{\textbf{-1276 kJ/mol}}$}.$

6 0

4 years ago

What would the mass be for 500 ml of water?

Margarita [4]

The density of water is about 1.00 g/ml, so 500 ml of water is about 500 g

4 0

4 years ago

Thymine is always joined to

WARRIOR [948]

Adenine.

Thymine always pairs with Adenine while Cytosine always pairs with Guanine on DNA strands.

Hope this helps!

4 0

4 years ago

P 1. Elements X and Y react to form an ionic compound a formula XY. What could be the proton (atomic) numbers of X and Y?

larisa86 [58]

Answer:

the answer is C

Explanation:

This is because group6 elements are diatomic and when they are chemically combined their subscript 2 cancels out

6 0

2 years ago

Balance these scientific equations:

ivanzaharov [21]

Answer:

1) MgO + 2HBr -> MgBr2+H2O

2)2N2+5O2->2N2O5

3)C2H4+2O2->CO2+2H2O

4)Fe+2HCl->FeCl2+H2

7 0

3 years ago

What is NaOH in science ​

What is NaOH in science