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3 years ago

13

Suppose you held a lighted match to a solid hunk of wood and another match to a pile of wood shavings. Which form of wood will c

atch fire more easily?

1 answer:

Reptile [31]3 years ago

0 0

Answer:

Wood

Explanation:

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What is the name of the compound with the formula niso3?

serg [7]

Nickle (II) sulfite - b/c the charge on Ni can be +2 or +3 i Believe. SO3 has a charge of -2 the you need nickel II (+2) to make a proper ionic bond

3 0

3 years ago

xidation in redox reactions involves a. a loss of electrons and an increase in the oxidation number b. a gain of electrons and a

Strike441 [17]

Answer:

Option a is the right one

Explanation:

Redox reactions are defined as the reactions where one element is oxidized (so the oxidation state is increased); and another element is reduced (oxidation state decreases). These changes in the oxidations states are defined by a transference of electrons.

When the oxidation state decrease → reduction → the element gains electrons

When the oxidation state increase → oxidation → the element release electrons

4 0

3 years ago

The energy required to start a reaction is called _____.

Cerrena [4.2K]

D..........!!!!!!!!!!!!

4 0

3 years ago

If two fatty acids, glycerol, and a phosphate group undergo a dehydration reaction, what molecule forms

GrogVix [38]

<h3>Answer:</h3>

A Phospholipid is formed.

<h3>Explanation:</h3>

The reaction of fatty acids, glycerol and phosphoric acid is given below. In this reaction the carboxylic groups of fatty acids and the hydrogyl groups of glycerol undergo an Esterification Reaction with the elimination of two water molecules and formation of Ester functional group. Also, the third hydroxyl group of glycerol undergo dehydration reaction with phosphoric acid. The resulting molecule is known as phospholipid.

Biologically, Phospholipids are found in the cell membranes. The long hydrocarbon chains of fatty acids acts as hydrophobic (water fearing) tails and the phosphate group acts as hydrophilic (water loving) head. They form a barrier protecting the internal environment of cell from external surrounding.

7 0

4 years ago

Experiment Initial [A], mol/L Initial [B], mol/L Initial [C], mol/L Initial rate, mol/L.s 1 0.0500 0.0500 0.0100 6.25 x 10-3 2 0

icang [17]

Answer:

k[A][B][C]

Explanation:

Initial [A], mol/L Initial [B], mol/L Initial [C], mol/L Initial rate, mol/L.s

1 0.0500 0.0500 0.0100 6.25 x 10-3

2 0.100 0.0500 0.0100 1.25 x 10-2

3 0.100 0.100 0.0100 2.50 x 10-2

4 0.0500 0.0500 0.0200 1.25 x 10-2

Comparing equations 1 and 2, the reaction is first order with respect to A. This is because the concentration of A doubles, while the concentration of B and C remained constant leading to a double of the rate of reaction.

Comparing equations 2 and 3, the reaction is first order with respect to B. This is because the concentration of B doubles, while the concentration of A and C remained constant leading to a double of the rate of reaction.

Comparing equations 1 and 4, the reaction is first order with respect to C. This is because the concentration of C doubles, while the concentration of A and B remained constant leading to a double of the rate of reaction.

This means our rate law = k[A][B][C];

That is first order with respect to A, B and C

4 0

3 years ago