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stiks02 [169]
3 years ago
7

The modern synthesis combined the concepts of _______ and evolution.

Chemistry
1 answer:
aalyn [17]3 years ago
4 0
Answer:

Molecular Evidence.
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2N2 + 3H2 → 2NH3
andrew-mc [135]

Answer:D

Explanation:

3 0
2 years ago
An atom has 18 neutrons and 17 proton. a) How many electrons are in this atom ​
Paul [167]

Answer:

17 electron

Explanation:

because the number of the proton and number of electron is equal if ther is no charge

7 0
2 years ago
The combined gas law states that
seropon [69]

Answer:

Option B. PV = nRT.

Explanation:

From the above,

C = PV / T. (1)

But, C is directly proportional to n, where R is the gas constant i.e

C & n

C = nR

Substituting the value of C into equation (1), we have:

C = PV / T

nR = PV / T

Cross multiply to express in linear form

nRT = PV

Therefore,

PV = nRT

8 0
2 years ago
A student sets up the following equation to convert a measurement. (The stands for a number the student is going to calculate.)
Crank

Answer:

0.090 J/(mmol·°C) × (1000 mmol/mole × 1 kJ/(1000 J)) = 0.090 kJ/mole

Explanation:

The unit of conversion from kilo-Joules to Joules is given as follows;

1000 Joules = 1 kilo-Joule

The unit of conversion from milimoles to moles is given as follows;

1000 milimoles = 1 Mole

Therefore, we have

The value of the given expression is 0.090 J/(mmol·°C) × 1000 mmol/mole × 1 kJ/(1000 J) = 0.090 kJ/mole

0.090 J/milimole = 0.09 kJ/mole.

3 0
2 years ago
Please look at photo provided and help answer. Due soon please help!!!
saul85 [17]

Answer:

a. 6 mol of oxygen

b. 10 mol of iron(III)oxide

Explanation:

Use mole concept.

3 0
2 years ago
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