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slavikrds [6]
3 years ago
9

Which of the following conclusions might a scientist make when fossils of two different species of very similar organisms are fo

und in different layers of rock?
Question 2 options:

A. Both organisms had similar behaviors.


B. One organism was prey for the other organism.


C. One organism was ancestor of the other organism.


D. Both organisms lived around the same time.
Chemistry
1 answer:
nata0808 [166]3 years ago
5 0

Answer:

if its multiple, C and D, if not, C

Explanation:

brainliesttt?

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cupoosta [38]

Answer:

have you interested sex then reply me I am from India

6 0
3 years ago
The general rule of thumb is that the (smaller or larger) a substance's atoms and the (stronger or weaker) the bonds, the harder
Ganezh [65]
Answer is: <span>The general rule of thumb is that the smaller a substance's atoms and the stronger the bonds, the harder the substance will be. 
If the distance between atoms is higher, lesser will be attraction between electrons and protons of atoms, smaller distance means stronger atoms attraction.

</span>
5 0
3 years ago
What is the mass in milligrams of 4.30 moles of sodium?use âeâ for âÃ10" and use significant figures?
Elis [28]

First, calculate the mass of sodium in g with the help of molar mass and number of moles.

Number of moles = \frac{given mass in g}{molar mass}   (1)

Molar mass of sodium =23 .0 g/mol

Substitute the given value of number of moles and molar mass of sodium in formula (1)

4.30 moles = \frac{given mass in g}{23.0 g/mol}   (1)

4.30 moles\times 23.0 g/mol = mass in g   (1)

mass of sodium in g = 98.9 g

Now, according to conversion factor, 1 g = 1000 mg

So, 98.9 g of sodium = 98.9 \times 1000  mg

= 98900 mg of sodium

Thus, mass of sodium in mg  =9.89 \times 10^{4} mg






8 0
3 years ago
Describe the motions of particles in the 3 common states of matter
kodGreya [7K]
3 Common States of Matter:

1. Solid - particles are motionless and stick together very closely.

2. Liquid - particles are moving slowly without pattern.

3. Gas - Particles are moving rapidly again without pattern.
3 0
3 years ago
Non examples of chemical formulas
Bezzdna [24]

Answer:

1+2 = 12

Explanation:

this is a math equation, not a chemical formula

6 0
3 years ago
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