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alexgriva [62]
3 years ago
5

What has the study or fossils allowed scientists to do ?

Chemistry
2 answers:
olga_2 [115]3 years ago
5 0
Know things from the past like dinosaurs 
Lera25 [3.4K]3 years ago
4 0
It helped them learn about the earths past 
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What is a mitochondrion
Dima020 [189]

Explanation:

Mitochondria (sing. mitochondria) are organelles, or parts of the eukaryote cell. They are in the cytoplasm, not the nucleus. They make the most cell supply of adenosine triphosphate (ATP), a molecule that cells use as an energy source. ... This means that mitochondria are known as '' the powerhouse of the cell'' or ''cell strength".

Good Luck, and have a great day..

4 0
4 years ago
Read 2 more answers
The pOH of a solution is 9.70. what is the H+ concentration in the solution ?
Scrat [10]

Answer:

The H+ concentration is 10^{-4.3} M

Explanation:

We know that for any solution,

pOH + pH = 14

Given,

pOH = 9.70,

Therefore using formula,we get,

pH = 14 - pOH,

pH = 14 - 9.70;

pH = 4.30

We also know,

If Concentration of H+ in a solution in C,

Then,

pH = -log(C) ------(Formula 1) and  C = 10^{-pH}  ----(Formula 2)

Therefore,

using formula 2, we get,

C = 10^{-pH}  

C = 10^{-4.30}M.

Therefore concentration of H+ in the given solution is 10^{-4.3} M

6 0
3 years ago
What is the expected freezing point of a 0.50 m solution of na2so4 in water kf for water is 1.86°c/m?
Anna007 [38]

Colligative properties calculations are used for this type of problem. Calculations are as follows:<span>


ΔT(freezing point)  = (Kf)m
ΔT(freezing point)  = 1.86 °C kg / mol (0.50 mol/kg)
ΔT(freezing point)  = 0.93 °C
Tf - T = 0.93 °C
<span>T = -0.93 °C</span></span>

4 0
3 years ago
Read 2 more answers
I’ll mark you brainley if you help me figure out which answer it is!!!
Stolb23 [73]

Answer:

A

Explanation:

A chemical change happens when one chemical substance is transformed into one or more different things , such as when iron becomes rust so

B: Acids turn the indicator red, pink, orange, and yellow, while bases turn it green based on what it reactions with or comes in contact with  so b is maybe

c is wrong

and d a physical change, will technically yes and no there should have not been a smell afterwards so the only really choose that makes sense here is A  

5 0
3 years ago
Find the equation of the line passing through the points (2, 1) and (5, 10).​
Vedmedyk [2.9K]

The equation : y=3x-5

<h3>Further explanation </h3>

Straight-line equations are mathematical equations that are described in the plane of cartesian coordinates

General formula

y-y1 = m(x-x1)

or

y = mx + c

Where

m = straight-line gradient which is the slope of the line

x1, y1 = the Cartesian coordinate that is crossed by the line

c = constant

The formula for a gradient (m) between 2 points in a line

m = Δy / Δx

  • Gradient

\tt \dfrac{10-1}{5-2}=3

  • Equation

\tt y-1=3(x-2)\\\\y-1=3x-6\\\\y=3x-5

3 0
3 years ago
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