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3 years ago

Why did we change our understanding of where life comes from?

Chemistry

1 answer:

Andru [333]3 years ago

8 0

Answer:

whathappensinthisstory

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How many moles of gold atoms do 4.05×1024 gold atoms constitute?

VARVARA [1.3K]

Answer: There are 6.725 mols

Explanation:

Message me for extra information

parkguy786 snap

6 0

3 years ago

I neeeddddd heeeellllllppppp I'll give you brainliest

aev [14]

not double replacement

it will be synthesis

they are fusing the two elements

plz mark brainliest

3 0

3 years ago

Which has a greater volume, 10 grams of water or 10 grams of acetone?

WINSTONCH [101]

Density is defined as the ratio of mass to the volume.

Density = $\frac{Mass}{Volume}$ (1)

Mass of water = 10 grams

Mass of acetone = 10 grams

Density of water = 1 $\frac{g}{cm^{3}}$

Density of acetone = 0.7857 $\frac{g}{cm^{3}}$

Put the value of density of water and its mass in equation (1)

1 $\frac{g}{cm^{3}}$ = $\frac{10 g}{volume}$

Volume of water = 10 $cm^{3}$

Put the value of density of acetone and its mass in equation (1)

0.7857 $\frac{g}{cm^{3}}$ = $\frac{10 g}{volume}$

Volume of acetone = 12.72 $cm^{3}$

Thus, volume of acetone is more than volume of water because the density of acetone is lower.

6 0

3 years ago

What was Thomson's model of the atom called?

trasher [3.6K]

The answer is C: The plum-pudding model

3 0

3 years ago

Guys- my science teacher doesn't teach, he just says go on schoology

Free_Kalibri [48]

The relative mass of each element can be found from the periodic table (the larger number). For instance, P2O5, P = 31.0 O = 16.0, thus the formula mass (Mr) is 2(31) + 5(16) = 142 amu (atomic mass unit). I used a not really specific periodic table. Maybe your teacher is referring to open Schoology (a website where teacher can post files or announcements to students in his or her class). Sorry if i got something mistaken.

5 0

3 years ago