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UNO [17]
4 years ago
12

How many significant digits are in 12,003,000 A) 8 B) 5 C) 6 D) 3

Chemistry
1 answer:
Ksju [112]4 years ago
5 0

Answer:5

Explann:

I've actually not learnt it but i can solve other questions under Maths

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Simora [160]

Answer:

ty :D

Explanation:

8 0
3 years ago
Please help fast<br>I WILL MARK YOU AS BRAINLIEST ​
Elan Coil [88]

Answer:

c

Explanation:

all the atoms must be balanced.

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3 years ago
Tap water is a mixture. TRUE or FALSE.
Temka [501]
True, H2O is a compound with 2 hydrogens and one oxygen
7 0
3 years ago
The radius of a krypton atom is 110pm and it's mass is 1.39x10 to -22 g.
Readme [11.4K]

Answer:

24.9~g/cm^3

Explanation:

Density is found dividing mass by volume. In this case, we treat krypton as a sphere having a volume of V = \dfrac{4}{3}\pi r^3. Given:

m = 1.39\cdot 10^{-22}~g

r = 110 pm = 1.10\cdot 10^{-8}~cm

We obtain density of:

d = \dfrac{m}{V} = \dfrac{m}{\dfrac{4}{3}\pi r^3} = \dfrac{3m}{4\pi r^3}

d = \dfrac{3\cdot 1.39\cdot 10^{-22}~g}{4\pi\cdot (1.10\cdot 10^{-8}~cm)^3} = 24.9~g/cm^3

This is not a feasible value for a gas like krypton, its radius is actually not 110 pm.

6 0
3 years ago
How is sublimation and deposition are alike
Y_Kistochka [10]
They both skip the liquid phase obviously xdxdxd
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