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Pie
2 years ago
5

According to the laws of physics as scientist presently understand then when every _____ is extinguished , all live in the uni

verse will end.
Chemistry
1 answer:
kkurt [141]2 years ago
5 0

Answer:

hey listen I'll hate to take the pts and go but I have to do what a man have to do

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What are the two main types of luster?
sweet [91]
Metallic and nonmetallic
4 0
2 years ago
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suppose the mass spectrum of a hypothetical monatomic element X contains a signal at mass number 13 and another of identical hei
Illusion [34]
Average the numbers 13 and 15 to get 14amu.
6 0
3 years ago
What other elements does iron commonly bonds with.
Neko [114]

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

it can bond with oxygen to form rust or iron oxide. and it can bond with carbon to form steel.

Here's another one: Iron bonds with lots of things: Oxygen (Ferric Oxide = rust),Chlorine (Ferric Chloride]), Fluorine, ... , even other Iron (in aMetallic Bond or crystal).

Hope it helps.

Have a nice day hyung/noona!~  ̄▽ ̄❤️

5 0
2 years ago
Pls help asap pls !!
klio [65]

Answer:

basic solution.

Explanation:

has a pH of 12.

it turns clear indicator pink.

it contains hydroxide ions which conduct electricity

3 0
3 years ago
An element crystallizes in a face-centered cubic lattice. If the length of an edge of the unit cell is 0.408 nm, and the density
V125BC [204]

Answer:

Au

Explanation:

For the density of a face-centered cubic:

Density = \dfrac{4 \times M_w}{N_A \times a^3}

where

M_w = molar mass of the compound

N_A= avogadro's constant

a^3 = the volume of a unit cell

Given that:

Density (\rho) = 19.30 g/cm³

a = 0.408 nm

a = 0.408 \times 10^{-9} \times 10^{2} \ cm

a = 4.08 \times 10^ {-8} \ cm

∴

19.3 = \dfrac{4 \times M_w}{(6.023 \tmes 10^{23})\times (4.08 \times 10^{-8})^3}

M_w= \dfrac{19.3\times (6.023 \times 10^{23})\times (4.08 \times 10^{-8})^3}{4}

M_w=197.37 \ g/mol

Thus, the molar mass of 197.37 g/mol element is Gold (Au).

4 0
3 years ago
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