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marusya05 [52]
2 years ago
7

Help asap! if u answer correct Ill give brainliest!!

Chemistry
2 answers:
SpyIntel [72]2 years ago
7 0

Answer:

I believe it means The universe will exploder or The universe is expanding

Explanation:

Marina86 [1]2 years ago
5 0

Answer:

D. The universe will explode

Explanation:

Sorry if im wrong! Have a great day/night/ afternoon!!

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A stream leaving a mountain range deposits a large part of its load in a(n): alluvial fan sandbar meander sand dune
pshichka [43]

the answer to you question is alluvial fan

3 0
3 years ago
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A lead–tin alloy of composition 30 wt% Sn–70 wt% Pb is slowly heated from a temperature of 150°C (300°F).(a) At what temperature
Novay_Z [31]

Answer:

a) 231.9 °C

b) 100% Sn

c) 327.5 °C

d) 100% Pb

Explanation:

This is a mixture of two solids with different fusion point:

Tf_{Pb}=327.5 C

Tf_{Sn}=231.9 C

<u>Given that Sn has a lower fusion temperature it will start to melt first at that temperature. </u>

So the first liquid phase forms at 231.9 °C and because Pb starts melting at a higher temperature, that phase's composition will be 100% Sn.

The mixture will be completely melted when you are a the higher melting temperature of all components (in this case Pb), so it will all in liquid phase at 327.5 °C.

At that temperature all Sn was already in liquid state and, therefore, the last solid's composition will be 100% Pb.

3 0
3 years ago
The backbone in a nucleic acids strand is called:
Nina [5.8K]

Answer: Option (c) is the correct answer.

Explanation:

Backbone in a nucleic acids strand is made up of sugar molecules attached with phosphodiester bond.

This sugar-phosphate linkage helps in joining of nucleotides in a DNA sequence. Due to this backbone structural framework of nucleotides is formed. In DNA, the sugar is deoxyribose.  

Thus, we can conclude that the backbone in a nucleic acids strand is called sugar backbone.

4 0
3 years ago
What is the limiting reactant if 4.0 g of Nh3 react with 8.0 g of oxygen?
Mazyrski [523]
NH3-The limiting reactant is the reactant that get completely used up in a reaction
8 0
3 years ago
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How many different d orbits are within the 3d sublevel
ohaa [14]

Answer:

Its 5

Explanation:

6 0
3 years ago
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