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Bas_tet [7]
3 years ago
13

name two diffirent kinds of animals and identify at least one characteristic that makes them diffirent from each other

Chemistry
1 answer:
ValentinkaMS [17]3 years ago
6 0

Answer:

Bears and Whales

Explanation:

Bears keep themselves warm via a thick fur coat

Whales keep themselves warm with a thick layer of blubber

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A flame is the result of a chemical reaction that releases energy. Do you think a similar kind of chemical reaction is happening
almond37 [142]

Answer:

Chemical reactions that take place inside living things are called biochemical reactions. Explanation:The sum of all the biochemical reactions in an organism is referred to as metabolism. Metabolism includes both exothermic (heat-releasing) chemical reactions and endothermic (heat-absorbing) chemical reactions.

4 0
2 years ago
Draw the Lewis structure for the polyatomic formate anion. Be sure to include all resonance structures that satisfy the octet ru
givi [52]

Answer:

Lewis structure of polyatomic formate anion.

Explanation:

To draw Lewis structure for any chemical species,

1)Count the total number of valence electrons present in it.

This can be obtained by adding valence electrons of each constituent atom.

2)Arrange those valence electrons in such a way that each atom should attain eight electrons around it to satisfy octet theory.

The structure of formate ion and its Lewis structure are shown below:

HCOO- is the formate ion.

It has total:

1+4+6+6+1 = 18 valence electrons.

Since, hydrogen has one, carbon has four and oxygen has six valence electrons and the charge of the anion is one.

Arrange this 18 electrons in such a way that each atom should get 8 electrons around it.

Resonance structures of formate ion:

8 0
2 years ago
How many moles are contained in a 4.67-l sample of gas at 30°c and 199 kpa?
ohaa [14]
Pv=nRT
where,p=199, R(constant)=8.314, V=4.67 T=30C=293K
n=pv/RT=0.38 moles
4 0
3 years ago
Read 2 more answers
The space race was between
Leviafan [203]

Answer:

the United States and the Soviet Union.

Explanation:

Basically we were in toe to toe with the russians for space explorations like who's gonna get to space first or moon or do such explorations

4 0
2 years ago
A sample of ammonia gas, NH3, has a volume of 285.0 mL at a pressure of 98.50 kPa. What will the volume of the ammonia be at a p
enyata [817]
<span>We know that an ideal gas keeps the relation between pressure, volume and temperature constant.
    P * V / T = constant
   Then if we have the gas in two diferente state:
   P1*V1/T1 = P2*V2/T2
    Temperature remain constant so then:
   P1*V1 = P2*V2
  98.5*285 = 94.2*V2
  V2 = 98.5*285/94.2 = 298 ml
   So the volume of the ammonia will be 298 ml</span>
6 0
3 years ago
Read 2 more answers
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