1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Inessa05 [86]
3 years ago
15

Why are polar bears listed as a threatened species?

Chemistry
2 answers:
Jlenok [28]3 years ago
8 0
Because of global warming, as our ozone layer gets disrupted the ice caps are melting and the polar bear have no where to go
IceJOKER [234]3 years ago
5 0
Because their species is in danger of going extinct<span />
You might be interested in
Count the total number of atoms in sio2:
grigory [225]
Atoms are the basic units of matter and the defining structure of elements. We count the number of atoms by the total number of elements present in the compound. In this case, we have 1 atom of Si and 2 atoms of oxygen which would have 3 total number of atoms.
8 0
3 years ago
Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas? a. Mg b. Li c. Al d. Pb
Stells [14]

I believe the answer is A) Mg.

5 0
3 years ago
Read 2 more answers
Which element has a gas notation of [Kr]5s2 4d7
Olenka [21]
I think it would be Kriptonite
7 0
3 years ago
. In which reaction is nitric acid acting as an oxidising agent?
Talja [164]

Answer:

B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2

Explanation:

Hello,

In this case, we should understand oxidizing agents as those substances able to increase the oxidation state of another substance, therefore, in B. reaction we notice that copper oxidation state at the beginning is zero (no bonds are formed) and once it reacts with nitric acid, its oxidation states raises to +2 in copper (II) nitrate, thus, in B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2 nitritc acid is acting as the oxidizing agent.

Moreover, in the other reactions, copper (A.), sodium (C. and D.) remain with the same initial oxidation state, +2 and +1 respectively.

Regards.

8 0
2 years ago
Read 2 more answers
Gasoline has a density of 0.65 g/ml. what is the mass in kilograms if the volume is 34 l
djverab [1.8K]
Does mass<span> alone provide no information about the amount or size of a measured quantity? No, we need combine </span>mass<span> and </span>volume<span> into "one equation" to </span>determine<span> "</span>density<span>" provides more ... </span>g/mL<span>. An </span>object has<span> a mass of </span>75 grams<span> and a volume of </span>25 cc<span>. ... A </span>certain object weighs 1.25 kg<span> and </span>has<span> a </span>density of<span> </span>5.00 g/<span>mL</span>
7 0
3 years ago
Other questions:
  • Why do group 7 elements have higher melting and boiling points going down?
    10·1 answer
  • Adding copper or magnesium to aluminum creates an alloy that is _____.
    10·1 answer
  • Consider these atoms. which atom (ba or i) would accept electrons from the other atom to satisfy the octet rule?
    7·2 answers
  • __________ refers to the total energy of a system.
    12·2 answers
  • Karen has a mass of 53 kg as she rides the up escalator at woodley park station of the washington
    7·1 answer
  • how many grams of water can be produced when 65.5 grams of sodium hydroxide react with excess sulfuric acid.
    15·1 answer
  • The following table lists molecular weight data for a polypropylene material. Molecular Weight Range (g/mol) xi wi
    6·1 answer
  • What is advantage of using single fixed pulley although it doesnot multiply force?​
    11·2 answers
  • 2 C4H10+13 O2 = 8 CO2+10 H2O
    13·1 answer
  • What percentage of incoming college students did not consume any alcohol?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!