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
babunello [35]
3 years ago
10

Why are cars manufactures exploring hydrogen fuel cell technology as a possiable replacement for gasoline burning engines

Chemistry
1 answer:
horsena [70]3 years ago
4 0
To possibly take down on the pollution we produce in the world
You might be interested in
Models have been created that predict world sea levels will rise if the current global temperature increases continue. If these
lesya [120]
To solve this question, think about which one of these options is a DIRECT effect of sea levels rising.

Choice A: If sea levels rise, they would start to cover up land that's at sea level, areas like beaches or coastal cities for example.

Choice B: Fossil fuels cause global warming. This is about the effects of global warming, not the causes. 

Choice C: Not relevant. It doesn't mention alternative energy at all in this.

Choice D: Again, effects, not causes (see Choice B explanation).

The correct answer is... CHOICE A
5 0
3 years ago
How many significant figures does 546.000 have
choli [55]
This has only only three sig figs because it is 546.000 the zeros are just place holders so thus meaning they are not significant. It is just another way to write 546 because in that number there is also 3 sig figs. They are just trying to throw you off. Just watch out because if the example is 540 then it is just two significant digits, and it were to be 540. then it be three cause that "." makes the zero significant.  <span />
7 0
3 years ago
25 g of a compound is added to 500 mL of water if the freezing point of the resulting solution is
vlabodo [156]

Answer:

a)   119 g/mol

Explanation:

-We apply the formula for freezing point depression to obtain the molality of the solution:

\bigtriangleup T_f=K_fm, \  \ K_f=1.36\textdegree C/m\\\\\therefore m=\frac{\bigtriangleup T_f}{K_f}\\\\=\frac{0.57\textdegree C}{1.36\textdegree C}\\\\=0.4191\ mol/Kg\\\\

#We use the molality above to calculate the molar mass:

m=\frac{0.4191\ mol}{1\ Kg}=\frac{25\ g}{0.5\ Kg}\\\\\therefore 1 \ mol=\frac{25\ g}{0.5\ Kg}\times\frac{1\ Kg}{ 0.4191}\\\\=119.3033\approx 119\ g/mol

Hence, the molar mass of the compound is 119 g/mol

5 0
3 years ago
Which of these might affect whether or not a particular chemical reaction occurs?
Vinvika [58]

Your answer would be D.

8 0
3 years ago
URGENTTTTT What is the correct formula when Al+3 combines with CrO4-2
PIT_PIT [208]
A and C are incorrect because they are not complete transfer of valence electrons. Ionic bonds best to form a neutral molecule
8 0
3 years ago
Other questions:
  • Does the structure below exhibit geometric isomerism? ch3 tally1 ch3― c ―ch═ch―ch3 tally1 ch3
    5·1 answer
  • What volume of hydrogen iodide is produced when 118 liters of hydrogen gas react according to the following reaction? (All gases
    8·1 answer
  • Reptiles, amphibians, and fish are all cold-
    5·2 answers
  • In what other planets did differentiation occur?
    10·1 answer
  • A container of oxygen has a volume of 30.0 mL and a pressure of 72.5 psi. If the pressure of the oxygen gas is reduced to 28 psi
    11·1 answer
  • What volume of silver metal will weigh exactly 2500g. The density of silver is 10,5 g/cubic centimeters.
    13·1 answer
  • Why do convection currents occur?
    6·1 answer
  • Help please thank you!!
    6·1 answer
  • Help 6th grade science i will give brainliest FOOLISH ANSWERS WILL BE REPORTED
    13·1 answer
  • The undersea mountain chain where magma rises from and where new ocean floor is produced is called?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!