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
Alborosie
4 years ago
7

ASAP 40 POINTS PLUS BRAINLIEST PLZ IM ON TIMER

Chemistry
1 answer:
Drupady [299]4 years ago
7 0

Answer:

Answer is A

Areas at high elevations have cooler temperatures.

I presume you're doing earth science B?

You might be interested in
how many liters of O2 are needed to produce 5.62 g of SO2 in the following reaction? 4FeS2+11O2 ->2Fe2O3+8SO2
Liula [17]

8moles of SO_2 need 11mol O_2

  • 1mol need=11/8=1.4molO_2

Moles of sO_2

\\ \rm\hookrightarrow \dfrac{5.62}{64}=0.1

So

Moles of O_2

  • 1.4(0.1)=0.14mol

We know

  • 1mol at STP=22.4L
  • 1.4mol=0.14(22.4)=3.13L O_2
5 0
3 years ago
Suppose you have 50 grams of a radioactive isotope with a half-life of 2 years. How much of the isotope will you have after 4 ye
lys-0071 [83]
C would be the best answer
5 0
3 years ago
Read 2 more answers
for the following reaction: 1 CuO + 1 H2 --> 1 Cu +1H2O, what is the quantity of moles of H2O when there are 240 grams of CuO
Ber [7]

Considering the reaction stoichiometry, the quantity of moles of H₂O produced is 3.02 moles.

The balanced reaction is:

CuO + H₂ → Cu + H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:  

  • CuO= 1 mole
  • H₂= 1 mole
  • Cu= 1 mole
  • H₂O= 1 mole

The molar mass of the compounds present in the reaction is:

  • CuO= 79.55 g/mole
  • H₂= 2 g/mole
  • Cu= 63.55 g/mole
  • H₂O: 18 g/mole

Then, by reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of mass of each compound participate in the reaction:  

  • CuO= 1 mole× 79.55 g/mole= 79.55 grams
  • H₂= 1 mole× 2 g/mole= 2 grams
  • Cu= 1 mole× 63.55 g/mole= 63.55 grams
  • H₂O: 1 mole× 18 g/mole= 18 grams

Then, it is possible to determine the moles of H₂O necessary by the following rule of three:  If by reaction stoichiometry 79.55 grams of CuO produces 1 mole of H₂O, 240 grams of CuO produces how many moles of H₂O?

molesofH_{2} O=\frac{240 grams of CuOx 1 mole ofH_{2} O }{79.55 grams of CuO}

<u><em>moles of H₂O= 3.02 moles</em></u>

Finally, the quantity of moles of H₂O produced is 3.02 moles.

Learn more:

  • <u>brainly.com/question/11999193 </u>
  • <u>brainly.com/question/15111313?referrer=searchResults </u>
  • <u>brainly.com/question/9926203?referrer=searchResults </u>
  • <u>brainly.com/question/6061451?referrer=searchResults</u>
6 0
3 years ago
If you have a volume of 55 L and a density of 2 kg/L, what is the mass?
ASHA 777 [7]

Answer:

110kg

Explanation:

Density = mass / volume

Mass = density x volume

Given

Density = 2kg/l

Volume = 55l

Mass = 2kg/l x 55l

Mass = 110 kg

I hope this was helpful, Please mark as brainliest

3 0
4 years ago
Two water solutions that have a density of
Colt1911 [192]

<h2><em><u>Answer </u></em><em><u>:</u></em><em><u> </u></em><em><u>6</u></em><em><u>2</u></em><em><u>7</u></em><em><u> </u></em><em><u>J</u></em></h2><h2><em><u>Brainliest</u></em></h2>

5 0
3 years ago
Other questions:
  • An atom of element A has 108 protons. What would the elements atomic number be?
    11·1 answer
  • 100 K = _____ -173°C 0°C 100°C 373°C
    14·2 answers
  • Isostatic rebound: is caused by melting glaciers results in rising land can be observed in Finland and Sweden all of the above
    6·2 answers
  • 2. How many mi hr is 30km/s?​
    5·1 answer
  • What is the total number of electrons that can occupy the p sublevel?
    11·1 answer
  • What will happen to the volume of a gas if the Kelvin temperature of the gas is reduced to 1/4 of the original temperature and t
    9·1 answer
  • When a gene changes, it's said to be what?
    8·1 answer
  • a student needs to use 0.485 moles of sodium chloride in an experiment how many grams should he measure out in grams. (show work
    9·1 answer
  • En la practica de la papa,¿a que atribuyes el hecho de la rapidez de reacción?
    12·1 answer
  • How many valence electrons does each atom of arsenic have?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!