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Andreas93 [3]
3 years ago
14

Which state borders California now México nevada and Utah?

Chemistry
2 answers:
nikdorinn [45]3 years ago
4 0
Arizona
Why because borders touch california mexico nevada utah new mexico colarado
vladimir1956 [14]3 years ago
3 0
Arizona
It is surrounded by California, New Mexico, Nevada, Utah, and Mexico
You might be interested in
How many atom in protons
Alex Ar [27]

Answer:

Its atomic number is 14 and its atomic mass is 28. The most common isotope of uranium has 92 protons and 146 neutrons. Its atomic number is 92 and its atomic mass is 238 (92 + 146).

7 0
3 years ago
Determine the kinetic energy of a 150 kg roller coaster car that is moving with a speed of 15 m/s
morpeh [17]

Answer:

K.E = 19125 j

Explanation:

Given data:

Mass = 150 Kg

Speed of car = 15 m/s

K.E = ?

Solution:

Formula:

K.E = 1/2 (mv²)

K.E = Kinetic energy

m = given mass

V = speed

now we will put the values in formula.

K.E = 1/2 (mv²)

K.E = 1/2 (150 Kg) (15²)

K.E = 1/2 150 Kg × 225 m²/s²

K.E = 0.5 × 225 m²/s² ×150 Kg

K.E = 19125 j

8 0
3 years ago
7. How many liters of NH3, at STP, will react with 5.3 g 02 to form NO2 and water? (1 point)
motikmotik

Answer:

 2.12 L

Explanation:

Data Given:

Amount of O₂ = 5.3 g

Amount of NH₃ = ?

Given Reaction:

                    4NH₃ + 7O₂ ----------> 4NO₂ +6H₂O

Solution:

for details first we look into the reaction

                     4NH₃   +   7O₂ ----------> 4NO₂ + 6H₂O

                     4 mole      7 mol

from reaction we come to know that 4 mole of NH₃ react with 7 mole of O₂

Now we have to convert moles of NH₃ to Liter and mole of O₂ to grams

To convert moles of NH₃ to Liter formula will use

              Volume of NH₃ = no. of moles x molar volume at STP

molar volume at STP = 22.4 L/mol

put values in above equation

               Volume of NH₃ = 4 mol x 22.4 L/mol

               Volume of NH₃ = 89.6 L

Now,

To convert moles of O₂ to grams

            mass of O₂ = no. of moles x molar mass

molar mass of O₂ = 2(16) = 32 g/mol

Put values in above equation

              mass of O₂ = 7 moles x 32 g/mol

               mass of O₂ =  224 g

So,

We come to know that 89.6 L of NH₃ react with  224 g of O₂ to give NO₂ and water then how many liters of NH₃ will react with  5.3 g O₂

Now apply unity formula

                        89.6 L of NH₃ ≅ 224 g of O₂

                         X L of NH₃ ≅ 5.3 g of O₂

Do cross multiplication

                         Liter of NH₃ = 89.6 L  x 5.3g / 224 g

                         Liter of NH₃ = 2.12 L

So

option 2 is correct that is 2.12 Liter of NH₃ will react with 5.3 g O₂

8 0
4 years ago
what are two ways the study of fossils helps add to our understanding of the changes in Earth's environments?
dybincka [34]
They help us understand the concept of evolution and they help us understand what our earth was like before and after pangea or the great continental drift
5 0
4 years ago
How does the composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and o
IrinaK [193]
Chemical compounds have chemically bonded molecules so that they exhibit different properties (i.e. chemical) compared to the individual molecules comprising the compound. Mixtures are simply the combinations of different molecules and compounds that are not chemically bonded together, and can therefore be separated by physical means. Mixtures usually retain the properties of its components. 

The hydrogen and oxygen molecules in a mixture do not form strong bonds between each other. The molecules of both gases are only contained in the same space or volume and the individual molecules retain their chemical properties. 

A compound containing hydrogen and oxygen molecules exhibit different chemical (and even physical) properties compared to the individual molecules themselves.

Water for example, is a compound with 2 hydrogen atoms and 1 oxygen atom, chemically-bonded together. Hydrogen gas is highly flammable, water is not. Oxygen gas is an essential reagent for combustion (or burning) reactions, water is not. 
 
Thus, throwing a lighted match to a gaseous mixture of hydrogen (H_{2}) and oxygen (O_{2}) would create fire, or even an explosion (since hydrogen is flammable and oxygen feeds the reaction). Throwing a match to water vapor (H_{2}O) would not create fire. 
5 0
4 years ago
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