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nata0808 [166]
3 years ago
6

What is 125000 in scientific notation?

Chemistry
1 answer:
Usimov [2.4K]3 years ago
7 0

Answer:

1.25 x 10^5

Explanation:

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What is one disadvantage of a unicellular organisms?
prisoha [69]

Answer:

Unicellular organisms don't live as long and multicellular organisms. ... Disadvantages- Unicellular organisms only have one cell that is used to function their entire being. Short life span, can't grow lager then multicellular organisms.

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3 0
3 years ago
How is the formation of covalent bonds similar to kids sharing markers? how is it different? if possible, discuss your answer wi
vagabundo [1.1K]
A covalent bond means shared electrons between atoms. This is similar to kids sharing markers because the markers (electrons) are being shared between the kids (atoms). Covalent bonds are different than this metaphor because 1) the electrons are constantly moving about while the kids can steal and keep the markers and 2) the electrons and atoms are physically smaller
5 0
3 years ago
Read 2 more answers
A gas is collected at 25.0 °C and 755.0 mm Hg. When the temperature is
Mashcka [7]

Answer:

691.7 mmHg is the resulting pressure

Explanation:

Tha Gay-Lussac's law states that the pressure of a gas is directly proportional to its absolute temperature under constant volume. The equation is:

P1T2 = P2T1

<em>Where P is pressure and T asbolute temperature of 1, initial state and 2, final state of the gas.</em>

<em />

Computing the values of the problem:

T1 = 273 + 25 = 298K

P1 = 755.0mmHg

T2 = 273 + 0 = 273K

P2 = ?

755.0mmHg*273K = P2*298K

<h3>691.7 mmHg is the resulting pressure</h3>
7 0
2 years ago
What type of reaction produces a precipitate?
Pavlova-9 [17]
The correct answer is C.

Most of the time, double replacements produce one product that is soluble and one that is insoluble

This results in a precipitate within a liquid or aqueous solution

Hope this helps

7 0
3 years ago
Nitric acid is a key industrial chemical, largely used to make fertilizers and explosives. The first step in its synthesis is th
Hunter-Best [27]

Answer:

The answer is 0.36 kg/s NO

Explanation:

the chemical reaction of NH3 to NO is as follows:

4NH3(g) + 5O2(g) ⟶4 NO(g) +6 H2O(l)

We have the following data:

O2 Volume rate = 645 L/s

P = 0.88 atm

T = 195°C + 273 = 468 K

NO molecular weight = 30.01 g/mol  

we calculate the moles found in 645 L of O2:

P*V = n*R*T

n = P*V/R*T

n= (0.88 atm * 645L/s)/((0.08205 L*atm/K*mol) * 468 K) = 14.78 moles of O2

With the reaction we can calculate the number of moles of NO and with its molecular weight we will have the rate of NO:

14.78 moles/s O2 * 4 molesNO/5 molesO2 * 30.01 g NO/1 molNO x 1 kgNO/1000 gNO = 0.36 kg/s NO

8 0
3 years ago
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