Which of the radioactive emissions has the highest energy

Answers

Answer 1

Answer: The correct answer is the gamma ray. It has the most penetration power and will pass through a number of things. Also, a gamma ray has shorter wavelength therefore higher energy from the equation, Energy = hc/wavelength.

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A bottle of rubbing alcohol contains both 2-propanol and water. These liquids can be separated by the process of distillation because the2-propanol and water(1) have combined chemically and retain their different boiling points(2) have combined chemically and have the same boiling point(3) have combined physically and retain their different boiling points(4) have combined physically and have the same boiling point
One way to remove nitrogen oxide from smokestack emissions is to react it with ammonia: 4 NH3 (g) + 6 NO (g) ----------> 5 N2 (g) + 6H2O (I)Fill in the blanks below:12.3 mol of NO reacts with ______ mol of ammonia5.87 mol of NO yields _______ mol nitrogen
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The melting points of canola oil, corn oil, sunflower oil, and peanut oil are 10°C, –11°C, –17°C, and –2°C. If you cool a mixture of these oils to 5°C, which one can you separate easily?

Answers

You can separate out the canola oil easily, because it has cooled down enough to turn back into a solid.

if you have 3.50 moles of hydrogen and 5.00moles of nitrogen to produce ammonia, witch element is the reactant in excess? 3H2+N2=2NH3

Answers

Given 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, nitrogen is the excess reactant.

What is the excess reactant?

The excess reactant is the reactant in a chemical reaction with a greater amount than necessary to react completely with the limiting reactant.

Step 1: Write the balanced equation.

3 H₂ + N₂ ⇒ 2 NH₃

Step 2: Establish the theoretical ratio.

The theoretical ratio (TR) of H₂ to N₂ is 3:1.

Step 3: Establish the experimental ratio.

The experimental ratio (ER) of H₂ to N₂ is 3.50:5.00 = 0.70:1.

Step 4: Determine the excess reactant.

Comparing TR and ER, we can realize that there is not enough hydrogen to react with the nitrogen. Thus, nitrogen is the excess reactant.

Given 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, nitrogen is the excess reactant.

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Answer : The $N_2$ element is the reactant in excess.

Solution : Given,

Moles of $N_2$ = 5 moles

Moles of $H_2$ = 3.50 moles

The balanced chemical reaction is,

$3H_2(g)+N_2(g)\rightarrow 2NH_3(g)$

From the balanced reaction we conclude that

As, 3 moles of $H_2$ react with 1 mole of $N_2$

So, 3.5 moles of $H_2$ react with $(3.5)/(3)=1.16$ moles of $N_2$

The excess of $N_2$ = 5 - 1.16 = 3.84 moles

That means in the given balanced reaction, $H_2$ is a limiting reagent because it limits the formation of products and $N_2$ is an excess reagent.

Hence, the $N_2$ element is the reactant in excess.

Electrons always fill orbitals in the same order. Each s orbital holds 2 electrons, each set of p orbitals holds 6 electrons, each set of d orbitals holds 10 electrons, and each set of f orbitals holds 14 electrons. The order in which orbitals are filled, from first to last, is: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p

To what element does the following electron configuration correspond?

1s22s22p4

A. aluminum: 13 electrons
B. oxygen: 8 electrons
C. boron: 5 electrons

Answers

oxygen is the answer :)

Answer is B. oxygen with 8 electrons

What volume of a 5.0% (v/v) Acetic Acid solution will contain 40.mL of Acetic Acid?

Answers

5.0% ( V/V) :

5.0 mL ------------- 100 mL ( solution )
40 mL --------------- ? ( solution )

V = 40 . 100 / 5.0

V = 4000 / 5.0

V = 800 mL

hope this helps!

Which of the following is the smallest volume? A. 2500 mL B. 250 cm3 C. 2.5 x 10-2 L D. 25 m3

Answers

The answer is c. 2.5*10-2 L. The unit cm3 is equal to mL. m3 is equal to 10^3 L. L is equal to 1000 mL. So after you change all the number to the same unit, you can get the result.

Final answer:

Among the given figures, 2.5 x 10-2 L (or 25 mL when converted to milliliters) is the smallest volume.

Explanation:

The student is asked to compare and determine the smallest volume between 2500 mL, 250 cm3, 2.5 x 10-2 L, and 25 m3. First, let's convert all volumes into a common unit, the milliliter (mL).

2500 mL = 2500 mL (already in mL),
250 cm3 = 250 mL (since 1 cm3 equals 1 mL),
2.5 x 10-2 L = 0.025 L = 25 mL (since 1 L equals 1000 mL),
25 m3 = 25 x 1,000,000 L = 25 x 1,000 x 1,000,000 mL = 25,000,000,000 mL.

From this comparison, we can see that 2.5 x 10-2 L or 25 mL is the smallest volume among the given figures.

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What is the mass percent of sodium in NaCl?

Answers

The mass percent of sodium in NaCl can be determined by dividing the mass of sodium by the total mass of the compound (NaCl), then multiplying the result by 100. So, 39.34% of the mass of sodium in NaCl is composed of sodium.

The molecular weight of chlorine (Cl) is 35.45 g/mol while that of sodium (Na) is 22.99 g/mol.

The molecular weight of NaCl is calculated as follows:

Na: 1 atom * 22.99 g/mol = 22.99 g/mol
Cl: 1 atom * 35.45 g/mol = 35.45 g/mol

Total molecular weight = 22.99 g/mol + 35.45 g/mol = 58.44 g/mol

To determine the sodium mass percent in NaCl:

(mass of sodium / total mass of NaCl) * 100 to get the mass percent of sodium.

(22.99 g/mol / 58.44 g/mol) x 100 = 39.34% sodium mass percent

As a result, 39.34% of the mass of sodium in NaCl is composed of sodium.

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mass percent of sodium is mass of sodium divided by total mass of NaCl then multiplied by 100%. That means that percent mass equals (23g/58.45g)×100% which equals 39.3%.
Therefore the percent mass of sodium in NaCl is 39.3%
I hope this helps. Let me know if anything is unclear.

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In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10.Complete the equation in your answer booklet for the equilibrium that exists in liquid water.

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A 10.00 g sample of a compound containing only carbon, hydrogen, and oxygen forms 23.98 g CO2 and 4.91 g H2O upon complete combustion. What is the empirical formula of the compound?