Which of the following is true in regard to ions?A. Ions can only carry positive charges.
B. An ionized atom has a number of protons that is unequal to the number of electrons.
C. A cation will hold a positive charge if it gains one or more electrons.
D. Losing one or more electrons will turn an atom into an anion.

Answers

Answer 1

Answer: I think the best answer for this question is B. An ionized atom has a number of protons that is unequal to the number of electrons. Atoms have a neutral charge since the number of the positively charge particles and the negatively charged particles are equal. However, when these particles are unequal a charged atom will be the result.

Answer 2

Answer:

Answer:

B. An ionized atom has a number of protons that is unequal to the number of electrons.

Explanation:

Bc its is got 100% on pf

Related Questions

Which statement regarding significant figures is false? a. Zeros can be significant b. When multiplying, the answer is determined by the number of significant figures c. When adding, the answer is determined by the number of decimal places d. When dividing, the answer is determined by the number of decimal places e. The number 50,004 has five significant figures
In performing chest compressions on a child, the breastbone is compressed to the depth of how many inches? a) 1/2 b) 1 1/2 c) 2. d) 2½
A sample of nitrogen occupies 10.0 liters at 25°C and 98.7 kPa. What would be the volume at 20°C and 102.7 kPa?
Which type of bond is most likely to occur in the compound mgcl2?
Which process results in the release of energy stored in the products of photosynthesis?A. polymer synthesisB. depolymerizationC. digestionD. cellular respiration

How many millimeters are in 0.30 meters?

Answers

Answer:

300

Explanation:

Multiply Length by value of 1000

There should be 300 millimeters in .30 meters

Why is gas production not recognized as nitrate reduction?

Answers

The gas production not recognized as nitrate reduction is because organisms that can ferment also produce gas. Therefore even if gas is produced on the tube, you can't tell if it's by fermentation or by nitrate reduction. I hope the answer helps.

A sealed container has 1 mole of helium and 2 moles of nitrogen at 30DC when the total pressure of mixture is 0.60 atm what is the partial pressure of the nitrogen?

Answers

Answer:

The partial pressure of nitrogen is 0.402 atm.

Explanation:

Given data:

Number of moles of helium = 1 mol

Number of moles of nitrogen = 2 mol

Total pressure of mixture = 0.60 atm

Partial pressure of nitrogen = ?

Solution:

First of all we will calculate the mole fraction of nitrogen.

mole fraction of nitrogen = moles of nitrogen / total number of moles

mole fraction of nitrogen = 2 mol / 3 mol = 0.67

Partial pressure of nitrogen:

P₁ = [ n₁ /n(t)] × Pt

P₁ = 0.67 × 0.60 atm

P₁ = 0.402 atm

Final answer:

To find the partial pressure of nitrogen in a mixture, calculate the mole fraction of nitrogen and multiply it by the total pressure of the mixture. In this case, the partial pressure of nitrogen is 0.40 atm.

Explanation:

The question is about determining the partial pressure of nitrogen in a mixture of helium and nitrogen based on Dalton's Law of Partial Pressures. First, we find the mole fraction of nitrogen, which is the ratio of moles of nitrogen to the total moles in the mixture. In this scenario, the mole fraction (XN2) is 2 moles of nitrogen divided by the total moles (1 mole of helium + 2 moles of nitrogen), which equals 2/3.

Then we use Dalton's Law, which states that the partial pressure of nitrogen (PN2) can be found by multiplying the mole fraction by the total pressure of the mixture. Therefore, the partial pressure of nitrogen is 0.60 atm (total pressure) multiplied by 2/3 (mole fraction of nitrogen), yielding a partial pressure for nitrogen of 0.40 atm.

Learn more about partial pressure here:

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Fe2O3 + H2 --> Fe + H2OA) what mass of hydrogen gas must be consumed to produe 10.0 g of iron metal?

B) what mass of iron(lll) oxide, Fe2O3, must be consumed to prepare 2.50g of iron metal

Answers

A) 10.0g of Iron is $(10.0)/(55.8)=179mmol$ of Iron.

One mole of dihydrogen is required to form one mole of iron, hence you'll need $0.179*1.00=0.179g$ of dihydrogen.

B) Likewise : 2.50g of Iron is $(2.50)/(55.8)=44.8mmol$ of Iron, hence we'll need $44.8*(3*16+2*55.8)=7.15g$ of Fe2O3.

Give the number of valence electrons for each of the following: Ba, Al, P, Se, Br, K

Answers

Ba: 2
Al: 3
P: 5
Se: 6
Br: 7
K: 1

Hope this helps!

The compounds KNO3 and NaNO3 are soluble in water.55 Compare the entropy of 30. grams of solid KNO3 at 20.°C with the entropy of 30. grams of KNO3 dissolved in 100. grams of water at 20.°C. [1]

56 Explain why the total thermal energy of a sample containing 22.2 grams of NaNO3 dissolved in 200. grams of water at 20.°C is greater than the total thermal energy of a sample containing 11.1 grams of NaNO3 dissolved in 100. grams of water at 20.°C. [1]

57 Compare the boiling point of a NaNO3 solution at standard pressure to the boiling point of water at standard pressure. [1]

Answers

55) Answer==> the solid has less entropy
56) Answer==> 22.2g produces more heat than 11.1g when dissolved
57) Answer==> the solution has a higher boiling point

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