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2 years ago

Quest

Chemistry

2 answers:

Sever21 [200]2 years ago

8 0

Answer:

D. An acid accepts an electron pair from a base.

Explanation:

acorroding to lewis

an acid is a compound which accepts a pair of electrons from base .

a base is a compound which donates a pair of electron to acid .

stepladder [879]2 years ago

3 0

I think the answer is D !!!!!!!!

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Which image is cohesion stronger than adhesion and which image is adhesion stronger than cohesion

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Image C is adhesion stronger and Image D is cohesion stronger

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3 years ago

Liquid waste that exits the body is _____________ and solid waste is ___________.

nignag [31]

Answer:

The answer is B. Urine, Feces

Explanation:

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2 years ago

Read 2 more answers

Instruction

MrRa [10]

Answer:

An object at position A. has all potential energy

An object at position B. has about half potential and half kinetic energy

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Explanation:

I already did it and got all of them correct. I hope this helped!! :)

5 0

3 years ago

Need help ASAP please!

bearhunter [10]

Answer:

13 mol NO

Explanation:

Step 1: Write the balanced equation

4 NH₃(g) + 5 O₂(g) ⇒ 4 NO(g) + 6 H₂O(g)

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of O₂ to NO is 5:4.

Step 3: Calculate the number of moles of O₂ needed to produce 16 moles of NO

We will use the previously established molar ratio.

16 mol O₂ × 4 mol NO/5 mol O₂ = 13 mol NO

3 0

3 years ago

A student wants to make a 0.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle containing 12.00 g of barium sulfa

love history [14]

<u>Answer: </u>The volume of the solution is 85.7 mL

<u>Explanation:</u>

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

$\text{Molarity of solution}=\frac{\text{Given mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (mL)}}$ .....(1)

We are given:

Molarity of solution = 0.600 M

Given mass of $BaSO_4$ = 12.00 g

We know, molar mass of $BaSO_4=[(1\times 137.33)+(1\times 32.07)+(4\times 16)]=233.4g/mol$

Putting values in equation 1, we get:

$0.600=\frac{12.00\times 1000}{233.4\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{12.00\times 1000}{233.4\times 0.600}=85.68mL=85.7mL$

The rule of significant number that is applied for the problems having multiplication and division:

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

Here, the least number of significant figures is 3 that is determined by the number, 0.600. Thus, the answer must have these many significant figures only.

Hence, the volume of the solution is 85.7 mL

5 0

2 years ago