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3 years ago

15

Food undergoes both physical and chemical changes during digestion. Which parts of the digestive process listed below is a physi

cal change that takes place in the mouth?

1 answer:

sergeinik [125]3 years ago

3 0

Answer:

To answer your question use the code ICE on here to get your answer works every time for me hope this helps

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Which two solutions, when mixed together, will undergo a double replacement reaction and form a white, solid substance

Scrat [10]

Which two solutions, when mixed together, will undergo a double replacement reaction and form a white, solid substance?

1. NaCl(aq) and LiNO3(aq)

2. KCl(aq) and AgNO3(aq) answer

3. KCl(aq) and LiCL(aq)

4. NaNO3(aq) and AgNO3(aq)

2 is the answer because AgCl is formed and that is a white ppt.

5 0

3 years ago

Read 2 more answers

Ten pints of 15 % salt solution are mixed with 15 pints of 10 % salt solution. What is the

sergij07 [2.7K]

$Concentration\ rate=\frac{mass\ of\ product}{mass\ of\ substance}*100\%\\\\
15\%=\frac{m_1}{ms_1}*100\%\\ms_1=10pints\\
15\%=\frac{m_1}{10}*100\%\\
\frac{15}{100}=\frac{m_1}{10}\ \ |*10\\
m_1=\frac{150}{100}=1,5pints\\\\
10\%=\frac{m_2}{15}*100\%\\
0,1=\frac{m_2}{15}\ \ |*15\\
1,5=m_2\\
Resulting\ solution:\\
ms=ms_1+ms_2=15+10=25pints\\m=m_1+m_2=1,5+1,5=3pints
\\\frac{m}{ms}*100\%=\frac{3}{25}*100\%=12\%$

7 0

2 years ago

One of a frogs biggest defense is a. Eyesight b. Camoflauge c. Ability to swim

Serhud [2]

Answer:

Your answer has to be B. Camouflage

Explanation:

3 0

2 years ago

What is an example of inentsive property

sergejj [24]

Answer:

See explanation

Explanation:

I'm assuming you're asking about intensive properties. These properties only depend on the type of material, not the amount. Examples include color, temperature, boiling point, and hardness.

5 0

1 year ago

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What volume of 0.140 HCl is needed to neutralize 2.58 of Mg(OH)2<br> ? ...?

elena-s [515]

To make a first step you have to know the balanced form for neutralization formula: $Mg(OH)2(aq)+2HCl(aq)--\ \textgreater \ 2H2O+Mg(aq)+Cl(aq)
$
According to this, you can <span>calculate what you are being asked :</span> $0.0442molMg(OH)2(x)(2molHCl)/(1molMg(OH)2)=0.0885molHCl$
Then we have : $0.140MHCl=0.140(mol/L)HCl$
Hope everything is clear, here is the exact answer you need : $V=(0.0885molHCl)/(0.140(mol/L)HCl)=0.632LHCl
$

8 0

2 years ago