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Alchen [17]
4 years ago
12

If 35 mL of 0.10 Macid solution is neutralized by 21.8 mL of a basic solution, what is the molarity

Chemistry
1 answer:
expeople1 [14]4 years ago
5 0
I don’t understand this one sorry
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When a food label reads low-calorie, the product contains _______ calories or less per serving.
dusya [7]

When a food label reads low-calorie, the product contains  40 calories or less per serving.

A calorie is a unit of energy. For historical reasons, two main definitions of "calorie" are widely used. A staple calorie, food calorie, or kilogram calorie was originally defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. Wikipedia

The amount of energy in food and drink is expressed in calories. When we eat or drink more calories than we consume, our bodies store the excess as body fat. If this continues, it can lead to weight gain over time.

Learn more about calories here

brainly.com/question/1178789

#SPJ4

4 0
2 years ago
Which animals use the specialized roles of diver and barrier while participating in cooperative hunting?
amm1812
I believe the answer is The Dolphins.
In their Cooperative hunting, The dolphins requires five of its members to form of barrier while one or two of them are herding (Driving) their preys toward the barriers. And each dolphins will always play the same role in their group just like what we see in a football team.
3 0
3 years ago
Read 2 more answers
Which statement describes an arrhenius acid?
enot [183]
The statement that would beat describe an Arrhenius acid would be the second Option. It produces H+ ions in solution. The other definitions would be suitable for Arrhenius base, Bronsted Lowry Acid/Base, and Lewis Base.
7 0
3 years ago
Read 2 more answers
Copper has two naturally occurring isotopes, 63Cu (isotopic mass 62.9296 amu) and 65Cu (isotopic mass 64.9278 amu). If copper ha
Semenov [28]

Answer:

Percentage of first isotope = 69.152 %

Percentage of second isotope =  30.848 %

Explanation:

The formula for the calculation of the average atomic mass is:

Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})

Given that:

For first isotope:

Let % = x %

Mass = 62.9296 amu

For second isotope:

% = 100 - x  %  (Since, there are only two isotopes)

Mass = 64.9278 amu

Average mass = 63.546 amu

Thus,  

63.546=\frac {x}{100}\times {62.9296}+\frac {(100-x)}{100}\times {64.9278}

Solving,

1.9982 x = 138.18

Thus,

<u>Percentage of first isotope = x = 69.152 %</u>

<u>Percentage of second isotope = 100 - x % = 30.848 %</u>

5 0
4 years ago
Help school so annoying
hichkok12 [17]

Answer:

I think its scenario 2 Guitar strings

Explanation:

"You move your fingers and arm to play the guitar! This energy was stored in the molecules inside your muscles and now is being used to move your fingers which, in turn, transfers energy to the strings of the guitar. Now the strings are vibrating, having kinetic energy,"

I searched this up, if you answer requires an explanation put this in your own words.

3 0
3 years ago
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