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KatRina [158]
3 years ago
6

Multiple Choice

Chemistry
2 answers:
Georgia [21]3 years ago
7 0

Answer:

A.- maintaining a positive attitude

Explanation:

The answer is very obvious you need to maintain a positive attitude while studying.

azamat3 years ago
3 0

Answer:

A: maintaining a positive attitude

Explanation:

I myself have personal experience with all of these, and B,C,D just don´t seem like reasonable answers. If you wait until the last minute to start an assignment, chances are you won´t get it done. Listening to the television while studing is a pretty bad idea because you might get distracted. Never study when tired because if you´re tired the information might not stick in your head. The only answer left is A.

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Sucrose is very soluble in water. At 25◦C,
omeli [17]

Answer:

<h2>number of moles of solute dissolved in one liter of solution. </h2>

1. 8.28

Explanation:

I'm not sure but I hope it's help

7 0
3 years ago
Which choice is an example of producer<br> A. Sun<br> B. Tree <br> C. Water<br> D. Bird
valina [46]
Sun. The sun is the producer because it is producing energy and sunlight for the organisms living on Earth
6 0
3 years ago
Read 2 more answers
Which two elements have the same ground-state electron configuration?
Neporo4naja [7]

Answer:

Cl (Chlorine) and Ar (Argon) have the same ground-state electron configuration.

Explanation:

Hope this helped

3 0
3 years ago
Determine the empirical formula for a compound that is 70.79% carbon, 8.91% hydrogen, 4.59% nitrogen, and 15.72% oxygen. determi
IceJOKER [234]
Hello!

We use the amount in grams (mass ratio) based on the composition of the elements, see: (in 100g solution)

C: 70.79% = 70,79 g 
H: 8.91% = 8.91 g
N: 4.59% = 4.59 g
O: 15.72% = 15.72 g

Let us use the above mentioned data (in g) and values will be ​​converted to amount of substance (number of moles) by dividing by molecular mass (g / mol) each of the values, lets see:

C: \dfrac{70.79\:\diagup\!\!\!\!\!g}{12\:\diagup\!\!\!\!\!g/mol} \approx 5.89\:mol

H: \dfrac{8.91\:\diagup\!\!\!\!\!g}{1\:\diagup\!\!\!\!\!g/mol} = 8.91\:mol

N: \dfrac{4.59\:\diagup\!\!\!\!\!g}{14\:\diagup\!\!\!\!\!g/mol} \approx 0.328\:mol

O: \dfrac{15.72\:\diagup\!\!\!\!\!g}{16\:\diagup\!\!\!\!\!g/mol} = 0.9825\:mol

We note that the values ​​found above are not integers, so let's divide these values ​​by the smallest of them, so that the proportion is not changed, let's see:

C: \dfrac{5.89}{0.328}\to\:\:\boxed{C\approx 18}

H: \dfrac{8.91}{0.328}\to\:\:\boxed{H\approx 27}

N: \dfrac{0.328}{0.328}\to\:\:\boxed{N\approx 1}

O: \dfrac{0.9825}{0.328}\to\:\:\boxed{O\approx 3}

T<span>hus, the minimum or empirical formula found for the compound will be:

</span>\boxed{\boxed{C_{18}H_{27}N_1O_3\:\:or\:\:C_{18}H_{27}NO_3}}\end{array}}\qquad\checkmark

I hope this helps. =)
5 0
3 years ago
9. Which of the following accurately describes the orbits of the planets in the solar system?
lana [24]

Answer:

the awnser is B

Explanation:

the awnser is B

7 0
3 years ago
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