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katen-ka-za [31]
2 years ago
12

What is the percent by mass of Ca in calcium chloride, CaCI2 (show your work)

Chemistry
1 answer:
adoni [48]2 years ago
5 0

Answer:

\boxed{ \tt{ \frac{Ca}{CaCl_2}  \times  \frac{100}{1} }}

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Calculate the compound amount. Use the compound amount formula and a calculator. (Round your answer to two decimal places.) P =
Julli [10]

Answer:

The compound amount is $303.03 .

Explanation:

Formula for compound interest:

A=P\times (1+\frac{R}{n})^{tn})

Principle amount  = $1100

Rate of the interest compounded semiannually :

= R = 9% = 0.09

Number of times interest compounded, n = \frac{12}{6}=2

(semi means two times in a year)

Time period = T = 14

A=\$1100\times (1+\frac{0.09}{2})^{2\times 14}=\$303.0310\approx \$303.03

The compound amount is $303.03 .

5 0
3 years ago
What is the percent by mass of aspartame in iced tea that has 0.75 g of aspartame in 250 g of water?
Vesnalui [34]

Answer:0.30%

Explanation:

6 0
3 years ago
Why is citric acid added to food? to add color to add tartness to add bitterness to add sweetness
Sergeu [11.5K]
To add tartness / good luck and will you mark me brainliest please
8 0
3 years ago
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A man pours some hot coffee into a small cup from a large jug that contains enough coffee for several cups. Which statement corr
Stells [14]

Answer:

The correct answer is "The coffee in the jug has more thermal energy than the coffee in the cup".

Explanation:

First I had to look for the problem to know the possible answers.

In this case, the coffee jug has a large amount of coffee at the same temperature. If we analyze that the decanter and the coffee are at the same temperature, we have a homogeneous thermal system. The cup is at room temperature, so by pouring coffee into it, the temperature of the coffee decreases to balance with the temperature of the cup. At this moment, the temperature of the cup-cafe system is lower than the jug-cafe system.

Thermal energy is the part of the internal energy of an equilibrated thermodynamic system that is proportional to its absolute temperature and increases or decreases by energy transfer.

In this way, we can ensure that the thermal energy of the cup-cafe system is lower than that of the jug-cafe system.

Have a nice day!

3 0
3 years ago
How could you determine the acceleration of marble?
arsen [322]
Since f=ma assuming you knew the mass of the marble and the total amount of force acting on it than you would divide the amount of force by the mass.
4 0
3 years ago
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