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Dmitry_Shevchenko [17]
3 years ago
10

Answer this i’m so confused

Chemistry
1 answer:
lesya692 [45]3 years ago
6 0

Answer:

You can answer anything

Explanation:

Anything

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Write the chemical equations for each of the reactions described below:
Cerrena [4.2K]

Answer:

BeCl2 + 2AgNO3 ---> Be(NO3)2 + 2AgCl

3 0
3 years ago
Density measurements were conducted on a 22.5oC sample of water which had a theoretical density of 0.997655 g/ml. A volume of 10
Sophie [7]

Let's divide the three experiments: The experiment with 10.00 mL of water is A), the experiment with 15.00 mL is B), and the experiment with 25.00 mL is C).

  • (1) Now let's calculate the experimental density of each experiment. Density (ρ) is equal to the mass divided by the volume, thus:

p_{A} =9.98g/10.00mL=0.998g/mL\\p_{B} =15.61g/15.00mL=1.041g/mL\\p_{C} =25.65g/25.00mL=1.026g/mL

  • (2)To calculate the average density, we add each density and divide the result by the number of experiments (in this case 3):

p_{average}=\frac{p_{1}+p_{2}+p_{3}}{3}   \\p_{average}=\frac{(0.998+1.041+1.026)g/mL}{3}\\p_{average}=1.022g/mL

  • (3) The percent error is calculated by dividing the absolute value of the substraction of the theorethical and experimental values, by the theoretical value, times 100:

%error=\frac{|p_{average}-p_{theoretical}|}{p_{theoretical}} *100

%error=\frac{|1.022g/mL-0.997655g/mL|}{0.997655g/mL}*100

%error=2.44 %

7 0
3 years ago
What new information can you add to your definition of chemical change?
ivolga24 [154]
Something that can not be undone. Like baking bread..cant be undone.
5 0
4 years ago
The Moon rises at noon and sets at midnight. What is the phase of the Moon?
Sidana [21]
The answer is full moon

5 0
4 years ago
Read 2 more answers
7.6 The diagrams show the atoms in four different substances. Each circle represents an atom.
Illusion [34]

Answer:

A and C represent elements while B and D represent Compounds

Explanation:

chemical elements cannot be broken down into simpler substances by any chemical reaction. While A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds

8 0
2 years ago
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