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diamong [38]
3 years ago
15

The variables for this experiment include the physical properties of the solutions and the pH of each solution. Use the drop-dow

n menus to complete the sentences and identify the independent and dependent variables. The independent variable, the one that is intentionally manipulated, is . a)the pH of the solutions b) the physical properties c) the system of measurement The dependent variable, the one that you measure the response in, is . a) the pH of solutions b) the physical properties c) the system of measurement

Chemistry
2 answers:
Mashcka [7]3 years ago
7 0

Answer:

here is the answer

Explanation:

Sever21 [200]3 years ago
6 0

Answer:

B,D

Explanation:

In December, a city in the Southern Hemisphere has warm weather all month long.

What causes this to happen?

The city experiences fewer hours of daylight.

The city is experiencing a winter solstice.

There is a high concentration of the Sun’s rays in that region.

The Sun reaches its highest point in the sky during this month.In December, a city in the Southern Hemisphere has warm weather all month long.

What causes this to happen?

The city experiences fewer hours of daylight.

The city is experiencing a winter solstice.

There is a high concentration of the Sun’s rays in that region.

The Sun reaches its highest point in the sky during this month.

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Dan bikes 10 km west and then bikes another 5 km west. What is Dan's
777dan777 [17]
C

This is because 10+5=15
15/45=0.3
4 0
2 years ago
Sulfur oxide is a main source of acid deposition. <br> a. True <br> b. False
ICE Princess25 [194]
True

The main chemicals in air pollution that create acid rain are sulfur dioxide (SO2) and nitrogen (NOx).
3 0
3 years ago
What is the coefficient for calcium oxide? CaO(s) + CO2(g) → CaCO3(s)
VARVARA [1.3K]

Answer:

The coefficient is 1

Explanation:

CaO(s) + CO2(g) -> CaCO3(s)

In the balanced equation, the coefficient for CaO is 1

The coefficient represents the number of moles of a compound in the stoichiometry of the reaction

4 0
3 years ago
Please Help me if you can!:) i appreciate anything.
enot [183]

Explanation:

1

Number of nucleon =

Molarmassofnucleon

Massofatom

=

1.6726×10

−24

g/nucleon

3.32×10

−23

g

=19.8=20(approximately)

It is given that element comprises of 2 atoms

Hence,number of nucleon = 2×20=40

2

You have 4.70 mol H2O

There are two H atoms in 1 molecule H2O.

Therefore, there must be 2*4.70 = 9.40 mols H in 4.70 mols H2O.

How many mols O in 4.70 mols H2O? That's 4.70 mols, of course.

Said another way, you have 2 mols H for every 1 mol H2O and 1 mol O for every 1 mol H2O.

So for 50 mols H2O you have 100 mols H and 50 mol O.

7 0
2 years ago
Which is most often used to destroy bacteria?
vovangra [49]
Iodine- in most cleaning solutions
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2 years ago
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