Chemistry » Page 53

Chemistry

Guest

What would cause a moving object with inertia to change direction

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Chemistry

Phillip

Ionic formula for sodium oxide

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Chemistry

Jessie Sims

The chemical reactions done by living organisms are known as

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Chemistry

Cody Graham

When you add salt to water it makes the solution boil

A. faster.

B. at a lower temperature.

C. at a higher temperature.

D. slower.

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Chemistry

Delaney Harper

How many mole ratios can be written for a chemical reaction involving 3 substances

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Chemistry

Spotty

The electron cloud model describes which of the following?

1. The negative charge of the electron

2. the neutron orbital

3. the fuzzy path where electrons most likely have been

4. the group of protons that are in the nucleus

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Chemistry

Brooks Simpson

Which equation represents a neutralization reaction?

a. LiOH (aq) + HBr (aq) - >LiBr (aq) + H20 (1)

b. 2HCl (aq) + Zn (s) - > ZnCl2 (aq) + H2 (g)

c. H2CO3 (0) - -> H2O + CO2 (g)

d. 2NaHCO3 (s) - > Na2CO3 (s) + H2O (g) + CO2 (g)

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Chemistry

Lilian Moreno

What is the product of a force and the time during which the force acts

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Chemistry

Harold Zhang

Calculate the molarity of kcl in the solution if the total volume of the solution is 239 ml.

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Chemistry

Mattie Vargas

Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.77 kg. Note that the density is provided in different units of volume and mass than the desired units of volume (dL) and the given units of mass (kg). You will need to express the density in kg/dL (1 cm3 = 1 mL) before calculating the volume for the piece of iron.

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Chemistry

Alena Sims

Why is the data for water different from the elements, hydrogen and oxygen?

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Chemistry

Antoine Vazquez

The sources of errors in the kinetic experiment are:

a. Tools

b. Personal

c. Method

d. All of the above

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Chemistry

Cornelius Roberson

What must be true when work is done?

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Chemistry

Amari Woodward

What valley could be younger

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Chemistry

Guest

When the atoms of two substances joined to make a new substance the process is called?

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