Answers RKAA- Second Semester Civics and Citizenship 0.5 NewFollow the Money: Local Budgets

Follow the Money: Local Budgets — Cumulative exam Answers

25 verified answers2 views

Vincent graduated from college with a degree in horticulture and now owns a local plant nursery. He maintains a blog titled, "How to Live a Happy Life,” and writes that people can lead happier lives by varying the routes they usually take home from work.

This claim is scientific because it is based on Vincent’s personal experience.

This claim is scientific because other people have taken his advice and are now happier.

This claim may not be accurate because the blog is produced by someone who is not an expert in the field of human psychology.

This claim may not be accurate because most people follow the same route home.

Free Preview

What is a limitation of using a chemical formula, such as C6H12O6, to represent a compound?

The chemical formula does not show the types of elements that make up the compound.

The chemical formula does not show how the atoms are connected to one another.

The chemical formula does not show the number of atoms of each element in a molecule.

The chemical formula does not show the chemical symbols of the elements in the compound.

The table shows results of an experiment that was replicated.

They are precise and reproducible.

They are precise but not reproducible.

They are accurate and reproducible.

They are accurate but not reproducible.

Consider the reaction below.2Al2O3 4Al + 3O2How many moles of oxygen are produced if 11.0 mol of Al are produced?

8.25 mol

11.0 mol

14.7 mol

16.5 mol

Which state(s) of matter have no definite shape or volume?

liquids and solids

liquids and gasses

gasses

solids

How many atoms of each element are in the chemical formula NH4NO3?

1 nitrogen, 1 hydrogen, and 3 oxygen

1 nitrogen, 4 hydrogen, and 3 oxygen

2 nitrogen, 4 hydrogen, and 3 oxygen

5 nitrogen, 1 hydrogen, and 1 oxygen

The equation for water is H2 +O2 → H2O. To balance the equation, which coefficient should be placed in front of H2 and H2O?

Calcium, magnesium, and strontium are near each other on the periodic table and have some characteristics in common, but they differ in chemical reactivity. Which lists these metals in order from most reactive to least reactive?

calcium, magnesium, strontium

magnesium, calcium, strontium

strontium, calcium, magnesium

strontium, magnesium, calcium

Gerard lives in a tropical region where the average annual temperature is 77°F and the average annual rainfall is more than 100 inches a year. He surveys 25 people in his neighborhood about items they regularly use and records the data into a table.

umbrellas

insulated gloves

raincoats

rubber boots

Which type of reaction is Mg + S → MgS?

polymerization

synthesis

replacement

decomposition

best

The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.

The atoms in hydrogen peroxide are breaking apart and recombining into the original molecules.

The molecules of hydrogen peroxide remain intact as new types of molecules form and move out of the liquid.

The molecules of hydrogen peroxide remain intact but move more quickly to allow evaporation.

Consider the equation below.Zn + H2SO4 ZnSO4 + H2The mole ratio of zinc to zinc sulfate is

1:1.

1:2.

2:1.

3:1.

Lars is balancing equations with his study group. He is unsure about one equation because each member of the study group came up with a different answer. Which is the proper way to balance the equation Ca(OH)2 + H3PO4 → Ca3(PO4)2 + H2O?

Ca(OH)2 + H3PO4 → Ca3(PO4)2 + 6H2O

3Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 6H2O

3Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 3H2O

Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 6H2O

Which important change in electronic devices, such as televisions and computers, is a result of the use of metalloids as semiconductors?

Electronic devices have become smaller.

Electronic devices are now more brittle.

Electronic devices now use more energy.

Electronic devices have become more expensive.

What is an atomic nucleus?

the outer part of an atom in which electrons move

the outer part of an atom in which neutrons move

the central part of an atom, composed of protons and neutrons

the central part of an atom, composed of protons and electrons

How does Rutherford’s model of the atom compare with Thomson’s model?

They both describe atoms as small, indivisible spheres.

They both describe electrons as moving around the nucleus.

They both describe electrons as being surrounded by the positive matter.

They both describe atoms as being made up of positive and negative matter.

Students are completing a table about a particular subatomic particle that helps make up an atom.What best explains how they should complete the table?

with “Inside the nucleus,” because the particle is a proton

with “Inside the nucleus,” because the particle is a neutron

with “Outside the nucleus,” because the particle is a proton

with “Outside the nucleus,” because the particle is an electron

Which is one reason why hydrogen is considered a better fuel source for cars?

It is nonrenewable.

It produces carbon dioxide.

It emits no harmful emissions.

It combines with water to produce electricity.

The diagram shows two water molecules. What does the dotted line between the water molecules represent?

a polar bond

a covalent bond

a hydrogen bond

an electronegative bond

An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. Which is the best conclusion that can be drawn?

The atom has 7 neutrons and 8 protons.

The atom has 7 electrons and 8 protons.

The atom has 8 neutrons and 7 electrons.

The atom has 8 electrons and 7 protons.

Did you find these answers helpful?

Follow the Money: Local Budgets — Cumulative exam Answers

More from this Course

TRY EDGENUITY HACKS