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American National Curriculum

Grade 10

Grade 10 Questions asked by Filo students

Question 61

Views: 5,595

0.00004786 kg

to 2 sig figs. 5. Look over reading a graduated cylinder... to what decimal place do you record the volume? 6. What does the Law of Conservation of Mass state and if mass is gained or lost during a reaction, what are some reasonable explanations? 7. Differentiate between the 3 states of matter and how they differ on a particle level. 8. Classify the following as: chemical change, physical change, chemical property, physical property:

Boiling water
Red liquid
Density
Flammability
Evaporation

Topic:

Matter and Energy in Living Systems

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Question 62

Views: 5,998

What are the 4 indicators of a chemical change? 10. How do you...

solve for mass when given density and volume?
solve for volume when given mass and density?

Topic:

Matter and Energy in Living Systems

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Question 63

Views: 5,202

When calcium (Ca) burns in the presence of oxygen

(O_{2})

, calcium oxide

(CaO)

forms according to the chemical equation:

2 Ca + O_{2} \to 2 CaO

How many moles of Ca would be needed to react with 1 mole of

O_{2}

1/2

4) (5)

Topic:

Bonding and Chemical Reactions

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Question 64

Views: 5,651

Based on the balanced chemical equation:

HCl + NaOH \to NaCl + H_{2} O

Which conversion factor will not be needed to calculate the mass of

H_{2} O

produced when 40 grams of

NaOH

react? Select one:

\frac{18 grams H _{2} O}{1 mole H _{2} O}

\frac{40 grams NaOH}{I mole NaOH}

\frac{58.4 grams NaCl}{1 mole NaCl}

Topic:

Bonding and Chemical Reactions

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Question 65

Views: 5,752

Based on the balanced chemical equation:

HCl + NaOH \to NaCl + H_{2} O

Which conversion factor will not be needed to calculate the mass of

H_{2} O

4 O

NaOH

react? Select one:

\frac{18 grams H _{2} O}{1 mole H _{2} O}

\frac{4 O grams NaOH}{I mole NaOH}

\frac{58.4 grams NaCl}{1 mole NaCl}

Topic:

Bonding and Chemical Reactions

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Question 66

Views: 5,499

When calcium (Ca) burns in the presence of oxygen

(O_{2})

, calcium oxide

(CaO)

forms according to the chemical equation:

2 Ca + O_{2} \to 2 CaO

How many moles of Ca would be needed to react with 2 moles of

O_{2}

1/2

Topic:

Bonding and Chemical Reactions

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Question 67

Views: 5,858

Given the balanced equation representing a reaction:

2 H_{2} + O_{2} \to 2 H_{2} O

What is the total mass of water formed when 8 grams of hydrogen reacts completely with 64 grams of oxygen? Select one:

18 g

56 g

36 g

72 g

Topic:

Bonding and Chemical Reactions

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Question 68

Views: 5,447

Plants use the process of photosynthesis to convert. carbon dioxide and water into glucose and oxygen.

6 CO_{2} + 6 H_{2} O \to C_{6} H_{12} O_{6} + 6 O_{2}

Carbon Water Glucose Oxygen Dioxide If a plant uses 44 grams of carbon dioxide and 18 grams of water to produce 32 grams of oxygen, how many grams of glucose are produced for the plant to use? Select one: 62 grams 26 grams 94 grams 30 grams

Topic:

Bonding and Chemical Reactions

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Question 69

Views: 5,732

ction calculator allowed | Drew Roberson Nuclear Change 1:Question 1 Which one of the following statements about nuclear reactions is false? Select one: Particles within the nucleus are involved. They are often accompanied by the release of enormous amounts of energy. No new elements can be produced. Rate of reaction is independent of the presence of a catalyst. Rate of reaction is independent of temperature.

Topic:

Nuclear Chemistry

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Question 70

Views: 5,640

Nuclear Change 1:Question 2 Which of the following correctly balances this decay reaction

?_{90}^{200} Th \to_{- 1}^{0} e +

$^{230} Th$
$_{200}^{20} Ac$

Topic:

Nuclear Chemistry

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Question 71

Views: 5,115

Four-function calculator allowed | Drew Roberson Nuclear Change 1:Question 4 What nuclide is formed by the

β

^{228} Ra

_{88}^{228} Ra \to⟶ +_{- 1}^{0} e^{-} + \overset{ν}{ˉ}_{e}

_{89}^{228} Ra

_{87}^{228} Ra

_{89}^{228} Ac

_{87}^{228} Ac

Topic:

Nuclear Chemistry

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Question 72

Views: 5,441

Nuclear Change 1:Question 5 Christopher drew a graph to show changes in the mass of Barium-122 (Ba) during 10 minutes of radioactive decay. Radioactive Decay of Barium-122 Based upon the results, what is the half-life of Barium-122 in minutes? Select one: 1

Topic:

Nuclear Chemistry

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Question 73

Views: 5,812

unction calculator allowed | Drew Roberson Nuclear Change 1:Question 6 Uranium emits a type of radiation that can be harmful to humans if inhaled or swallowed, but it will not penetrate human skin. Which of the following describes the type of radiation emitted by uranium? Select one: alpha radiation neutron radiation gamma radiation beta radiation

Topic:

Nuclear Chemistry

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Question 74

Views: 5,542

GAS LAW CALCULATIONS: Problem Set B. (SHOW ALL WORK)

A sealed flask contains $2.00$ moles of helium and $3.00$ moles of nitrogen. If the total pressure of the container is $200. KPa$ , what is the partial pressure of the nitrogen?
A $6.55$ Liter gas canister has a pressure gauge that reads $4.45$ atmospheres and a temperature gauge that reads $31. 5^{\circ} C$ . How many moles of gas are in the container?
At a temperature of 290. Kelvin, a 500, milliliter gas sample has pressure of $1.50$ atmospheres. If the pressure is changed to $3.75$ atmospheres at what temperature will the gas sample have a volume of 675 milliliters?
A gas occupies a volume of $30.0$ milliliters at STP. If the temperature is increased to 350. Kelvin, what will the new volume be if pressure remains constant?
Whose law is demonstrated by \#4? (harks' $Low$
How much heat energy is needed to convert 350 . grams of water to water vapor?

Topic:

Structure and Properties of Matter

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Question 75

Views: 5,328

4) A gas occupies a volume of

30.0

milliliters at STP. If the temperature is increased to 350. Kelvin, what will the new volume be if pressure remains constant? 5) Whose law is demonstrated by \#4? Charles2 LoW 6) How much heat energy is needed to convert 350. grams of water to water vapor? 7) 640. joules of energy are released when 4 grams of water is cooled. If the initial temperature of the water was

99. 0^{\circ} C

, what would the final temperature be?

Topic:

Energy

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Question 76

Views: 5,345

4. Construct a cooling curve for water and calculate how much heat is release. Start with the gas phase at a temperature of 105 degrees

C

and go all the way to down to

- 10

C

. Does a cooling curve illustrate an endothermic or exothermic process?

Topic:

Energy

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Question 77

Views: 5,708

The diagram show a sector of a circle with center and radius .

The total perimeter of the sector is .
Calculate the value of .

(1)

Topic:

Mathematics

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Question 78

Views: 5,367

Question: 12 The criteria retailer must meet to receive a reduced penalty and/or protect the license/permit if an illegal alcohol sale takes place at the establishment is often referred to as:

Safe Harbor
The Dram Shop Act
Deferred Justice
Probation Plan

Topic:

Human Activity and Climate

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Question 79

Views: 5,398

Name: Narrisha Jurphy Date:Vanl, 2033 Multiple Choice: Place the letter of the best answer in the blank. 1. Which of the following was a major reason for the Reformation?

European merchants and princes resented paying taxes to the Church in Rome.
The Church was threatening to excommunicate the king of France.
The pope in Rome insisted on speaking only Latin.
Martin Luther said he could interpret the Bible better than the pope.

Topic:

Natural Selection and Evolution

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Question 80

Views: 5,334

Martin Luther listed his grievances with the Catholic Church in his ? 2. "Ihtaina"

Edice of Worms
Council of Trent
95 Theses

Topic:

Natural Selection and Evolution

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