Chemistry

chemistry-11

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117253

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Noble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?

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117256

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What is the most common isotope of hydrogen?

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117257

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You can't live without water! What is its chemical formula?

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117259

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Who is credited with the invention of the modern periodic table?

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117263

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Which of these elements is a nonmetal?

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117267

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Organic chemistry is the study of the compounds that make up living organisms. All organic molecules contain:

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117270

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The symbol Ag stands for which element?

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117271

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Three of the most common states of matter are solids, liquids, and gases. A liquid has:

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117272

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You can't live without iron. Where in the body is most of the iron located?

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117273

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A mole contains Avogadro's number of items. What is Avogadro's number?

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117207

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One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?

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117231

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If you fill a glass to the brim with ice water and the ice melts, what will happen?v

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117232

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The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?

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Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?

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117246

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Chemistry

Question 1 of 1

Time Left

Noble gases are inert because they have completed outer electron shells. Which of these elements isn't a noble gas?

Select the correct answer(s).

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What is the most common isotope of hydrogen?

Select the correct answer(s).

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You can't live without water! What is its chemical formula?

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Who is credited with the invention of the modern periodic table?

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Which of these elements is a nonmetal?

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Organic chemistry is the study of the compounds that make up living organisms. All organic molecules contain:

Select the correct answer(s).

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The symbol Ag stands for which element?

Select the correct answer(s).

(0/0)

Three of the most common states of matter are solids, liquids, and gases. A liquid has:

Select the correct answer(s).

(0/0)

You can't live without iron. Where in the body is most of the iron located?

Select the correct answer(s).

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A mole contains Avogadro's number of items. What is Avogadro's number?

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One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?

Select the correct answer(s).

(0/0)

If you fill a glass to the brim with ice water and the ice melts, what will happen?v

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(0/0)

The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?

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Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?

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DNA codes for proteins, which are the building blocks of organisms. What is the most abundant protein in the human body?v

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