Archive day

December 3, 2025

3,385 public questions were asked on this day.

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During a test, what can a student use to identify what type and how many atoms are in a chemical compound? Responses chemical names chemical names the International Union of Pure and Applied Chemistry the International U...
Asked by khare 1 answer
Which is the charge of an ion that could bond to the one pictured? Responses positive positive neutral neutral negative negative zero
Asked by khare 1 answer
Formaldehyde is an organic compound. Each molecule includes two hydrogen atoms, one oxygen atom, and one carbon atom. Below are the dot structures for each of these elements.​ At left, a purple circle labeled H surrounde...
Asked by khare 1 answer
Fluorine has an atomic number 9. It is in period 2 of the periodic table. The diagram shows the electron dot diagram of a fluorine atom. F with 2 dots each above, right, below and 1 dot left. How many valence electrons a...
Asked by khare 1 answer
Which refers to a representation of a compound that gives the number of atoms and types of atoms in a compound? Responses bond bond symbol symbol subscript subscript formula formula
Asked by khare 1 answer
Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements in the compound. What tool will she use next? Responses a scale a scale the prefix chart th...
Asked by khare 1 answer
What is the chemical formula of water? Responses cap n sub 2 cap o cap h sub 2 cap o NH sub 3
Asked by khare 1 answer
What is the subscript for nitrogen in hydrazine, ? Responses 2
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What is the chemical formula for carbon tetrafluoride? Responses cap c sub 4 cap f cap c sub 4 cap f sub 4 CF sub 4 CF
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Which refers to the chemical name of ? Responses monocarbon monoxide monocarbon monoxide monoxide carbon monoxide carbon carbon oxide carbon oxide carbon monoxide
Asked by khare 1 answer
Martije has made a slight error in naming a compound monocarbon tetrabromide. What compound is she most likely naming, and what is its correct name? Responses (carbon tetrabromide) cap c cap b sub 4 (carbon tetrabromide)...
Asked by khare 1 answer
Ammonia is a covalent compound used in many cleaners. What is its chemical formula? Responses cap h sub 2 cap o NH sub 3 HO sub 3 cap n sub 2 cap o
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How can a periodic table help a chemist write the chemical name of a compound from its chemical formula? Responses by determining the subscripts by determining the subscripts by determining the number of atoms by determi...
Asked by khare 1 answer
Sebastian wants to write the chemical formula for phosphorus tetraoxide. He identifies the chemical symbols as and . Which additional step will he take in his process? Responses identify the elements involved as potassiu...
Asked by khare 1 answer
A car weighing 15000 N rounds a curve of 60 m radius banked at angle 30°. Find the friction force acting on tires when the car is travelling at 100 kph. The coefficient of friction force between the tires and the road is...
Asked by fasf 1 answer
which phrase is description of 3k+2 a 3 times the sum of k and 2 b 2 more than the quotient of 3 and k c 2 more than 3 more than k d 2 more than 3 times k
Asked by cj 2 answers
is the chemical formula of a covalent compound used in the production of whipping cream. Its first name is nitrogen and the second name is oxide. What is the chemical name of this compound? Responses nitrogen monoxide ni...
Asked by khare 1 answer
is the chemical formula of a covalent compound used in the production of whipping cream. The elements that make up this compound are nitrogen and oxygen. What is the name of the second element in the chemical name of thi...
Asked by khare 1 answer
is the chemical formula of a covalent compound used in the production of whipping cream. The elements that make up this compound are nitrogen and oxygen. Which element name is written first in the chemical name of the co...
Asked by khare 1 answer
is the chemical formula of a covalent compound used in the production of whipping cream. What two elements make up this compound? Responses neodymium and oxygen neodymium and oxygen nickel and oxygen nickel and oxygen ni...
Asked by khare 1 answer
1) The Great Wave off Kanagawa - Culture/Date/Artist: Japanese (Edo, ukiyo-e), Katsushika Hokusai, c.1830–32 (woodblock). - Image: Reproductions in Met, British Museum, public domain. - Why chosen: Iconic, dramatic—shows...
Asked by caseoh sigma sterling 1 answer
Place the steps for writing chemical names in the proper order.
Asked by khare 1 answer
Writing the Chemical Formula of a Covalent Compound Phosphorus trichloride is used in the production of chemicals that keep plants from growing in a specific area. This compound is made of one phosphorus atom represented...
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Phosphorus trichloride is used in the production of chemicals that keep plants from growing in a specific area. This compound is made of phosphorus atoms represented by the chemical symbol and chlorine atoms represented...
Asked by khare 1 answer
Phosphorus trichloride is used in the production of chemicals that keep plants from growing in a specific area. This compound is made of phosphorus and chlorine atoms. What two symbols would make up the chemical formula...
Asked by khare 1 answer