Answer: 35. it is 100°C
36. there is 7 periods in the periodic table
37. A heterogeneous mixture consists of visibly different substances or phases. ... Solutions have particles which are the size of atoms or molecules - too small to be seen. Oil and water form a heterogeneous or cereal and milk also makes a heterogeneous. a example of solution mixture is salt and water or rubbing alcohol.
38. A two phase mixture is a mixture of two different substances. An example of a two phase mixture would be a soft drink. It is a liquid and a gas. To separate these two substances you could heat the liquid and then capture the carbon dioxide.
Explanation:
I hope this helps you out buddy stay safe
The model represents a
Answer:
i think you forgot to add a picture
Which of the following statements is most accurate?
A. When liquid water is heated, the molecules move faster.
B. When liquid water is heated, the molecules collide more often.
C. When liquid water is heated, collisions between molecules are more violent.
D. All of the above.
Answer:
D: All of the above
Explanation:
It's all of the above, they are all pretty similar to the accurate answer.
Answer:
D
Explanation:
Water
Specific Heat (J/c "C)
4.184
How much heat is needed to change the temperature of 50.0 g of water to 20.0°C
Answer:
The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.
Explanation:
The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.
Use what you know about periodic trends and the periodic table to answer the questions below.
Which atom attracts electrons most strongly when bonded?
oxygen (O)
magnesium (Mg)
Answer:
oxygen (O)
Explanation:
Answer:
A) oxygen (O)
Explanation:
edge 2023
Which of the following statements about matter at
room temperature is true?
a. A solid has a definite volume, but a liquid's
volume can change.
b. Both a solid and a liquid Have a definite shape.
c. A solid has a definite shape, but a liquid's shape
can change.
d. Both a solid and a liquid have volumes that can
change.
e. A solid's shape can change, but a liquid has a
definite shape.
Answer: D
Explanation: If there was ice, the volume will change, if there was liquid (ex: water), it wouldn’t melt.Density is a physical property of a molecule that’s measured as mass per unit volume. (a) Given that density is usually expressed in the units of g/cm^3, calculate the density of a cube of plastic that has a mass of 2.331 g and an edge length of 1.500 cm (volume of a cube is V = l^3). (Show work pls + WILL MARK BRAINLIEST)
Answer:
0.690666... g/cm^3
Explanation:
density=mass/volume. mass is 2.331 g and using the length we can determine that the volume of the cube is 3.375 cm^3. 2.331/3.375= 0.6906666....
Select the reason cities tended to develop at the fall line on rivers.
PLZ HELP WILL GIVE U BRANILEIEST
Answer:
I'm pretty sure it is C
Explanation:
because it has the same number of protons and neutrons
What are the 3 ways that materials can bond?
Answer:
Ionic bonding
covalent bonding
metallic bonding
Answer:
Iether they Heat up and melt together, Gravity pulls them together into one, Or the atoms inside one decide to bond with the other.
Explanation:
Question 3 is weird but I ran out of answers.
Which of the following is a result of intermolecular forces
Answer:
The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds
Which of the following are signs of a chemical change/reaction? Select all that apply.
1. A change in mass.
2. A change in energy (hot, cold, light)
3. A change in volume.
4. A change in odor.
5. A change in color.
6.A change in phase/state.
7. Boiling.
8.Melting.
9. Freezing.
Answer:
the answers are
Explanation:
5,6,7,8&9.
What has the higher first ionization energy? Mg or Cl
Ionization Trend: First ionization energy will increase left to right across a period and increase bottom to top of a family (column).
If we compare Mg and Cl:
Mg is column 2 (far left) in the periodic table, while Cl is column 17 (far right). Based on the ionization rule explained above, Cl will have the higher first ionization energy.
Cube has a mass of 15g and the volume is 30cm what’s its density
Formula for:
* Density: D = M/V?
* Mass: ?
* Volume?
(CHEMISTRY FORMULAS ONLY!!)
Which statement describes an energy measurement?
A. An object travels 14 m.
O B. A car has a mass of 1,250 kg.
C. A rocket travels at 11 m/s.
D. Burning natural gas releases
21,000 kJ.
Answer:
D)a burning natural gas releases 21,000 kj
what is the mass of 80.0mL of ethanol at 20 degress celcius
Answer: What is the mass, in grams, of 135 mL of ethanol? d=0.789 g/mL - the ethanol density. V=135 mL - the volume of ethanol. m=0.789g/mL*135mL=106.515g ~ 106.5g- the mass of ethanol.
Explanation:
Hope this helps :)
6. How many millimeters are there in 2.0 meters?
7. How many grams are there in 5.0 kilograms?
8. How many liters are there in 15.0 centiliters?
Find the element. Plz help!
Answer:
Hydrogen.
Explanation:
We see in the nucleus that we have 1 proton and 1 neutron.
The number of protons in the nucleus determines which element it is.
Element with 1 proton is the 1st element on the Periodic Table, Hydrogen.
Need answer ASAP.
Which areas of the Earth receive the LEAST amount of sunlight?
A-the equator
B-the temperate zone
C-the tropics
D-polar regions
HELP PLEASE
Chemical name for As2S3
Answer:
Chemical name for As2S3 is Arsenic sulfide
Explanation:
Answer:
Arsenic Sulfide
Explanation:
Which group of elements should all have similar chemical behavior?
magnesium, strontium, and sodium
b) sulfur, phosphorus, and silicon
c) hydrogen, oxygen, and nitrogen
d) argon, helium, and neon
Answer:
the correct answer is D
Who would most likely be required to work with sodium hydroxide?
a plumber
a gardener
a bricklayer
a mechanic
Need answer ASAP
Sodium hydroxide NaOH is proven to be an active agent for improving the mechanical properties of the bricks. Hence, bricklayer most likely need sodium hydroxide.
What is sodium hydroxide?Sodium hydroxide is an ionic compound formed by the metallic sodium and water. Sodium hydroxide has the chemical formula NaOH. It is a strong base and used as a reagent in many chemical synthesis which has to be carried in presence of a base.
Sodium hydroxide has an effect on the drying kinetics of bricks which are made with clay. Studies reported that the drying duration is linearly related with the concentration of NaOH.
Drying duration of bricks layers increases with increase in concentration of NaOH as well as the material porosity decreases. and hence the bricks will not show the visible cracks. Therefore, bricklayer need NaOH.
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Answer:
A) a plumber
Explanation:
What is the most likely reason that nonmetals are electrical insulators?
Since valence shells are mostly empty in nonmetal atoms, the atoms attract and hold any electrons they can in order to fill their valence shells.
Since valence shells in nonmetal atoms are almost full, the atoms attract electrons and hold them tightly to fill their valence shells.
Since all nonmetals have valence shells that are full, they hold electrons tightly to avoid changing.
Since all nonmetals have valence shells that are completely empty, they do not attract or release any electrons.
Answer:
Since valence shells are mostly empty in nonmetal atoms, the atoms attract and hold any electrons they can in order to fill their valence shells.
Answer:
a
Explanation:
Explain how balancing chemical equations relates to the law of conservation of matter.
Answer:
In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Showing that Mass cannot be created nor destroyed in a chemical reaction
Explanation:
What is the effect of constant stirring on the solubility of solids and liquids?
Stirring affects how quickly a solute dissolves in a solvent, but has no effect on how much solute will dissolve. The amount of solute that will dissolve is affected by temperature - more will dissolve at higher temperatures. This is called the solubility of the solute
Help Please. The word tsunami comes from a Japanese word meaning _________________. *
A. harbor wave
B. earthquake wave
C. tidal wave
D. harbor tide
Answer:
A.
Explanation:
give brainlist
is hydrogen a neutral atom or ion
Answer:
Hydrogen is the smallest chemical element. It has one proton and one electron, making it neutral. However, the ions of hydrogen atom are charged species. Thus, the key difference between hydrogen atom and hydrogen ion is that the hydrogen atom is neutral whereas hydrogen ion carries a charge.
Answer:
A normal hydrogen (H) atom does not have any neutrons in its tiny nucleus. That tiny little atom (the tiniest of all) has only one electron and one proton. You can take away the electron and make an ion, but you can't take away any neutrons.
Explanation:
A continental slope is the boundary between what to types of Earth's crust?
A Basalt and Sandstone
B Convergent and Divergent
C Continental and Oceanic
D Volcanic and Sedimentary
Answer:
c
Explanation:
I took the k12 test and got it right
A continental slope is a boundary between the Continental crust and Oceanic crust. Therefore, option (C) is correct.
What is a continental slope?A continental slope can be described as the slope between the outer edge of the continental shelf and the deep ocean floor. The continental slope is defined as a cut by submarine canyons in many locations and marks the seaward edge of the continental shelf.
Continental slopes follow the boundary between continental and oceanic crust. The Continental slope has a steepness range from 1 to 25 degrees, the average is 4 degrees.
The continental margin lies between the continental shelf and the abyssal plain and comprises a continental slope that is surrounded by the flatter continental rise. It contains thick sediments deposited by currents from the shelf and slope.
The shelf generally ends at a point of increasing slope known as the shelf break and the sea floor under the break is the continental slope.
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If 10 milliliters of liquid has a mass of 70 grams, what is its density?
O 7 g/mL
70 g/mL
0.7 g/mL
700 g/mL
Answer:
The answer is 7 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 70 g
volume = 10 mL
We have
[tex]density = \frac{70}{10} \\ [/tex]
We have the final answer as
7 g/mLHope this helps you
1.the study of blood serology
2.the development of digital storage and technology for use in bioscience applications biochemistry
3.the study of poisons genetics
4.the study and use of biological structures and processes for industrial purposes bioinformatics
5.the scientific study of heredity epigenomics
6.the study of the effects and interaction of the expression of genes toxicology 7.the study of the chemistry of organisms biotechnology
8.the study of decomposition of bodies after death anthropology
The various field of science include the following;
1. Serology.
2. Bioinformatics.
3. Toxicology.
4. Biotechnology.
5. Genetics.
6. Epigenomics.
7. Biochemistry.
8. Taphonomy.
"Fields of Science"Science is the interest and application of information and understanding of the normal and social world taking after a precise strategy based on prove.
1. Serology: The study of blood.
2. Bioinformatics: The development of digital storage and technology for use in bioscience applications.
3. Toxicology: The study of poisons.
4. Biotechnology: The study and use of biological structures and processes for industrial purposes.
5. Genetics: The scientific study of heredity.
6. Epigenomics: The study of the effects and interaction of the expression of genes.
7. Biochemistry: The study of the chemistry of organisms.
8. Taphonomy: The study of decomposition of bodies after death.
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