:It's important for scientists to know the properties of matter because all things are made up of matter. Each type of matter has different physical characteristics and scientists need to know and understand these characteristics to make calculations.
Explanation:
Answer:
its not
Explanation:
bc its dumb.. thx for the points
plzzz help me i promise will mark u brainiest
Answer:
d) water
Explanation:
Answer:
C) sodium chloride
Which metal would form a stronger metallic bond?
A.sodium
B.tungsten
C.strontium
D.lithium
Answer:
c
Explanation:
Explain how light is produced in neon signs.
Answer:
The energy that makes light is 'produced' when you pass a high-voltage alternating current through a low-pressure gas sealed in a glass tube.
Explanation:
The piece of metal is magnetic
Answer:
Explanation:
Magnetic materials are always made of metal, but not all metals are magnetic. Iron is magnetic, so any metal with iron in it will be attracted to a magnet. Steel contains iron, so a steel paperclip will be attracted to a magnet too. Most other metals, for example aluminium, copper and gold, are NOT magnetic.
Can someone please help me answer these 2 questions
Answer:
Days of the week are arranged in rows from left to right
Mondays in a Month are arranged in columns from top to bottom
Explanation:
A résumé should include your date of birth. True O False
Answer:
True a resume should i.
Answer:
The answer is false on edg
Why is gunshot residue important for a forensic scientist? What are the potential complications with this type of evidence?
FORENSICS
Answer:
Gunshot residue is important to forensic scientists because it can help measure the firing distance of a weapon, or if someone has fired a weapon lately based on what's on their hands. The potential complications of this evidence include it being uncertain if the residue is from another firing. This type of evidence can also be uncertain in a courtroom when firing distance is drawn into question.
Explanation:
A popular radio station broadcasts with a frequency of 94.7 MHz. What is the
wavelength of the broadcast? (1 MHz = 1x106 Hz).
Answer:
λ = 0.032×10² m
Explanation:
Given data:
Frequency of broadcasts = 94.7 MHz
Wavelength of broadcasts = ?
Solution:
Frequency of broadcasts = 94.7× 10⁶ Hz
Formula:
Speed of wave = frequency × wavelength
3×10⁸ m/s = 94.7× 10⁶ Hz × λ
λ = 3×10⁸ m/s /94.7× 10⁶ Hz
Hz = 1/s
λ = 0.032×10² m
Answer: FM: 3.17m Am: 3.66m
Explanation:
Find the number of moles of water that can be formed if you have 154 mol of hydrogen gas and 72 mol of oxygen gas.
Answer:
The answer is 144 mol.
Explanation:
"72 mol of oxygen will form only 144 mol of water, and 10 mol of hydrogen remain in excess, so the limiting reactant is oxygen and hydrogen is in excess."
A person rides in an elevator.
What is the equal and opposite force for the Earth's force of gravity pulling down on the person as
described by Newton's third law?
Answer:
Normal force
Explanation:
normal force always perpendicularly points away from a surface
Normal force is the equal and opposite force for the Earth's force of gravity pulling down on the person as described by Newton's third law.
What is force?Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.
It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.
The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.
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Wood and a cement block are considered to be transparent and are good conductors of electricity.
true or false?
Answer:
ITS FALSE electricity doesn't travel through wood same with cement!
C3H8 + 502 -->3 CO2 + 4H20 In the equation, what is the mole ratio of reactants?
What first happens When a star begins to run out of fuel
Answer: The star's core shrinks, and it becomes a white dwarf.
A rock that has a mass if 180 grams dropped in a graduated cylinder that was originally filled to 52ml; it now reads 62ml. What is the density of this object
Answer:
18 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
volume = final volume of water - initial volume of water
volume = 62 - 52 = 10 mL
From the question we have
[tex]density = \frac{180}{10} \\ [/tex]
We have the final answer as
18 g/mLHope this helps you
A balloon moves vertically upward at
5 m/s. This is an example of ?
A.speed
B. Velocity
C. Acceleration
D.Velocity and acceleration
Answer:
B. Velocity
Explanation:
The answer is Velocity because the def of velocity is the rate of constant speed in a given direction. I hope this helps, have a good night.
What helps skin repair itself after it is cut?
Question 6 options:
interphase
photosynthesis
mitosis
Answer:
The answer is mitosis.
Explanation:
Which temperature represents the highest average kinetic energy of the particles in a sample of matter?
Answer:
41 Which temperature represents the highest average kinetic energy of the particles in a sample of matter? (1) 298 K (3) 27°C (2) 267 K (4) 12°C
Explanation:
highest average kinetic energy highest temperature
Answer:
the answer is 27
Explanation:
A triple bond has _____
shared electrons.
8
4
2
6
Answer:
8
Explanation:
What does it mean if an element has no subscript in a chemical formula?
A. There are an uncertain number of atoms of that element in the
molecule.
B. The number of atoms of that element in the molecule can vary.
C. There is one atom of that element in the molecule.
D. There are no atoms of that element in the molecule.
there is one atom of that element in the molecule
two students are working together to build a birdhouse. Student 1 applies a force of 10 N to a wooden board in order to slide it across the table to student 2. If the force of fraction resisting the student ´s push is 4 N, what is the net force acting on the board?
Answer:
6
Explanation:
if there is 10n and the friction is 4n on the table then it is 6n.
i hope this helps you! :)
what is the
formula and valency of
thiosulphate
Energy is defined as...
A.
the ability to do work.
B.
the ability to dissolve in water.
C.
the mass of a substance times its acceleration.
D.
how radioactive a substance is.
Answer:
A
Explanation:
the ability to dissolve in water
Answer: B.
Explanation: The ability to do work
Which of the following elements is not a diatomic molecule?
O carbon
O nitrogen
O chlorine
O hydrogen
Is party mix a example of a mixture
Answer/Explanation:
Yes a party mix is an example of a mixture. Hence, the word party MIX. To be more specific it is a heterogenous mixture because its components are not evenly separated through out the substance.
Which of the elements below has the largest electronegativity? Na, Mg, S, P?
HURRY!!!
Answer:
Electronegativities generally decrease from top to bottom within a group due to the larger atomic size.
Of the main group elements, fluorine has the highest electronegativity (EN= 4.0) and cesium the lowest (EN=0.79).
Explanation:
Sulfur has the largest electronegative element. Therefore, option C is correct.
What is electronegativity?Electronegativity is a measure of an atom's ability to attract electrons toward itself in a covalent bond, and it generally increases as you move across a period from left to right in the periodic table.
The type of bond that exists between atoms will depend on the electronegativity of the system.
Out of the given elements, S (sulfur) has the largest electronegativity. Sulfur has an electronegativity value of 2.58 on the Pauling scale, while Na (sodium) has an electronegativity value of 0.93, Mg (magnesium) has an electronegativity value of 1.31, and P (phosphorus) has an electronegativity value of 2.19. Therefore, option C is correct.
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Please help me vote you brainiest
Answer:
If two forces act on an object in the same direction, the net force is equal to the sum of the two forces. This always results in a stronger force than either of the individual forces alone
Which body parts don’t fossilize because animals tend to consume them?
A.
bones
B.
muscles
C.
shells
D.
teeth
Answer:
b. muscles is the answer
Explanation:
muscles is a meat, animals eat meat
BRAINLIEST AWARD PLZ HELP :)
Answer:
babe give us our last brainliest lol
Explanation:
science stuff
__ has mass and takes up ____ i need help pls
Answer:
Matter has mass and takes up space.
Explanation:
Matter is everything around you. Atoms and compounds are all made of very small parts of matter.
Mass is a measure of the amount of matter in an object.
What is the empirical formula of a molecule containing 24% carbon (C), 6%
hydrogen (H), and 70% chlorine (CI)?
O A. CH3C1
B. C2H6Cl2
C. C24H6C170
O D. CHCI
SUBMIT
Answer:
Empirical formula is CH₃Cl.
Explanation:
Given data:
Percentage of hydrogen = 6%
Percentage of carbon = 24%
Percentage of chlorine= 70%
Empirical formula = ?
Solution:
Number of gram atoms of H = 6/ 1 = 6
Number of gram atoms of C = 24 /12= 2
Number of gram atoms of Cl = 70/ 35.45 = 2
Atomic ratio:
C : H : Cl
2/2 : 6/2 : 2/2
1 : 3 : 1
C : H : Cl = 1 : 3 : 1
Empirical formula is CH₃Cl.
Answer:
CH3Cl
Explanation:
a-p-e-x