Answer:
milk sugar, salts, substances with fatlike properties, and gases
1. Make a prediction - Do you think water molecules speed up or slow down
when they are heated? *
Answer:
disminuyne
Explanation:
Need help fast plzzz!!! Please help.
Answer:
1. 0.5333333m (Calculator Soup Work Calculator)
2.
9. 29.1666666667% efficient
10. 44.5% efficient
Explanation:
will do other answers later
Hydrogen is the first element on
the periodic table. How many
protons does it have?
A. one
B. 118
C. it varies
what is 15 /2.343*233+2341
if you are reading this you like the person you are sitting beside or just beside or will sit beside next.
Answer:
3832.67
Explanation:
The correct coefficients needed to balance the following reaction are:
___ PbI2 + ___ ZnS → ___ PbS + ___ZnI2
a) 1, 2, 2, 1
b) 1, 1, 1, 1
c) 1, 1, 2, 2
d) 2, 1, 1, 2
True or False vacuoles direct cell activities by sending instructions to different parts of an animal cell
Answer:
False
Explanation:
The nucleus controls the cells activities
Bread is made with which fungus?
morel
yeast
mold
chytrid
Answer:
yeast
Explanation:
sorry if incorrect
Which statement correctly compares the sun and planets? A. Planets have an atmosphere; the sun does not. B. Planets gives off energy; the sun does not. C. Planets orbit the sun; the sun is at the center of the solar system. D. Planets are all made of solid materials; the sun is made of gases.
Answer:
c
Explanation:
because the sun is at the center of the universe the planet orbit the sun its basically a simple answer so if you need more help im right here
The sun and the planets are part of the solar system. The sun is in the center of the system, and the planets revolve around it. Thus, option C is correct.
What is the solar system?A solar system is a part of the Milky Way galaxy that includes the planets, stars, sun, moon, asteroids, etc. The Sun is the star that is fixed at the center of the system.
The planets are not fixed and revolve in orbit around the sun and rotate on their axis. The sun and planets are made up of gases and have different atmospheres.
Therefore, option C. sun is at the center around which the planets revolve.
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An object's mass is a measure of how much matter makes it up. An object's weight is a measure of the gravitational force that acts
on it. An object's mass is always its weight
OA
equal to
ОВ.
proportional to
C.
double
OD
half of
Answer:
its a
Explanation:
Answer:
c
Explanation:
Vectors are arrows that tell us two things about force...WEIGHT and DIRECTION
True
False
Why does everyone keep saying I should call Uraraka “red cheeks” instead of “pink cheeks” (=_=)
i dont know man they're weird
What is a unwanted change in the environment caused by substances or from of energy??
Answer:
pollution I think
Explanation:
What is a primary difference between bacteria that are
in the kingdom Archaea and other bacteria?
Answer:Both atractive and repulsie
Explanation:
In your own words, describe the process of convection.
Answer:
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat
Explanation:
<3
Answer:
Convection when heat travels through metal or appliances.
Explanation:
Which of the following pairs of elements is most likely to form an ionic bond?
A.
nitrogen and oxygen
B.
lithium and chlorine
C.
phosphorus and chlorine
D.
selenium and bromine
Answer:
B.
lithium and chlorine
Explanation:
Ionic bonds are typically formed between a metal and nonmetal. Lithium is an alkali metal in group one and chlorine is a halogen from group seven. They will bond to form the salt, lithium chloride.
Which of the following is a standardized and convenient unit to use for comparing distances across the Solar System?
A
the distance from the Sun to Earth
B. the distance light travels in one year
C the distance Mercury travels in one year
D. the distance Earth travels around the Sun
Which describes the substances that form covalent bonds?
A. a metal and a metalloid
B. a metal and a nonmetal
C. two nonmetals
D. two metals
To slow down the flow of electrons in a circuit is called
Answer: Resistance slows down the flow of charge in a circuit. The unit of resistance is the ohm (Ω) which is defined as a volt per ampere of current.
Explanation:
What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the Zebra mussel
Answer:
When the Zebra arrived they ate all the food so the Unionid mussels declined as they died from the lack of food. Causing the Zebra Zebra numbers to increase and Unionid numbers to decline.
What is a function of the backbone in animals
Answer:
The major function of the vertebral column is protection of the spinal cord; it also provides stiffening for the body and attachment for the pectoral and pelvic girdles and many muscles. In humans an additional function is to transmit body weight in walking and standing.
Explanation:
MARK ME BRAINLIEST :)
Isotopes are atoms of the same element that have different O principal chemical properties, masses. O numbers of protons, O numbers of electrons.
Answer:
Different atomic mass, number of neutrons
Explanation:
Isotopes refer to atoms of the same element, with same atomic number, number of protons & electrons. However, they have different atomic mass, because of different number of neutrons.
When a logger cuts down a
tree, what type of change is
happening to the tree?
A. Physical change
B. Chemical change
'C. Mixture change
Answer:
A
Explanation:
Answer:
A
Explanation:
The original chemical structure of the tree is not changing, therefore it is not a chemical change, and it is definetely not a mixture change, its a physical change.
Dylan puts two magnetic toy trains very close to each other on a track. What will happen next, and why?
huryyyyyy plsssssssssssssssssss
Answer:
B.
Explanation:
bc it goes from having the potential to move to moving sorry if im wrong tho
The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative abundance and atomic masses are 69.2% for a mass of 62.93 amu and 30.8% for a mass of 64.93amu. Calculate the average atomic mass of copper.
Answer:
63.546
Explanation:
The Average atomic mass is calculated using the formula:
sum of the product of the atomic masses and their relative abundances all divided by 100 or total abundance
Which of the following are examples of a physical property of matter? Select all that apply.
The matter is made up of various types of particles which have a physical state and have inertia.
What are the physical property of matter? Select all that apply.1. Matter is colour less. (false)
2. Matter is hard in structure. (true)
3. Matter is soluble. (true)
4. Matter can not conduct electricity. (false)
5. Matter has boiling point but not melting point. (false)
6. Matter has both boiling and melting point. (true)
7. Matter has not the density. (false)
8. Matter has the malleability. (true)
Matter is made up of different kinds of particles which can occupy space and they have some mass. All the matters are made up of the elements. The elements contain specific physical and chemical properties. the matter can not be broken by any ordinary chemical reaction.
So we can conclude that the matter is made up of various types of particles which have a physical state and have inertia.
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write out the products that would be created during this neutralization reaction H2SO4 + Cu(OH)2
Answer:
H2SO4+CU(OH)2 = CUSO4+2H2O
The general neutralization reaction between an acid and a base takes the form: acid + base → salt + water.
If you have some acid HA neutralizing some base BOH, the salt would be an ionic compound composed of the conjugate acid of BOH (i.e., B⁺) and the conjugate base of HA (i.e., A⁻).
Applied here, H2SO4 and Cu(OH)2 would react to form a salt CuSO4 (the Cu²⁺ ions coming from the copper(II) hydroxide and the SO4²⁻ ions coming from the sulfuric acid) and H2O.
Thus, the products of this neutralization reaction would be copper(II) sulfate (CuSO₄) and water (H₂O).
The balanced equation for this reaction would accordingly be:
H₂SO₄ + Cu(OH)₂ → CuSO₄ + 2H₂O.
Which of these can be used as an inert electrode?
copper
platinum
silver
zinc
Answer:
I believe it is platinum
Explanation:
I think it is, haha
Answer:
zinc
Explanation:
kwkejnrkewnrkwe
Can you please help me !!
Answer:
Explanation:
A) O2 (non polar covalent)
B) HF (polar covalent)
C) NaCl (because its ionic)
im not 100% sure hope it helps
What is the volume of 55 grams of carbon dioxide at STP
A. 2.45 L
B. 28 L
C. 1.25 L
D. 12.5L
Answer:
A. 2.45 L - Answer my answers is right.