Answer:
Air from the trumpet moved it
Explanation:
how many of protien consumed by humans around the world is fish?
a) 5 percent
b)20percent
c)4p percent
d)50 percent
The answer would be 20% (B)
If Beryllium has a mass number of 7 and atomic number of 4, how many protons does it have?
Answer:
4
Explanation:
Answer:
4
Explanation:
So the atomic number is still the proton number and it is always smaller than the atomic mass so the proton number is 4.
HOPE IT HELPED
Due in 5 min PLEAZE HELP!!
Answer:
CO
Explanation:
Co, Cr, and Cu are elements. Elements cannot be broken down by a chemical change, but compounds can. and CO is a compound
Answer:
co
Explanation:
Do all systems have Inputs and Outputs? I’m sorry I’m really dumb
The ____________________ metals are all of the elements located in groups 3-12 on the Periodic Table.
Answer:
Transition Metals are all of the elements kn group 3-12.
Someone help me with this plz due in 10 minutes ILl give brainly!!!
Answer:
which one do u want help with?
Explanation:
What word is used to describe the electrodes used in electrolysis that do not react?
Answer:
Electrodes are the rods that carry the electric current to and from the electrolyte. These rods are usually inert, as in they do not react- usually graphite or platinum. The positive electrode is called the anode and the negative electrode is called the cathode.
Explanation:
plz mark me as brainiest
Electrodes in electrolysis that do not react are called inert electrodes.
Electrodes are conductors which carry current in and out of the electrolyte.
The negative electrode is the anode and the positive electrode is the cathode.
Inert electrodes do not react.
Electrodes in electrolysis that do not react are called inert electrodes.
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Which group has the highest ionization energies? Explain why.
Answer:
nobel elements (gr. 18) because they are fully stable due to octet complete--------------------------------------------------
first proposed that Earth and the other planets orbit the sun.
OA.) Hubble
OB.) Galileo
OC.) Copernicus
OD.) Kepler
ANSWER QUICK PLEASEE
which of the following CANNOT be classified as a substance? A. table salt B. air C. nitrogen D. gold
Answer:
C. Nitrogen
Explanation:
All of the other options are mixtures making them substances, but nitrogen is an element. (while gold is an element, there are often times that gold is mixed with other elements, creating a substance)
Look at the map of temperature versus latitude
globe. Why are the bands not straight
around
the
across!
The bands not straight around since location is not a factor in measuring temperature. Temperature seems to be not the same as the power of a thermodynamic process.
What is temperature?Temperature is a unit used to describe hotness or coldness. It may be stated in terms of any number of arbitrary scales and shows the direction in which heat energy would naturally flow, i.e., from a hotter body to a region of lower temperature (one at a lower temperature).
Temperature seems to be not the same as the power of a thermodynamic process; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a substantially higher temperature. The bands not straight around since location is not a factor in measuring temperature.
Therefore, the bands not straight around since location is not a factor in measuring temperature.
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Explain whether the formula CuO can be used to represent both Copper oxide(1) and Copper(2) Oxide
Answer:
See explanation
Explanation:
Oxide has a 2- charge.
Copper (I) Oxide = Cu2O
Copper (II) Oxide = CuO
The formula CuO can not be used to represent both copper I oxide and copper II oxide.
The formula of an ionic compound takes into account the oxidation state and valency of the the metal cation which is usually shown as a Roman numeral in the name of the compound.
For the compound copper I oxide, the correct representation of the compound is Cu2O. This shows that oxygen has a valency of 2 while copper has a valency of 1 in the compound.
The correct representation of copper II oxide is CuO. In the compound, both copper and oxygen have valency of 2.
Learn more: https://brainly.com/question/13439771
What is the wavelength, in meters, of yellow light with a frequency of 5.10 x 1014 Hz?
Answer:
5.88 × 10⁻⁷ m
Explanation:
Speed of Light = Wavelength times Frequency
c = λν
Step 1: Define
c = 3.0 × 10⁸ m/s
ν = 5.10 × 10¹⁴ Hz
λ = unknown
Step 2: Solve for λ
3.0 × 10⁸ m/s = 5.10 × 10¹⁴ Hz · λ
λ = 5.88235 × 10⁻⁷ m
Step 3: Simplify
We are given 3 sig figs.
5.88235 × 10⁻⁷ m ≈ 5.88 × 10⁻⁷ m
Write the chemical formula for Calcium Dichromate
Ca Cr2O7^2 -
2 2
2 2
1 1
=CaCr2O7^2 -
Is this right? Or does the second part have a bracket
Answer:
Its right
Explanation:
The chemical formula of calcium dichromate is CaCr207
Pleaseeee help meeeee
Answer:You have it right the answer is c!
Explanation:
Answer:
c ........................!
What is the buoyancy force on a 15 g object which displaces 60 mL of water? (Remember to change mL of water to grams and grams to kg)
25 N
0.59 N
900 N
0.25 N
Answer:
0.25
Explanation:
Answer:
.59
Explanation:
Help PLEASE HELP PLEASE
Answer:
b. k+
Explanation:
if you were conducting an experiment to see whether eating candy makes gerbils fat, what variable might you change?
A:The number of gerbils you feed incorrect answer
B:The amount of candy the gerbils eat incorrect answer
C:The amount of water the gerbils drink incorrect answer
D:The body mass of the gerbils incorrect answer
Answer:
B
Explanation:
the less candy will be the smallest gerbil and the most candy will be the fatest
Answer:
A) The number of gerbils you feed
Explanation:
If you wanted to test whether eating candy made gerbils fat you would need to fluctuate the amount of candy each group receives to observe whether there was any differnce in weight
a man is 72 inches tall, what is his height in meters? round to three significant figures.
Answer:
1.829 meters is the answer
Explanation:
to get dry ice to the triple point
PLEASE HELP !!
Which is not a chemical element needed to build sugars?
Answer:
Nitrogen
Explanation:
Write two uses of sublimation process?
Answer:
Explanation:
Practical Applications of Sublimation
Sublimation and erosion cause ablation, a process that wears down glaciers. Sublimation of iodine may be used to reveal latent fingerprints on paper. Sublimation is used to purify compounds. ... Because dry ice sublimates so readily, the compound is used to produce fog effects.
Which is a common psychological side effect of dementia?
A.optimism
B. loss of brain functionality
C. emotional distress
D.loss of coordination
Answer:
D is your Answer just did the quiz
( date on bottom when I did the quiz)
Explanation:
3 - 24 - 2021
which factor affects an objects weight but not its mass?
A. Volume
B.Magnetism
C. Gravity
D Conductivity
Answer:
Gravity
Explanation:
Gravity is the pull of an object to another object like a human to the Earth. This is weight.
Answer:
C. Gravity
Explanation:
Just Took The Test And Got A Perfect Score. ;)
PLS HELP What is the name of the value located in the top right of an element?
Answer:
It's the elements atomic mass and the number of neutrons and protons in an atom.
Explanation:
Plz help! The best answer will be marked as brainliest!
Make a funny sentence of alloys for Magnesium
Here is an example for Mercury, it HAS to for Magnesium
“I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”
Answer:I love to travel however I do erode aluminum so we won't be taking off on undertakings in planes at any point in the near future
Explanation:
Help me. I need help on these questions and i don’t understand
Help me ASAP !!!!!!!!!!!
Answer:
What do you need help on
Explanation:
water is a compound with a chemical formula h2o. compare a physical change involving water with a chemical change involving water. how do the changes differ?
Answer:
Chemical would be water splitting into just hydrogen and oxygen. Where as a physical change would be if it turned to ice.
Explanation:
How are hypotheses different from theories?
Answer:
Explanation:
This is the Difference Between a Hypothesis and a Theory. In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.
