Answer:
Breathe. Breathing is the number one thing every human does, and their bodies need it. Think about going in a pool in 6 feet. You realize that its kinda hard to breathe and it feels like something is holding your chest down really hard. Water pressure and air pressure can affect the breathing habits of a human and can also cause suffocation to the lungs.
Explanation:
please give brainlyest
Make a claim about whether air is matter and whether light is matter. Support your claims with evidence and explain your reasoning.
Answer: air is matter, it has mass and it takes up space
What is the melting point of the above substance?
wave has a frequency of 5hz and a wavelength of 25 m/s.
what is the speed of the wave
Answer:
125m/s
Explanation:
speed= wavelength×frequency
= 25×5
=125
The speed of the wave will be 125 m/s.
What is speed?The magnitude of an object's rate of change of position with time, or the magnitude of change of position for each unit of time, is its speed; it can be considered as a scalar quantity.
Speed = wavelength × frequency
Calculation of speed is shown below:
It is given that wavelength = 25 m/s, frequency = 5 hz.
Speed can be calculated by using the formula:
Speed = wavelength × frequency
speed = 25m/s × 5 hz
speed = 125 m/s
To know more about speed.
https://brainly.com/question/7359669.
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Match each element with the element that is most similar to it. If you don’t know the answer, use this periodic table to help you make your best guess.
Drag the tiles to the correct boxes to complete the pairs...
Answer:
Lithium - Potassium
Carbon - Silicon
Fluorine - Bromine
Oxygen - Sulfur
Explanation:
I hope this helps!! :3
The change of matter, solid, liquid and gas is called a_________.
Answer:
This would be a phase change
Explanation:
Since the diffrent phases solid,liquid,gas are changing to other phases.
Sorry for the bad explanation.
Convert the following: 100 hg(hectograms) to g(grams)
a. 10,000 g
b. 10 g
c. 1 g
d. 100 g
Answer:
A
Explanation:
10,000g
just multiply the amount of hectograms by 100 to get grams
Which of the following are an example of a polysaccharide?
A.starch
B.chitin
C.cellulose
D.sucrose
Examples include storage polysaccharides such as starch, glycogen and galactogen and structural polysaccharides such as cellulose and chitin. Here's the answer, but I think it's A
is the cause of rapid oxidation explosion
Oxygen and silicon makes up what percentage of the Earth crust.
A) 57% B) 98.5% C) 75% D) 50%
answer
the answer is C
explanation
this is because the oxygen makes up 46.1%of the earth's surface while silcon is 28.5% and the question says "what makes up" which means you should add them and it becomes 74.6% which Is approximately 75%
Green light has a frequency of 6.01 x 1024 Hz. What is the wavelength?
Answer:
λ= 4.99 * 10^-17
Explanation:
C= F * λ
F= frequency(Hz)
λ= wavelength(m)
C= 3.0 * 10^8
F= 6.01 * 10^24
λ= ?
3.0 * 10^8= (6.01 * 10^24) λ
***Simplify
λ= 4.99 * 10^-17
In a chemical formula what is used to indicate the number of atoms of each element
Answer:
molecular number
Explanation:
because it shows exact numbers
A compound is always made up of the same ____ in the same proportions.
Answer:
elements
Explanation:
A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds
How is particle motion related to thermal equilibrium?
Answer:
With billions of moving particles colliding into each other, an area of high energy will slowly transfer across the material until thermal equilibrium is reached (the temperature is the same across the material).
help me out pls (image attached)
How cations can become neutral atoms?
Answer:
By gaining elections
Explanation:
Cations are formed when neutral atoms loss electrons and when they gain back the lost electrons the charges are neutralized.
Eg. Cu=Cu2+ + 2é
Cu2+ + 2é=Cu
The amount of matter inside an object is called what?
You pour some juice from a short, wide glass into a tall, narrow glass. What happens to the volume of the juice? Explain your reasoning.
Answer: the volume increases
Explanation: It increasses because the volume is how tall it is
Which is more scientific, what is the air made out of? or why is there air?
Answer:
why is there air
Explanation:
it sounds more smarter and sounds like something someone would want to know
I WILL GIVE YOU BRAINLIEST!!!
Answer:
The second option
Answer:
Intent to cause harm
Can someone help me find the 5 digits numbers in here?
Answer:
20322
Explanation:
What is the density of a rectangle solid with dimensions
of 15 cm x 25 cm x 5 cm and has a mass of 3000 g?
Answer:
5625000gm/cm^3
Explanation:
volume=w*h*l=25*15*5=1875cm^3
density=mass*volume
=1875*3000
=5625000gm/cm^3
The least massive of all the alkaline earth metals. Who
am I?
Chased on atomic mass, the least massive of the alkaline earth metals is Beryllium.
What are alkaline earth metals?Alkaline earth metals are the metals found in group 2 of the periodic table of elements.
The alkaline earth metals include:
Beryllium Magnesium CalciumThe least massive is the first element in the group.
Therefore, the least massive of the alkaline earth metals is Beryllium.
Learn more about alkaline earth metals at: https://brainly.com/question/1085966
Solution ,colloid ,or suspension
Answer:
colloid
Explanation:
i think she making meth in her basement
Ecology is defunded as the environment study of
Answer:
sicoligy
Explanation:
this answer was wrong sorry
An atom contains 22 protons and 26 neutrons. What is its atomic number?
Answer:
the atomic number is 22
Explanation:
titanium is 22 on the periodic table. the amount of protons is the same as the atomic number
Answer:
22 :)
Explanation:
Which of the following will Float on pure water?
оа
Ob
A substance with a mass of 1.33 g. and a volume of 1.38 ml.
A substance with a mass of 534.23 grams and a volume of 522.3 mL
A substance with a volume of 436.2 mL and a mass of 4180.23 g.
A substance with a volume of 3.35 mL and a mass of 22.64 g.
ос
Od
Answer:
ob
Explanation:
becoz when volume increases density decreases.
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Travis is warming up before basketball practice. Which of these activities would provide the best dynamic stretch to prepare him for sprinting?
Forward bends
Arm rotations
Neck extensions
Leg swings
Answer:
Leg swings sounds good but not to sure
Explanation:
I mean in order to play basketball gotta warm up your legs
Answer: Leg swings
Explanation: Leg swings would be best for preparing to sprint because you will have to move you legs very quickly, and leg swings would be a good warm up without tiring yourself out.
Which describes the letter that belongs where the question mark is?
Answer:
C
Explanation:
Took the test
which can occur in a physical changen?
Predict the charge on the monatomic ions formed from the following atoms in binary ionic compounds:
(a) I
(b) Sr
(c) K
(d) N
(e) S
(f) In
