Answer:
none of the above answers
Matter unit review? Chemistry
10 grade please help meeeeeeeeeee
How many bonds can a carbon atom form?
A. 3
O B. 4
C. 2.
O D. 1
Answer:
B)4
Explanation:
h = 3.0 a + 28.2
A pediatrician uses the model above to estimate the height h of a girl, in inches, in terms of the girl's age a, in years. Based on the model, what is the estimated height of a 2-year-old girl?
Answer:
h = 34.2 in
Explanation:
h = 3.0a + 28.2
h = height of a girl.
a = age of a girl.
h = 3.0a + 28.2
h = 3.0(2) + 28.2
h = 6 + 28.2
h = 34.2
The estimated height of a 2-year-old girl is 34.2 in.
Hope this helps, thank you :) !!
When you pump a bicycle tire, what is happening to the particles inside the tire?
Answer:
they become more compressed with each other, forming a higher-pressure environment.
Explanation:
:)
When you pump air into the tire, it compresses the air, bringing the molecules in the air closer together.
Explanation:
how we can separate sand and water with the help of evaporation.
Answer:
By filtering
Explanation:
Take one cup of mixture of sand and water , filter using a cotton cloth ,
How can the Swartz process be modified to work for bacteria?
Answer:
https://swartzbiotechnologylab.sites.stanford.edu/research
Explanation:
Why is the top ruler more reliable in measuring length than the bottom ruler?
Answer:
cause the bottom part starts at 0 and the top starts at 12
Explanation:
QUESTION 8.1 POINT
Which volume is equivalent to 0.01 L?
Select the correct answer below:
O 10 dL
10 CL
10 KL
10 mL
Answer:
10 mL
Explanation:
1 L = 10^3 mL
0.01 L x 10^3 mL = 10 mL
Answer:
0.01 L=10ml
SEE the IMAGE FOR SOLUTION
The formula of calcium chloride is CaCl2, what do those letters and numbers tell you about the compound calcium chloride?
Answer:
It is a compound made up of one Calclum atom and 2 Chloride atoms.
It comes from a synthesis based reaction:
Ca + Cl = CaCL2
The letters you see are the abbreviations of the elements taken from the periodic table of elements.
Explanation:
The formula of calcium chloride is CaCl2, the letters are the symbolic form of chemical compound and numbers are the total number of moles of the chemical compound.
What is a mole?A mole is the single or the smallest form of any chemical compound or element and it can be in any member but the value of one mole will always be equal to the 2.303 × 10²³ of the carbon atom.
In CaCl2, the Ca is the symbol of calcium and Cl is the symbol of chlorine and the 2 Witten after Cl is the total number of moles attached with it which is making the whole chemical.
Therefore, formula of calcium chloride is CaCl2, the letters are the symbolic form of chemical compound and numbers are the total number of moles of the chemical compound.
Learn more about mole, here;
https://brainly.com/question/26416088
#SPJ2
what are some potential fire startersfor a wildfire
What is the chemical formula for peracetic acid?
The chemical formula for peracetic acid is C2H4O3. This means that there are 2 atoms of carbon, 4 atoms of hydrogen, and 3 atoms of oxygen in a single molecule.
I think that the answer is C2H4O3.
When salt dissolves completely into water, which term is used to describe the water?
Answer:
A salt that is dissolved in water is called a solute
Once you have dissolved the salt - you have a solution
The water is called the solvent
Explanation:
We have that When salt dissolves completely into water the water is called a Solvent
it is important to not that once the salt compound comes into water it breaks down the molecule apart the Na on one hand and the Cl on the other hand
Once the NaCl is dissolved in to the H_2O it is known as a solute of salt
And when When salt dissolves completely into water the water is called a Solvent
Therefore
When salt dissolves completely into water the water is called a Solvent
For more information on this visit
https://brainly.com/question/1689737?referrer=searchResults
4. What is the main hydrocarbon component of natural gas? A. ethane
B. ethene C. methane
7.The fact that alpha particles cannot travel very far trough body tissues is the main reason that radioactive tracers use to detect diseases in internal organs emit beta particles or gamma rays.
A. true B. false
8.A wax is an ester of a long-chain fatty acid and a long-chain alcohol. A. true
B. false
Answer:
Q.4) C. Methane
Q.7) A. False
Q.8) A. True
The reaction X - Y has a reaction enthalpy of - 64 kJ moJ-1 and an activation energy of 22 kJ moJ^-1. What is the activation energy for the y -> x reaction?
Answer:
?
Explanation:
I'm very sorry I couldn't get you a answer, I haven't learned this in school.
At least not this stuff, my apologies!
Need the ionic formula
Answer:
To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.
Explanation:
If an object at a distance of 6,400 km from the center of the earth weighs 10N, what will be its weight if it is lifted to 12,800 km from the center of the earth? ion:
Answer:
2.5N
Explanation:
since force is inversely proportional to square of the distance apart. that means the ratio of distance apart. so u have 12800×12800÷(6400××6400)=4/1
so the weight will be reduced to 1/4 of 10N
How did you figure out the number of neutrons in each atom?
Answer:
To get number of neutrons, you must have the mass number and atomic number of that atom.
[tex]neutrons = mass \: number - atomic \: number \\ [/tex]
atomic number is number of protons
Which of the following is the correct definition of density?
1. The amount of volume per given mass
2. The amount of space that an object occupies
3. The amount of mass per given volume
4. The amount of matter contained in an object
Answer:
3
Explanation:
The amount of mass per given vol
What is the function of sulphur (IV) oxide in the reaction represented by the following equation? SO 2(aq) + 2H2S(g) -> 35 (s) + 2H 20 (l)
A. Dehydrating agent
B. Oxidising agent
C. Bleaching agent
D. Acid
E. Precipitant
_______is used for measuring mass.
Answer:
physical quantity is used for measuring mass.
have a great day God bless you
Images of the constellation Orion made using a telescope are what A. Myth. B. Science C. Pseudoscience
The Orion constellation which can be seen all around the world is positioned upon its celestial equator and it is among the noticeable and distinctive constellations in the sky. It is thought to be a Greek Mythology named after a hunter.
The Orion Nebula forms from dust, hydrogen as well as other ionized gases.
The tale and myth of Orion have various variations and explanations but one of the most popular ones is that Orion declared himself as the topmost and strongest hunter in the world.
Therefore, we can conclude that the constellation Orion made using a telescope are Myth.
Learn more about Orion Constellation here:
https://brainly.com/question/13387637?referrer=searchResults
plz help!!
fill in the blank
Answer:
0.0325m = 3.25 cm
Explanation:
1m = 10-²cm
Answer:
3.25cm
Explanation:
a centimeter is just 1/100 of a meter
what is soil pollution
Answer:
Soil pollution is defined as the presence of toxic chemicals (pollutants or contaminants) in soil, in high enough concentrations to pose a risk to human health and/or the ecosystem.
What is the chemical formula for glucose?
Answer:
C6 H12 O6
Explanation:
Uejdidjdkeijdked
The chemical formula for glucose is C6H12O6. This means that there are 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen in a single molecule.
Which shows an isomer of the molecule below?
Answer:
The answer is B, in this case.
Explanation:
An isomer is a molecule with the same number of atoms as another compound, but they differ in arrangement of the atoms.
Explaining or interpreting the things you observe based on reasoning from what you already know is called a. observing. c. predicting. b. inferring. d. classifying.
Answer:
B. inferring
Explanation:
Why do you think the mass of the carbon atom shown is 12 atomic mass units (amu)?
Answer:
The mass of Carbon-12 is exactly 12 amu. But, that is not the number that is reported in your periodic table. Carbon as it exists in nature is not all carbon-12. There is some small amount of carbon-13 and even traces of carbon-14 in there. The periodic table reports the average mass of the carbon as it is found in nature, not that of pure carbon-12. The average mass of carbon is slightly heaver than carbon-12, because of the slight amounts of those heaver isotopes of carbon in nature.
Mark me as brainliest please
Explanation:
Diagram 1 shows the species of carnivore animal. (tiger)
What is the use of canine teeth for the animal?
a. Tear food
b. grind food
c. cut food
d. chewing and crushing food
Answer:
a no. because tearing the raw meat will not be easy without the use of the canine teeth
Give the name for this molecule:
Answer:
[tex]thank \: you[/tex]
Drive the integral equation of reaction has rate constant ( 0.01 M/ sec ) and suggest a plotting method to find the rate constant, drive the relation to find half life time.
Answer:
one_falf.
Explanation:
Cuz for a first order rection is half life independent of concentration and constant over time.