Answers
Related Questions
plz help meh, I think there is trick question!!!
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Answer:
Explanation:
Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (all atoms with six protons are carbon atoms), the number of protons in an atom is called the atomic number. In contrast, the number of neutrons for a given element can vary.
I hope I helped you!
Answer:
Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number. In contrast, the number of neutrons for a given element can vary.
Explanation:
So i would say C
What do you think of the word matter?
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Answer:
matter is any substance that has mass and takes up space by having volume. ...
google takes its name from a conversion prefix. What is it and how big is it
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Answer:
Giga, 1x10⁹.
Explanation:
Hello,
In this case, if we chew over Google's name, we can see that it suggests the word Giga which in conversion units context accounts for the Giga prefix (G) which has a value of 1x10⁹.
For instance 1 meter in gigameters is:
[tex]1m*\frac{1Gm}{1x10^9m}=1x10^{-9}Gm[/tex]
Which suggests that it is a huge unit and it makes sense considering the raft of information Google handles.
Regards.
How can a substance change from one state of matter to another?
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Answer:
heated or cooled
Explanation:
Matter can change from one state to another if heated or cooled.
Answer:
Many things can change a substance from one state to another. These things include pressure, temperature, frequency, and many more.
The MSDS for chloroform indicates that it is a clear liquid that has a pleasant smell and a substantial vapor pressure. Poeple should avoid inhailing its vapors, and it is sensitive to light .Malik needs 10 mls of chloroform for an expiriment.According to this information , how should hge safely pour the chloroform?
Answers
Answer:
C is the answer
Explanation:
Answer:
He should locate the chloroform stored in a dark container in chemical storage and should take it to the fume hood to pour.
Explanation:
A car drives with constant speed of 112km/h. How long will it take to travel to distance of 56 kilometers?
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112 km is travelled by car in 60 minutes
1 km is travelled by car in 60/112 minutes
56 km is travelled by car in 60/112*56 = 30 minutes = 0.5 hours
Explanation:
Zn + 2HCl ---> ZnCl2 + H2 1. Is the equation above balanced or unbalanced? How do you know? (Hint: How many atoms of each type of element are there?)
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Answer:Balance. Acid+metal->salt+hydrogen.1 molecule od zinc contains 1 zinc atom.2 molecule of HCl contains 2 atoms hydrogen and 2 chlorine.1 molecule of Zncl2 contain one atom of zinc and two atom of chlorine.And two 2 atoms of hydrogen.
Explanation:
tony ate 3/4 of the pizza. mike ate 7/16 of the pizza. how much more did tony eat than mike
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Answer:
5/16
Explanation:
make them have a common denominator
3/4 needs to be times by 4
so it's
12/16 then you minus 7/16
the answer is
5/16
Answer: 5/16
Explanation:
Multiply tonys 3/4 by 4 in order to get the same denominator as mike's 7/16. You should get 12/16 since 4x3=12, and now you can subtract the smaller fraction 7/16 from the bigger one 12/16, you should get a difference of 5/16.
Convert the following masses into kilograms:
(a) 2,300,000 grams
(b) 5,000 milligrams
(c) 23,000 micrograms
(d) 0.155 megagrams
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Answer:
(a): 2,300 kilograms
(b): 0.005 kilograms
(c): 2.3 × 10^-5 kilograms
(d): 155 kilograms
Explanation:
Formulas:
(a); divide the mass value by 1000
(b); divide the mass value by 1e+6
(c); divide the mass value by 1e+9
(d); multiply the mass value by 1000
Scientist at the CDC (Center for Disease Control) in Atlanta, GA are currently developing and testing new treatments and vaccines for the coronavirus. What kind of research are they conducting?
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Answer:
Applied research
Explanation:
The process of developing a new vaccine involves the use of known scientific theories to address specific problems. Here, the outcome of several basic research are put into use to arrive at a targeted outcome. This outcome/product can be continuously modified (if it shows early promise) until the desired effect is achieved and if no "promise" is discovered at critical points of this research, work on this theory (for this research) is suspended another theory is pursued.
This process (described above) in which scientists continuously develop new treatments and/or vaccines and continuously subject it to testing until the desired effect is achieved can be referred to as Applied research.
Which of the following is a producer? O mouse cactus O snake O goose
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Answer:
cactus
Explanation:
Its a plant so it makes it own food
Do you find the cell membrane in Animal Cells, Plant Cells or Both?
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Answer:Both have cell membranes
both. Both plants and animals have cell membranes
Which of the following statements is true? a. A technological society has no impact on the environment. b. A technological society has a completely positive impact on the environment. c. A technological society has both a positive and negative impact on the environment d. A technological society has a completely negative impact on the environment. Please select the best answer from the choices provided A B C D
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Answer:
The invention of the wheel had an important impact on farming.
Answer:
C
Explanation:
Just took the test
Which of these elements in GroupA on the periodic table has the largest atomic radius?
A.Cesium
B.Rubidium
C.Potassium
D.Sodium
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Answer:
A i think is the answer
4. m stands for....
a) millimeter
C) centimeter
b) meter
d) Liter
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Answer:
meter
Explanation:
My stands for Millimeter
L stands for Liter
Cm stands for centimeter
Which would most likely be done while designing a solution?
researching the current uses of a fuel type
sketching a diagram of a new medical device
reporting the results of using a prototype
redesigning a model airplane that did not fly well
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Answer:
sketching a diagram of a new medical device (b)
Explanation:
its on edge technical design not d i got that one wrong
Answer:
the answer is b
Explanation: i took the test edge 2021
Baking powder is example of???
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Concrete is made of an uneven mixture of gravel, sand, and water. It is _____. homogenous heterogeneous a solution a solute
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heterogeneous, because it does not have a uniform texture
hope That helps
Answer:
Heterogenous, I just took the quiz
Explanation:
given: f(x) 3x-1. g(x) 2x^2-3
=(3x-1) + (2x^2-3)
= 3x-1 + 2x^2-3
=5x^2-4
can someone tell me if its correct, im not sure if i am ;-;
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f(x) = 3x - 1 = 0
f(x) = x = 1/3
By putting the value of x in g(x), we get
g(x) = 2(1/3)^2 - 3
g(x) = 2(1/9) - 3
g(x) = 2/9 - 3
g(x) = -25/9
Answer:g(x) = -25/9
Answer:
[tex]2x^{2} + 3x - 4[/tex]
Explanation:
(f + g)(x)=(3x-1)+(2x^2-3)
Simplify:
2x^2+3x−4
The number of protons in an atom is also known as the atomic what?
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How many neutrons in beryllium
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Answer:
There are 5 neutrons in beryllium
4 electrons
Atomic number is 4
Hope this helps
Question 2 of 10
Which of these is not an example of how engineering has affected society?
O A. The seven-mile bridge that spans across the Gulf of Mexico to
connect two cities of the Florida Keys
O B. The Hoover Dam, which was built to prevent floods, provide
irrigation, and produce hydroelectric power
O c. The use of piers and beams used to build a strong foundation for
a house
D. Our understanding of how cancer cells grow and spread
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Our understanding of how cancer cells grow and spread
Answer:
D. Our understanding of how cancer cells grow and spread
measure the mass of 1 gram of sand
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Answer:
Mass: 1 gram
Explanation:
This question doesn't make sense because the mass would be 1 gram.
Grams are a unit of mass.
How is crystallization used in the pharmaceutical industry (simple answer please)
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Answer:
CRYSTALLIZATION :IMPORTANT IN THE PHARMACEUTICAL INDUSTRY.IT IS A SEPARATION PROCESS FOR INTERMEDIATE AND A FINAL STEP IN PHARMACEUTICAL INGREDIENTS.A BRAINLIEST PLEEAAAASE(crushed crystals)
Read the claim.
Breakfast is an important meal. It jump starts the body’s process of using calories to break down food. Appetite can decrease with age, but going too long without eating causes metabolism to slow down. Current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. Who might benefit from this claim?
A.people who have a fast metabolism
B.stores that sell exercise equipment
C.people who take vitamin supplements
D.grocery stores that sell legumes
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What increases acidity more, nitrile group or chloride group?
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Answer:
The nitrile group
Explanation:
The nitrile group contains the C≡N bond. It should be recalled that triple bond is highly electronegative and withdraws electrons from the C-H bond more effectively than the halogen atom.
The higher effectiveness of the C≡N bond at electron withdrawal greatly reduces the electron density of the C-H bond thereby making the hydrogen atom of the bond highly labile
What is the volume of a 200 gram sample of gold if its density is known to be 20.5 g/mL?
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Answer:
The answer is 9.76 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\ [/tex]
From the question
mass of gold = 200 g
density = 20.5 g/mL
It's volume is
[tex]volume = \frac{200}{20.5} \\ = 9.7560975609...[/tex]
We have the final answer as
9.76 mLHope this helps you
How do scientists determine the number of neutrons in an isotope of an atom? O They find the number of protons. 0 They add the number of electrons and protons. They divide the atomic mass by two. They subtract the atomic number from the atomic mass.
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Answer:
The three naturally-occurring isotopes of hydrogen. The fact that each isotope has one proton makes them all variants of hydrogen: the identity of the isotope is given by the number of protons and neutrons. From left to right, the isotopes are protium (1H) with zero neutrons, deuterium (2H) with one neutron, and tritium (3H) with two neutrons.
The term isotope is formed from the Greek roots isos (ἴσος "equal") and topos (τόπος "place"), meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.[2] It was coined by a Scottish doctor and writer Margaret Todd in 1913 in a suggestion to chemist Frederick Soddy.
The number of protons within the atom's nucleus is called atomic number and is equal to the number of electrons in the neutral (non-ionized) atom. Each atomic number identifies a specific element, but not the isotope; an atom of a given element may have a wide range in its number of neutrons. The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given element has a different mass number.
For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively. The atomic number of carbon is 6, which means that every carbon atom has 6 protons, so that the neutron numbers of these isotopes are 6, 7, and 8 respectively.
Determine the correct number of sig figs in: 1650
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Answer:
3 sig figs
Explanation:
what is an oxidation reaction?
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Fe + O2 —(H2O)—> Fe2O3