Answer:
1436
Explanation:
Why can a container never be half full of air
PLEASE HELP I WILL HIVE YOU BRAINLYEST
what does 2 mean on MgBr2
Answer:
two means Br2
wat else................
Answer:
It means 1Magnesium and 2Bromine
What is a variable? A. Something that must be kept constant in an experiment. B. A value or characteristic that can take different values. C. A statement that explains a phenomena and can be tested. D. An educated guess used in an experiment.
Answer:
The answer is B, a value or characteristic that can take different values
Explanation:
ex.) 1s + 3
s is the variable
Variables are the varying or unchangeable data or factors in an experimental design. It can be defined as a characteristic that can have different values. Thus, option B is correct.
What is the meaning of variables?Variables are experimental characteristics that may be consistent or can be changeable. In an experimental design, the variables are used to analyze the cause and effect.
The variables of an experiment can be dependent, independent, or controlled. The varying factors in an experiment to analyze are called independent variables.
The factors that depend and respond to the effect of the independent variables are called dependent variables. These all values are contrasted to the control group with a fixed value.
Therefore, in option B, the variables are the characteristics with the same or different values.
Learn more about variables here:
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I need help on this please
Answer: C
Explanation: I just did it
The Periodic Table is arranged according to?
the number of electrons that each element has.
the boiling point of the elements.
the reactivity of the elements.
the number of protons each element has.
Answer:
The number of protons each element has.
Explanation:
The periodic table is arranged by atomic number, which is the number of protons in the nucleus of each element.
Answer:
The number of protons each element has.
Explanation:
The number of protons each element has is also known as the atomic number. Elements are arranged from left to right and top to bottom in order of increasing atomic number. The order generally coincides with increasing atomic mass. The rows are called periods.
which family of elements can be found in the area marked B
A) Alkali earth metals
B) Halogens
C) Alkali metals
D) Oxygen family
Answer:
A) Alkaline Earth Metals
Explanation:
Area Marked A would be Alkali Metals
Area Marked B would be Alkaline Earth Metals
Area Marked C would be Transition Metals
Area marked H would be Halogens
the measure of the number of units, such as atoms, molecules, or ions of which all matter is made
Answer:
Particles of matter.
Explanation:
In science, matter can be defined as anything that has mass and occupies space. Therefore, any physical object that is found on planet Earth is typically composed of matter.
Matter are known to be made up of atoms and as a result has the property of existing in states. The three (3) classical states of matter are;
1. Gas: is the state of matter in which the physical substance has no definite shape or volume and as a result fills all available space. Also, gases are easily compressible and can flow. Examples of gases are hydrogen, oxygen, argon, nitrogen etc.
2. Solid: is the state of matter in which the physical substance has a definite shape and fixed volume but not compressible. Examples of solids are pen, screwdriver, television, car etc.
3. Liquid: is the state of matter in which the physical substance can be poured and it takes the shape of its container. Also, liquids generally have a definite volume. Examples of liquids are urine, water, milk, blood etc.
Particles of matter can be defined as the measure of the number of units, such as atoms, molecules, or ions of which all matter is made. These particles of matter are typically tiny, minute or incredibly small and as such can not be seen with the naked eye. Also, the particles of matter are usually in a continual state of motion and are primarily held together by a bond energy.
Additionally, the four (4) properties that are peculiar to matter are: flow, volume, shape and compressibility.
How many liters are in a cubic meter?
100,000
100
10.000
1,000
10
Answer:
The amount of liters in a cubic meter is 1,000 you can find it on google
Explanation:
A cylinder container is filled with air. It’s radius is 6.00cm and it’s height is 3.50cm. What is the volume of air inside? (Use 3.14 for TT) Hurry Guys!!!
Answer:
396 mL
Explanation:
even tho im an expert on brainly i still need help bc science isn't my thing HELP PLS
Where in an equation for photosynthesis does carbon dioxide belong?
on the left side, because it is a product
on the right side, because it is a product
on the right side, because it is a reactant
on the left side, because it is a reactant
Answer:
(d) on the left side ,because it is a reactant.
Answer:
(D) On the left side, because it is a reactant.
What is the density of a substance that has a mass of 90 g and a volume of 18 cm3?
Answer:
Explanation:
DENSITY = MASS( g)/ VOLUME (cm3)
= 90 g / 18 cm3
= 5g/cm3
be attentionto this note , that each 1cm3 =1ml
15. Convert 24 mi/hr to ft/min
What is the reason developed nations are more likely to consider solutions to environmental problems than less developed nations?
Answer:
most developed nations.....
Explanation:
have more people and more resources to fix problems
Describe two ways that electrons form chemical bonds between atoms.
HELPPP PLEASEEEE
Answer: one way is that the atom will share an electron. Sorry i only know 1 way
Explanation: for example, if Cl with 7 electrons wants to bond with Ar, that has a conplete set of 8 electrons, then Ar will share its electron to fill in the space of the missing electron in Cl.
*JUST AN EXAMPLE. IM NOT SAYING CL AND AR DO FORM A BOND.
Answer:
ionic bonds and convalent bond
Explanation:
by taking the electrons it means convalent bond
but if you're borrowing the electrons it mean ionic bond
what equipment is needed to weigh 5.0 grams of zinc?
Is malleability an extensive physical property or an intensive physical property? Explain your answer
Define an endothermic reaction
what is the best way to learn measurements and how to add and multipy them
Answer:
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Explanation:
The volume of water in a transfer pipette is 15.23 ml. A 6.7 mL
volume of water was then transferred out. Considering
significant figures, what is the new volume?
Answer:
The new volume of water in the pipette is 8.53 mL
Explanation:
The given information are;
The initial volume of water in the transfer pipette = 15.23 mL
The amount of water transferred from the pipette = 6.7 mL
The new volume of water in the transfer pipette is given as follows;
New volume of water in the pipette = Initial volume of water in the pipette - Volume of water transferred out
Therefore, we have;
New volume of water in the pipette = 15.23 mL - 6.7 mL = 8.53 mL
The new volume of water in the pipette = 8.53 mL
Answer:
8.5
Explanation:
15.23 - 6.7 = 8.53
The correct amount of sig figs would make the answer 8.5
Write this number in scientific notation: 0.000467
Answer:
467× 10^-6 or 467 × ten to the power of negative six - hope this helps
Which civilization's largest contribution to world astronomy is the invention of astronomical tools?
A. Rome
B. Egypt
C. Babylon
D. Islamic Empires
Answer:
The answer is C.
Explanation:
When you light a match, there is a brief Smell that almost burns your nose
Answer:
Hdhgfrdf
Explanation:
Answer:
This is the smell of the smoke from the fire
Explanation:
What happens to the volume of a liquid when it is poured from a small container into a large container?
Answer:
it stays the same i think
Explanation:
Which best describes the trends in electronegativity on the periodic table?
Electronegativity increases up and to the right.
Electronegativity increases down and to the left.
Electronegativity decreases up and to the left.
Electronegativity decreases down and to the right.
Answer:
A. Electronegativity increases up and to the right.
Explanation:
edge 2021
Electronegativity increases up and to the right. Hence, option A is correct.
What is a periodic table?The periodic table is a tabular arrangement of the chemical elements organized with an increasing atomic number.
Electronegativity is a chemical property that explains the trend of an atom to attract a shared pair of electrons towards itself. As you move from left to right across the periodic table, electronegativity increases, and as you move down the table electronegativity decreases.
Hence, option A is correct.
Learn more about the periodic table here:
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What is the SI unit for mass
Answer:
Kilogram as I said in the comments.
Explanation:
Answer:
kilogram! abbreviation: kg
Explanation:
Which of the following statements is an inference about the picture
The girl broke the vase.
The girl has blonde hair.
The vase is broken.
0 The girls' bow is blue and purple.
Answer:
there is no picture put it in next time
What is the density of a substance that has a mass of 90 g and a volume of 18 cm3?
Answer:
[tex]\boxed{\tt d=5g/cm^3}[/tex]
Explanation:
The density of a substance can be found using the following formula.
[tex]d=\frac{m}{v}[/tex]
where [tex]m[/tex] is the mass and [tex]v[/tex] is the volume.
The mass of this substance is 90 grams and the volume is 18 cubic centimeters.
[tex]m= 90 g \\v= 18 cm^3[/tex]
Substitute the values into the formula.
[tex]d=\frac{90 g}{18 cm^3}[/tex]
Divide 90 grams by 18 cubic centimeters.
[tex]d=5 g/cm^3[/tex]
The density of the substance is 5 grams per cubic centimeter.
1. What is Chemistry?
Answer:
The definition of chemistry is a branch of science that deals with the form of properties of matter and substances or the interaction between individuals.
What is the density of the football?
g/cm3
Calculate the density of the football. Use the formula
D = m/V
where D is the density, m is the mass, and V is the
volume. Record your calculations in Table B of your
Student Guide.
Answer:
0.10
Explanation:
Answer in edge 2020
Answer:
0.10
Explanation:
Just did it
Which civilization linked Venus with motherhood and childbirth, and realized it was one object rather than two?
A. Aztecs
B. Mayans
C. Babylonians
D. Ojibwe
Answer:
The correct options is;
C. Babylonians
Explanation:
The Babylonians showed to have had knowledge that the Evening Star, which is the appearance of the planet Venus in the west, after sunset and the Morning Star which is the bright, white object that can be seen early in the morning in the Eastern sky are one and the same object as indicated in the middle of the seventeenth century BCE compiled Venus tablet of Ammisaduga.
