Answer:
A. water H2O, everything else is a single element C,Fe&Cu
Explanation:
In which way are sugars usually transported throughout a pine tree?
Answer:
through the tree's fibers
Explanation:
the tree's leaves produce sugar that is transported through the tree's fibers. Sap also contributes means of transportation for these sugars.
Which type of reaction has will give brainliest to first correct answer
the general formula of AB + CD → AD + CB?
ОООО
synthesis
decomposition
oxidation
replacement
Answer:
I think it's replacement because the B and D just swap places in the end equation
Answer:
that would be replacment
Explanation:
if you look at the formula the B and D are replaced with each other
synthesis is when it looks like A+B--> AB
decompositions looks like AB--> A+B
and oxydation is when the states of atoms are changed so it would include things like +1, -1 etc
in the universe what can mass be defined as
Answer: Mass is both a property of a physical body and a measure of its resistance to ... Inertial mass is the mass of an object measured by its resistance to acceleration. ... back to the fact that we have not really defined what a force is. ... Then we can measure the mass of any other object in the universe ...
PHOTO ABOVE
Answer Choices:
-Sp
-Sp2
-Sp3
-Sp4
I don’t get this!
Answer:
By just counting sigma bond and lone pair in central atom , one can easily find hybridization.
CO2 sp
SO2 sp2
NH3 sp3
BCl3 sp2
You would like to find the density of an unusually shaped piece of jewelry. Since the piece of jewelry has an irregular shape, you need to use displacement to calculate the volume. In a 300 ml beaker you pour 200 ml. Of water. When you place the piece of jewelry in the beaker, the water level rises to 278 ml. Upon placing the object on the triple beam balance, you find that it weighs 122 grams. Given this information, calculate the density. SHOW YOUR WORK
Volume displaced by jewelry, V = 278 - 200 = 78 ml
Also, 1 ml = 1 cm³
We know, by water displacement method the volume of water displaced by an object it equals to its own volume.
So, volume of jewelry, V = 78 ml = 78 cm³.
Also, weight of jewelry is , w = 122 gm.
Now, we know density is given by :
[tex]d=\dfrac{w}{V}\\\\d=\dfrac{122\ gm}{78\ cm^3}\\\\d=1.56\ gm/ cm^3[/tex]
Hence, this is the required solution.
1.C3H8 + O2 --> H2O + CO2
(5 Points)
Balanced
O Unbalanced
Answer:
Unbalanced
Explanation:
The balanced equation would be:
C3H8 + 5 O2 ---> 4 H2O + 3 CO2
different forms of genes for a single trait
Answer:
different forms of genes for a single trait
Explanation:
There are three main forms of genes that can exist for a single trait and they are:
Dominant alleleRecessive alleleCo-dominant allelesWhat are the different forms of genes for a single traitA dominant allele is a stronger version of a gene that shows up when at least one copy of it is present in an organism's genetic makeup. It hides the effects of the weaker gene. In a person with two different alleles, the one that is more powerful decides how the person looks or behaves.
Recessive allele: A recessive allele is only expressed when there are two of the same recessive alleles present. It is hidden by a strong gene. The recessive allele can only be seen when a person has two copies of it.
Co-dominant alleles: When co-dominant alleles are together, both are shown. In this situation, neither gene is stronger than the other, and both play a role in what an organism looks like. One example of co-dominance is the ABO blood type system. In this system, both the A and B alleles are of equal importance.
Read more about genes here:
https://brainly.com/question/1480756
#SPJ6
I have a rock with the mass of 4.8 and a volume of 2.3.
What is the Density?
Theres no select the answer, i have to type it, and i have no clue. 18 points, brainliest if you can tell me three things along with the density of the rock: 3 more answers of density that are close to the real answer.
+Brainliest, Friend request, 18 points, thanks, and 5 star rating!
Answer:
Density = 2.08695652174
Explanation:
Density = Mass ÷ Volume
2 horizontal and parallel lines are intersected by 2 diagonal lines to form a triangle with exterior angles. The top angle of the triangle is 47 degrees. The exterior angle created by the right side of the triangle and the top horizontal line is x degrees. The bottom left angle of the triangle is y degrees. The exterior angle of the bottom right angle is z degrees above the horizontal line and 63 degrees below. Which statements about the diagram are true? Select three options. x = 63 y = 47 z = 117 x + y = 180 x + z = 180
Answer:
x = 63
z = 117
x + z = 180
Explanation:
edg 2020
Answer:
Explanation:
c
help me with example 2 please
Answer:
you need to calculate it by percentage
Answer:
mass = 20g
volume = 80ml =0.08 dm³
[tex]p = \frac{mass}{volume} [/tex]
[tex]p = \frac{20g}{0.08 \:dm ^{3} } \\ p = 250gdm {}^{ - 3} [/tex]
some help would be very much appreciated !!
Answer:
a = 6 m/s².
Explanation:
If we have the object with mass of 75 kg and force on it is 50 N then according to given statement its acceleration is 3m/s².
When we double the force on same object by keeping the mass constant then the acceleration will also double. It means force will be 100 N and acceleration will be 6 m/s².
But if we we increase the mass then acceleration goes to decrease.
So,
mass = 75 kg
F = 50 N
a = 3m/s² then by double the amount of force,
mass = 75 g
F = 100 n
a = 6 m/s².
This is actually explain the newton second law. This law stated that the acceleration of object is depend upon its mass and force acting on it.
F= m. a
a = F/m
Thus acceleration is directly proportional to the force and inversely proportional to the mass.
A ____ is a region of strong magnetic activity on the photosphere the Sun.
(A) sunspot
(B) flare
(C) Coronal mass ejection
(D) Solar wind
This gas is found in the stratosphere where it helps protect us from UV radiation.
A) ozone.
B) oxygen.
C) nitrogen.
D) carbon dioxide.
Answer:
A.Ozone
Explanation:
Based on your knowledge of chemical equations, what do you know for sure
about this equation?
Pls help I need it I’m dumb but I do need it! *here a pic*
help me please, i have 20 auestions
Answer:
B
Explanation:
PE=m*delta(h)*g
So 0.75*1.5*9.8 equals PE
=11.025 so round up
Mercury, the only metal that is liquid at room temperature, has a density of 13.6g/cm^3. How much does 25cm^3 of mercury weigh?
Answer:
The mercury with volume of 25 cm³ having weight of 340 g.
Explanation:
Given data:
Density of mercury = 13.6 g/cm³
Volume of mercury = 25 cm³
Mass of mercury = ?
Solution:
We will apply density formula.
d = m/v
13.6 g/cm³ = m/ 25 cm³
m = 13.6 g/cm³ × 25 cm³
m = 340 g
The mercury with volume of 25 cm³ having weight of 340 g.
How does the mass of an electron compare to the mass of a proton and a
neutron?
A. The mass of an electron is much greater than the mass of a
proton or a neutron.
B. The mass of an electron is greater than the mass of a proton but
less than the mass of a neutron.
C. The mass of an electron is much less than the mass of a proton or
a neutron.
D. The mass of an electron is greater than the mass of a neutron but
less than the mass of a proton.
Answer:
C. The mass of an electron is much less than the mass of a proton or
a neutron.
Explanation:
When we compare the mass of an electron to that of proton or neutron, the mass of an electron is much less than the mass of a proton or a neutron.
Electrons are negatively charged particles in an atom
Protons are positively charged particles
Neutrons do not carry any charges.
The relative mass of an electron compared to that of a proton is [tex]\frac{1}{1840}[/tex] This is a very small valueElectrons generally have mass of 9.11 x 10⁻³¹kgProtons weigh 1.67 x 10⁻²⁷kgNeutrons weigh 1.68 x 10⁻²⁷kgWe can see that electrons have very small mass and this is why when calculating the mass of an atom, we use the sum of the number of protons and neutrons.
which element has a grater atomic radius ?phosphorus or bismuth?
According to periodic trends, bismuth has the greatest atomic radius.
What are atoms made up of
They're made up of three main parts: protons, neutrons and electrons. Think of the protons and neutrons as together forming a “sun”, or nucleus, at the centre of the system. The electrons orbit this nucleus, like planets. If atoms are impossibly small, these subatomic particles are even more so.
Which property is a chemical property of a substance?
color
melting point
reactivity
boiling point
Answer:
Reactivity! :)
Explanation:
I just took the test! "2.13 Physical and Chemical Changes"
Reactivity is the chemical property of the substance. Therefore, option (C) is correct.
What are the chemical properties?A chemical property can be described as the property that causes a change in the chemical structure of the substance. A chemical property of a substance can be seen in chemical change or reaction in the substance.
A chemical property represents the ability of a substance to combine with other substances or convert into a different product. The chemical composition is the identity of the substance and on changing it the substance turns into a different substance.
A chemical property gets determined when a change occurs in the chemical identity of the substance. The chemical properties such as toxicity, reactivity, enthalpy of formation, the heat of combustion, oxidation states, radioactivity, etc.
The color, melting point, and boiling point are the physical properties of a substance while reactivity is the chemical property.
Learn more about Chemical properties, here:
https://brainly.com/question/1935242
#SPJ2
how many different elements are there in the molecule C8H11NO2?
a. 21
b. 2
c. 4
d.11
Answer:
4
Explanation:
if we are made of stardust, does that make you feel more or less important as an individual (or just the same), and why?
how many nuetrons are in chlorine 37?
Answer:
18
Explanation:
An element with 17 protons will always be chlorine. However an element's mass numbers can vary, which means that it can have different numbers of neutrons. So although chlorine has a mass number of 35 which means it has 18 neutrons.
ents in any compound
fixed ratios
2) Glucose is a 6-carbon sugar made by autotrophs in the process of
photosynthesis. It is a compound formed from three elements, carbon,
hydrogen, and oxygen. The ratio of hydrogen to carbon and oxygen in
glucose is always 2.1.1. What is the correct molecular formula for
glucose?
A) CHO
B) CH1 2012
9 CGH12O6
D) CH₂O₃
Which of the following substances would have a fixed shape and volume at room temperature?
Group of answer choices
aluminum (solid)
rubbing alcohol (liquid)
lemonade (liquid)
helium (gas)
Answer:
aluminum (solid)
Explanation:
Solids have fixed shape and volume at room temperature.
Matter is defined as any substance that has weight and occupies space. There are three main classes of matter;
SolidLiquidGasSolids are particles have strong attractive force between them. This confers a fixed shape and volume on them.
Liquids are mostly fluids that takes up the shape of containers they occupy. The have intermediate strength of attractive forces.
Gases have weak forces and do not have fixed shape or volume. They take up the shape of any container they are introduced into.
The acceleration of a moving object can be calculated by dividing the change in velocity by the change in blank
Answer:
The acceleration of a moving object can be calculated by dividing the change in velocity by the change in TIME
Explanation:
Took the practice
Which atoms have an outer level of electrons that is one electron short of being full? Explain in a paragraph.
Explanation:
Sorry I tried but I do not know the answer but maybe someone else's know and can tell you the answer
The ________variable is the one the experimenter has chosen to investigate
dependent
control
experimental
independent
Which sentence describes a characteristic of matter
Answer: Matter takes up space and has mass
Explanation:
Literally the definition of mass
The process shown in the image above is known as
A. neutron absorption.
B. nuclear fusion.
C. a chain reaction.
D. a redox reaction.
Answer:
C. Chain Reaction
Explanation:
You get different elements from just one by a single reaction.