Answers
Explanation:
gravity if it's incorrect sorry
Answer:
ya it's true
Explanation:
its gravity it is true it's right
Related Questions
How do materials move into and out of a cell?
Answers
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Explanation:
Answer:
Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
What does a weather map use to represent areas of high air pressure?
An "A"
An "H"
An "L"
A "P"
Answers
Answer:
H
Explanation:
As a mixed two substance in a test tube she noticed that the test tube because warm she also noticed gas coming from the test tube based on mias observation what was most likely occurring inside the test tube
Answers
Answer:
A new substance was forming
Explanation:
what type of reactions are the following? ( single displacement, double displacement, synthesis, or decomposition)
4Mn3O4(s) + O2(g) -> 6Mn2O3(s)
Al2O3(aq) + 3C(s) ->3CO(g) + 2Al(l)
Ba(C2H3O2)2(aq) + Na2CO3(aq) -> BaCO3(s) +2NaC2H3O2(aq)
KOH(aq)+HBr(aq) -> KBr(aq)+H2O(l)
Answers
Answer:
1. synthesis
2. single displacement
3.double displacement
4.double displacement
Explanation:
1. here Mangananes (iv) oxide further reacts with oxygen to form Manganese (iii) oxide , two reactants making one product .
2. Carbon replaces aluminium from aluminium oxide to make pure aluminium and carbon monoxide and carbon dioxide.
3. sodium replaces barium to make sodium acetate , barium replaces sodium to make barium carbonate ( precipitate )
4. potassium replaces Hydrogen to produce potassium bromide, while hydrogen and hydroxide ions combine to make water .
The pH of a solution of 3-hydroxypropanoic acid is measured to be . Calculate the acid dissociation constant of 3-hydroxypropanoic acid. Be sure your answer has the correct number of significant digits.
Answers
Answer:
3.1 × 10⁻⁵
Explanation:
The pH of a 0.53 M solution of 3-hydroxypropanoic acid (HC₃H₅O₃) is measured to be 2.39. Calculate the acid dissociation constant of 3-hydroxypropanoic acid. Be sure your answer has the correct number of significant digits.
Step 1: Given data
Concentration of 3-hydroxypropanoic acid (Ca): 0.53 MpH of the solution: 2.39Step 2: Write the acid dissociation reaction
3-hydroxypropanoic acid is a weak acid that dissociates according to the following equation.
HC₃H₅O₃(aq) ⇄ C₃H₅O₃⁻(aq) + H⁺(aq)
Step 3: Calculate the concentration of H⁺
We will use the definition of pH.
pH = -log [H⁺]
[H⁺] = antilog -pH = antilog -2.39 = 4.07 × 10⁻³ M
Step 4: Calculate the acid dissociation constant (Ka) of 3-hydroxypropanoic acid
We will use the following expression.
Ka = [H⁺]² / Ca
Ka = (4.07 × 10⁻³)² / 0.53
Ka = 3.1 × 10⁻⁵
suppose you wanted to make 100 grams of water what is the molar mass of water
Answers
explanation:
What do you think it is?
Answers
Some acids can eat through or what type of metals
Answers
Answer:
mixture of hydrochloric and nitric acid can dissolve noble metals, such as gold and platinum.
Explanation:
Explain what is cellular growth and repair? Why is it important?
Answers
Answer:
Cell growth usually refers to cell proliferation, the increase in cell numbers that occurs through repeated cell division. Cell growth can also refer to the enlargement of cell volume, which can take place in the absence of cell division. As living things grow, some cells die or become damaged and need replacements. Some single-celled organisms use a type of mitosis as their only form of reproduction. In multicellular organisms, cell division allows individuals to grow and change by expanding the number of total cells.
Hope this helps!!!
8. How much heat is released when 85.0 g of steam condense to liquid water?
Answers
Answer:
199920J
Explanation:
Given parameters:
Mass of steam = 85g
Unknown:
Heat released when the liquid is condensed = ?
Solution:
The heat released by the substance is given as;
H = mL
H is the heat released
m is the mass
L is the latent heat of steam = 2352J/g
Heat released = 85 x 2352 = 199920J
A sample of He collected over water at a temperature of 20C has a pressure of 705 torr. What is the pressure of the dry gas? The vapor pressure of water at 20 degrees * C is 17.5 torr.
Answers
The pressure of the dry gas : 687.5 torr
Further explanationDalton's law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases
Can be formulated:
P tot = P1 + P2 + P3 ....
The partial pressure is the pressure of each gas in a mixture
Since the gas mixture consists of He and H₂O :
P tot=P He + P H₂O
[tex]\tt 705=P~He+17.5\\\\P~He=705-17.5=687.5~torr[/tex]
Which term refers to the process by which land is worn away by natural forces or human activity
I will mark brainliest
Answers
Answer:
The answer is A. Erosion
Explanation:
Took the quiz
Answer:
A- erosion
Explanation:
Erosion occurs when water, wind, or ice removes soil and rock and deposits it in a new area.
Occurs naturally, but is also impacted by human activity.
Caused by farming, deforestation, and building roads and cities.
What are the 3 ways that heat can transfer?
Answers
Answer:
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).
Explanation:
Answer:
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation). Heat is usually transfered in a combination of these three types and seldomly occurs on its own.
Explanation:
hope this helps u.
4. An atom is neutral because it has the same number of protons as it has:
electrons
O neutrons
O Neither... An atom isn't neutral!
Answers
Taking into account the constitution of an atom, an atom is neutral because it has the same number of protons as it has electrons.
Constitution of an atomAn atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
Every atom consists of a nucleus in which neutrons and protons meet and energy levels where electrons are located.
The neutron is an electrically neutral subatomic particle, while the proton has a positive electrical charge. Electrons have a negative charge, move around the nucleus at different energy levels and are attracted to protons, positive in the atom through electromagnetic force.
Atom electrically neutralAn atom is considered electrically neutral when it has the same number of positive and negative charges. That is, an electrically neutral atom has the same number of protons (with a positive charge) and electrons (with a negative charge).
In summary, an atom is neutral because it has the same number of protons as it has electrons.
Learn more about atom electrically neutral:
brainly.com/question/1814899
brainly.com/question/2449569
#SPJ2
Is water made of matter. Yea or no. Thanks everyone for your help
Answers
Answer:
yes
Explanation:
because it can take up space and it is a liquid and that is one of the three states of matter :]
Waters density is 1 g/cm^3. Glass has a density of 2.8 g/cm^3. Will glass float in water?
YES, it will float because its density is greater than the density of water/
This question cannot be answered because density does not determine buoyancy
NO, it will not float because its density is greater than the density of water
Answers
Explanation:
It will not float on water
Substances with their densities less than that of water usually float on it and those with their densities greater than that of water will sink into it.
From the question the density of glass is 2.8 g/cm³ and this is greater than the density of water which is 1 g/cm³. Therefore glass will not float on water.
Hope this helps you
Which orbitals cannot exist?
2p 3p 4d 3f 6s 2d
Mark all that are wrong.
Answers
Answer:
The orbitals 3f and 2d cannot exist.
Explanation:
Hello!
In this case, considering the attached picture in which you find each energy level with the corresponding number of subshells, it is possible to infer level one has s subshell only, level 2 s and p, level 3 has s, p and d and from level 4 to 7 have s, p, d f, therefore, the orbitals 3f and 2d cannot exist.
Best regards!
At which temperature could air hold the most water vapor?
Answers
Answer:
Now, what happens if we turn the room thermostat up to 80 degrees F? Looking at your Capacity of Saturated Air table, you can see that as air temperatures rise, there is an increase in the ability of the air to hold moisture. At 80 degrees F the capacity of air increases to where it can hold 21.537 g/kg of water vapor.
Explanation:
Answer: At 80 degrees F the capacity of air increases to where it can hold 21.537 g/kg of water vapor.
Explanation:
The attraction that nonpolar molecules have for each
other is primarily caused by the presence of
Answers
Answer:
Van der waals forces
Explanation:
I just know
Please solve quickly!!!
Answers
Answer:
18 oxygen atoms
Explanation:
in order to from the 6 molecules carbon dioxide and 6 molecules of water you will have a total of 18 oxygen atoms
3. Carbon -14 underwent radioactive decay and emitted beta particles.
a. Write an equation to represent this process
?
Answers
The decay reaction of Carbon-14 which releases Beta particles, resulting in the element Nitrogen-14
Further explanationRadioactivity is the process of unstable isotopes to stable isotopes by decay, by emitting certain particles,
alpha α particles ₂He⁴ beta β ₋₁e⁰ particles gamma particles ₀γ⁰ positron particles ₁e⁰ neutron ₀n¹Carbon-14 emits beta β ₋₁e⁰ particles , so the atomic number increases by 1, the mass number remains the same
Reaction
[tex]\tt \large{\boxed{\bold{_6^{14}C\rightarrow _7^{14}N+_{-1}^0e}}[/tex]
It is a vocal music of Mindoro
Answers
Answer:
instrumental music is used in festivals, rituals, etc.
Explanation:
20 POINTS HURRY!!!
A relationship in which one species benefits and the other is harmed is
A. mutualism.
B. cooperation.
C. commensalism.
D. parasitism.
Answers
Answer:
C. commensalism.
Explanation:
Here is the answer
Answer: THE ANSWER IS A
Explanation:
For all six solutions tested during this experiment,
the
is always the same. That
means that it is a constant throughout the
experiment
You can infer from this experiment that the
difference in the solutions is due to the
which will cause different flame
colors.
Answers
Answer:
1. Chloride ion
2. Metal ion
3. The same as a sample with the identical metal ion.
Explanation: I Just took the quiz on Edge 2021
Please help me with this
Answers
Answer:
b
Explanation:
Electrons have negative charges and Protons have positive.
you can remember this by (Pro)ton = (Pos)itive
How many grams of chromium(II) sulfate, , must be dissolved to prepare 500. mL of a 0.219 M aqueous solution of the salt?
Answers
Is ice a food or a drink
Answers
Answer:
a drink my guy
Explanation:
just frozen
Which is an example of the electromagnetic force?
- A compass needle points north toward earths magnetic pole
- An iron nail rolls off a table and falls to the ground
- the moon pulls on the water in earths oceans, causing tides
- protons that make up a nitrogen atom stays together in the nucleus
Answers
Answer:
The correct Answer is A.
proof below <3
which si unit would be most appropriate for describing the lengeth of the shoe?
Answers
Doeowknsnd cjxjznnzns sm
What type of atoms form covalent bonds?
Answers
Answer: :)
Explanation:
In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom
Answer:
In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.
Explanation:
