your answer would be sound energy
Explanation:
my brain
Phosphates are formed when phosphorus reacts with
A. carbon.
B. oxygen.
C. nitrogen.
Option B is correct. Phosphates are formed when phosphorus reacts with Oxygen
A phosphate group is formed from the bonding of four oxygen atoms to a phosphorous atom. The chemical reaction is as shown:
P + O₄ -> PO₄
P is the symbol of phosphorus
O is the symbol of oxygen
When both elements combine, they form phosphates.
Hence we can conclude that Phosphates are formed when phosphorus reacts with Oxygen
Learn more here: https://brainly.com/question/13652744
Where is carbon dioxide and oxygen exchanged at capillaries?
Answer:
Gas exchange takes place in the millions of alveoli in the lungs.
Explanation:
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
what is the atomic number of an atom?
Answer:
The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom
Explanation:
Gas
% of Volume
7.
N
78
Oz
21
Ar
.9
CO2
.04
Ne
1.0018
He
.00052
CHA
.00017
Kr
.00011
H2
.00006
Using the chart above, which gases make up the majority of the Earth's atmosphere?
HELP ASAP
Answer:
this would be the .04 it is very simple
Explanation:
How does energy play a role in different rock types forming? I had this question another time in my test and it's asking the same thing again.
Answer:
Yes
Explanation:
Yes, there are many energy forces that directly affect the formation of rocks and other substances. The Sun itself provides both energies in the form of heat/radiation and magnetic energy. Heat can get so intense when combined with pressure from being so far underground that it causes rocks to melt and become magma, which combines with other minerals and forms new types of rocks when they cool in the future. Magnetic energy helps push and pull the waves and wind on Earth which ultimately break down rocks into sand over the years.
Which of the situations below describes an ethical dilemma related to food
engineering?
Answer:
Pesticides protect our crops
Explanation:
4.91 M NaOH solution (density=1.04g/ mL)
Which plant structures are common to all angiosperms?
spores
flowers
cones
endoskeleton
Answer:
B
Explanation:
How do you create a sedimentary
rock?
Help please!!!!15 points
what element has the same number of valence electrons as argon
Answer: There are two elements actually and those elements are Carbon and Silicon
Explanation:Plz mark brainliest if im right
Which substance contains positive ions immersed in a sea of mobile electrons?
a. O2 (s)
b. CuO (s)
c. Ag (s)
d. SiO2 (s)
The substance, silver (Ag), we can see positive ions immersed in a sea of mobile electrons.
What is metallic bond?The term metallic bond refers to the bonding between metal atoms. This bonding consists of positively charged ions and a sea of electrons bonded together electrostatically.
Hence, in the substance, silver (Ag), we can see positive ions immersed in a sea of mobile electrons.
Learn more about metallic bond: https://brainly.com/question/5147266
need helped for this
How does environmental changes affect animals?
Environmental changes affect animals depending on their ability to adapt to new conditions.
What is adaptation?An adaptation is any type of phenotypic feature associated with a higher fitness in a particular environment.
Adaptations are features that allow organisms to adapt to challenging environmental conditions.
In conclusion, environmental changes affect animals depending on their ability to adapt to new conditions.
Learn more about animal adaptations here:
https://brainly.com/question/29594
#SPJ1
1. A 4.00 L sample of air at 35 degrees C expands to 5.50 L when heated. What is
the new temperature, in degrees Celsius, of the air
Answer:
150.5 °C
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 4 L
Initial temperature (T₁) = 35 °C
Final volume (V₂) = 5.5 L
Final temperature (T₂) =?
Next, we shall convert 35 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
Initial temperature (T₁) = 35 °C
Initial temperature (T₁) = 35 °C + 273
Initial temperature (T₁) = 308 K
Next, we shall determine the final (i.e the new) temperature of air. This can be obtained as follow:
Initial volume (V₁) = 4 L
Initial temperature (T₁) = 308 K
Final volume (V₂) = 5.5 L
Final temperature (T₂) =?
V₁ / T₁ = V₂ / T₂
4 / 308 = 5.5 / T₂
Cross multiply
4 × T₂ = 308 × 5.5
4 × T₂ = 1694
Divide both side by 4
T₂ = 1694 / 4
T₂ = 423.5 K
Finally, we shall convert 423.5 K to celsius temperature. This can be obtained as follow:
T(°C) = T(K) – 273
T₂ = 423.5 K
T₂ = 423.5 – 273
T₂ = 150.5 °C
Thus, the new temperature of the air is 150.5 °C
During spontaneous fission, a nucleus of 25498Cf can produce 11846Pd, four neutrons, and what other nuclide?
Answer: 52Te - Tellurium
Explanation: Radioactivity occurs when an unstable nucleus of an element decompose into a stable element by emitting particles or forms of eletromagnetic energy. There are types of radioactivity and Spontaneous Fission is one of them.
In Spontaneous Fission, the unstable, also called parent, nucleus splits into two smaller nuclei and emitts one or more neutrons.
The reaction spontaneous fission of Cf is represented below.
25498Cf ⇒ 11846Pd + 4n + X
The characteristics of each element of the equation are:
1) The element Cf has atomic mass 254 and atomic number 98.
2) Element Pd has atomic mass 118 and atomic number 46.
3) Neutron is represented as n, has no atomic number and atomic mass 1.
Given these properties, to determine the other nuclide, we have to find out the nuclide's atomic number, as each element in the periodic table has its own atomic number.
At the left side of the equation, atomic number is 98. At the right side, element X's atomic number is
98 - 46 + 0 = 52
In the periodic table, the element with atomic number 52 is Tellurium, whose symbol is Te.
The other nuclide for the spontaneous fission is Tellurium (Te).
How much carbon dioxide will be formed if 12.5 grams of oxygen reacts with 7.2 grams of propane?
Answer:66 grams of Carbon Dioxide.
Explanation:
The common currency of chemistry is moles. So it is necessary to change the mass of propane to moles. Then write a balance equation so the moles of propane to moles of Carbon Dioxide. Finally moles of Carbon Dioxide must be changed to grams.
C 3 H 8 + 5 O 2 = =3 C O 2 + 4 H 2 O
This is the balance equation for the burning of propane in Oxygen.
From the equation it can be seen that 1 mole of propane makes 3 moles of Carbon Dioxide a ratio of 1:3
Convert 22 grams of propane to moles by dividing by the molar mass of propane.
3 x 12 = 36 grams
1 x 8 = + 8 grams
total = 44 grams/ mole.
22
44
= .5 moles of propane.
Using the ratio of 1:3 .5 = 3( .5) = 1.5 moles of Carbon Dioxide.
Now multiply 1.5 moles of Carbon Dioxide by the molar mass of Carbon Dioxide
1 x 12 = 12 grams
2 x 16 = +32 grams
total = 44 grams /mole.
1.5 moles x 44 grams/mole = 66 grams.
hope that helps :)
Home can use ____to distribute warm air from a sunroom
Answer:
Solarpannels? I honestly don't know I'm just trying to be helpful.
Use the periodic table to determine which of the
following could be an isotope of bromine (Br).
Check all that apply.
Z = 79, A = 196
Z = 35, A = 79
A = 79, N =44
D Z = 44, N = 44
Answer:
A=79,N=44
Z=35,A=79
Answer:
Explanation:
Answer:
A=79,N=44
Z=35,A=79
A 1,000 kg ball traveling at 5m/s would have kinetic energy
Answer:
yes
Explanation:
Answer: 10 times more
10 times less
The same
Explanation:
e d g e b u t t ( i just got it wrong lol) but this is right:)
What is 360mL of fluids measured in cc's?
Answer:
360mL is 360 cc
Explanation:
1 ml to cc = 1 cc
9.32 x 1024 atoms of NaOH
Explanation:
65463.68 atoms of NaOh I believe.. I really dont know sorry
Im dum.b help
When a grasshopper egg hatches, a baby grasshopper called a pupa comes out of the egg and begins to grow. Although the nymph grasshopper already looks like a grasshopper, it still needs to molt its exoskeleton many times before becoming a full-grown adult."
Which statement corrects the error in the passage?
Question 3 options:
A baby grasshopper is a larva.
A baby grasshopper is a nymph.
The grasshopper nymph hatches.
The nymph has no exoskeleton.
Answer:
2.A baby grasshoper is a nymph.
Explanation:
Answer:
yourinagenjitsulol
Expert
75 answers
3.6K people helped
Answer:
2.A baby grasshopper is a nymph.
Explanation:
i agree
You do an experiment in which you need 0.25 mole of tyrosine (C,H11 NO3).
How many grams must you weigh out?
A). 45.3 g
B). 90.5 g
C). 181 g
D). 272 g
Answer:
B.90.5 g
Explanation:
not 100%sure hehe
Answer:
45.3
Explanation:
I got it wrong on my test and this was the only correct option for me.
How many significant figures are in this measurement: 1,250,500
(25 POINTS AND BRAINLIEST)What is the volume of 2 mol of chlorine gas at STP?
2.0 L
11.2 L
22.4 L
44.8 L
Answer:
44.8
Explanation:
According to standard temperature and pressure and ideal gas equation , the volume of 2 mole of chlorine gas at STP is 44.8 liters.
What are standard temperature and pressure conditions?Standard temperature and pressure are defined as a standard set of conditions required for experimental measurements which are established to allow comparison between different sets of data.
Standards which are commonly used are those International Union of pure and applied chemistry and national institute of standards and technology.These are not universally accepted standards but are the ones which are commonly used.
Standard conditions of pressure and temperature are necessary to define standard reference conditions used to express volumes of liquids and gases.
These values are important to physicists, chemists ,engineers ,pilots and navigators.On substituting values in ideal gas equation, volume= 2×8.314×273/1=44.8 liters.
Thus, the volume of 2 mole of chlorine gas at STP is 44.8 liters.
Learn more about standard temperature and pressure , here:
https://brainly.com/question/29129606
#SPJ6
6. Which of the following best describe the graph of linear inequalities in two
variables?
A. Straight line
C. Half-plane
B. Parabola
D. Half of a parabola
7. Which of the following inequalities is represented by the given
graph?
A. 2x + 2y > 2
C. 3x + 2y > 2
B. 3x + 2y = 2
D. 3x - 2y < 2
1
8. An inequality using a < or > has a line.
A. horizontal
C. solid
B. broken
D. vertical(h).
9. Which is the correct inequality for the shaded region?
A. y = - x - 1
C. y > -x - 1
B. y <- x + 1
D.y > x - 1
10.What type of line and what way would you shade with the sign "<"?
A. broken, shaded up
C. broken, shaded down
B. solid, shaded up
D. solid, shaded down
11. Given the graph of y? 2x - 5 below, which of the following
ordered pair satisfies the inequality?
A. (2,-5)
C. (-2,-7)
B. (5,2)
D. (5,-7)
I gave brainlest ...
Answer:
I hope I can help youExplanation:
I hope I can help youAs per the following graph that best describes the linear inequality in two variables is included in a straight line.
The linear inequality divided the coordinates plane into two halves. Here one half represents the solution and the other the inequality. Hence the option A is correct. The inequality that is represented by the graph is 3x + 2y = 2, Hence option B is correct. The correct inequality for the shaded region is y <- x + 1, hence the option C is correct. The line and shade with the sign "<" means that they are broken and shaded up. Hence the option A is correct. The given graph consists of equation 2x - 5 where to find Y in order of the pairs that satisfy the inequality are (5,2) hence the option B is correct.Learn more about which of the following is best described.
brainly.ph/question/8809815.
What’s Neon family number? And period?
Answer:
18 and Period 2
Explanation:
Neon (Ne), chemical element, inert gas of Group 18
Neons period on the periodic table is period 2.
A company uses chlorine to produce titanium chloride from titanium dioxide.
What is the relative formula mass (Mr) of titanium dioxide, TiO2?
Relative atomic masses (Ar): O = 16 Ti = 48 *
Answer:
80 g/mol
Explanation:
The Relative formular mass is the sum of the relative atomic masses of the elements present in the molecule.
TiO2;
There is one Ti atom and 2 O atom. Their atomic masses is given as;
TiO2 = 48 + 2(16) = 48 + 32 = 80 g/mol
How would the reactivity of an element with one valence electron vary from an element with 8 valence electrons
Answer:
An element with 1only one valence electron is extremely reactive while an element with 8 valence electrons is very stable and does not react most of the times
Explanation:
Valency is the number of electrons in the outermost shell of the atom. It shows the ease with which elements react and combine with each other.
An element can take a maximum of 8 electrons in most of its outermost shells. As a matter of fact, the goal for its stability is to attain a structure with all 8 slots for electrons in its outer shell filled up. The element can either do this by adding or removing electrons.
The ease with which it adds or removes the electrons shows its reactivity. If it has only one electron to lose, (the valence electron) the element will be very reactive because this is relatively easier to do when compared with 2 electrons, three electrons, and so on. An element with 8 electrons in its outer shell is very stable and does not need to react anymore. an example of this is Neon and Argon.
how many moles are in 32.3g of calcium phosphate
Answer: the formula mass of calcium phosphate [Ca3(PO4)2] is 310.177 amu, so its molar mass is 310.177 g/mol. This is the mass of calcium phosphate that contains 6.022 × 1023 formula units.
Answer: 310.177