Answers
Answer:it's either the first or second one
Explanation:
the layers of the earth
Related Questions
How many moles of NaOH must be dissolved in 1.00 L of water to make NaOH (aq) with a pH of 12.2?
Answers
Answer:
1.58 102 mol
Explanation:
I just looked it up on Quizlet.
1.58 102 moles of NaOH must be dissolved in 1.00 L of water to make NaOH (aq) with a pH of 12.2.
How many moles are present in NaOH?One mole of any substance weighs about the same as the molecular mass of that substance. Hence, the number of moles of sodium hydroxide contained in 160 g of it is 4 moles.
How do I calculate moles?Number Of Moles Formula
1 The formula for the number of moles formula is expressed as.
Given.
2 The number of moles formula is.
3 The number of moles = Mass of substance / Mass of one mole.
4 Number of moles = 95 / 86.94.
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As ice cream melts, the particles in it will _____ which causes it to ____ thermal energy.
a. Speed up, lose
b. Speed up, gain
c. Slow down, lose
d. Slow down gain
There isn't a subject for science so I put it as chemistry
Answers
Answer:
b. speed up, gain
Explanation:
NEEED HELP ASAP
Metals are ductileYou can pull or draw them into a wire. The ductility of a material is a / a *
A) chemical property
B) extensive property C)intensive property
D) reactive property
Answers
Is the modern periodic table arranged based on atomic mass?
HELPP ILL GIVE BRAINLIEST
Answers
Answer: its b
Explanation:
HELP! ASAP
WILL MARK DOWN BRAINLIEST
Answers
Answer:
SO 4. IS he has small dicke
:D happy to help
Explanation:
An object that mass a lot of mass for a unit volume is said to be very: O high in calories There is not enough information to answer the question dense O loud O None of these answers
Answers
Answer:
There's not enough information because it just says "a lot of mass" no definite numbers or "masses"
An object is moving across a surface, but it does not gain or lose speed. Which best describes the object’s force?
Answers
Answer:
Explanation:
the vector sum of all such forces which equals zero for an object at rest. CASE 1: Considering a basketball of weight 1kg, if it has been kept stationary on the ground, there are two forces acting on it. These are it's weight (gravity) and equal and opposite force from the ground (normal reaction).
Answer:
The net force is zero. :)
Explanation:
how a neutral object is different from a negatively charged object.
Answers
Answer:
Charged objects have an imbalance of charge - either more negative electrons than positive protons or vice versa. And neutral objects have a balance of charge - equal numbers of protons and electrons. ... Their presence (or absence) will have no direct bearing upon whether an object is charged or uncharged.
What is the work done on an object moved a distance of 63 m with a force of 8.5 x 103
Newtons?
Answers
Answer:
5.355 × 10³ JoulesExplanation:
I just had this question on my test
How to balance:
_N2+__O2+__H2O-> _HNO3
Answers
Answer:
2N2 + 5O2 + 2H2O → 4HNO3
Explanation:
Dinitrogen - N2
N₂ Nitrogen Gas Nitrogen Diazyne
Molar Mass of N2 Bond Polarity of N2
Dioxygen - O2
O₂ Oxygen Molecular Oxygen Diatomic Oxygen Triplet Oxygen Oxygen Gas Liquid Oxygen LOx
Molar Mass of O2 Bond Polarity of O2
Water - H2O
Dihydrogen Monoxide Dihydridooxygen [OH2] HOH Hydrogen Hydroxide Dihydrogen Oxide Oxidane Hydrogen Oxide
Molar Mass of H2O Oxidation State of H2O
Products
Nitric Acid - HNO3
Spirit Of Niter Fuming Nitric Acid Aqua Fortis Engravers Acid Hydrogen Nitrate HONO2 Peroxynitrous Acid [NO(OOH)]
Molar Mass of HNO3 Oxidation State of HNO3
The Guarantee Clause gives the legislature the power to make all necessary and proper laws.
Answers
Answer:
True
Explanation:
Answer:
True ;)
Explanation:
The transfer of energy in the form of invisible waves is
Answers
Answer:
Radiation
Explanation:
how many cm is 0.375 ft.
Answers
Answer:
11.43 cm
Explanation:
Which of the following statements explains the difference between a lease and a loan?
a. At the end of a loan the car belongs to you, but at the end of a lease, the car still belongs to the
lease company
b. At the end of a loan, the car still belongs to the lease company, but at the end of a lease the car
belongs to you.
c. A loan requires a large down payment at the beginning while a lease does not.
d. A lease requires a large down payment at the beginning while a loan does not.
Please select the best answer from the choices provided
Answers
Answer:
letter A is the answer
Explanation:
At the end of a loan the car belongs to you, but at the end of a lease, the car still belongs to the lease company.
What dose sediment consisting
Answers
Answer:
sediments consist of rocks and minerals, as well as the remains of plants and animals
Explanation:
What is the lon # for Beryllium (Be)?
Answers
Answer:
Number: 4
Charge: +2
Element: Beryllium
I hope this helps!! :)
4. (10 Points) Write a single replacement reaction where one of the reactants is
ammonium nitrate.
Include the states of matter for each of the reactants and products.
Answers
Answer:
For each balanced reaction, indicate the total number of atoms in the table below. Reaction. Total Number of Atoms. Reactant Side 1 Product Side. (Left).
Explanation:
URGENT!!!! How many molecules of carbon dioxide are produced when a molecule of C7H15 combusts?
Answers
Answer:
7 seven
Explanation:
because when C7H15 is heated 7molecules of atoms are displaced
What is the difference between chlorine -35 and chlorine -37?
Answers
Answer:
Free chlorine involves the amount of chlorine that's able to sanitize contaminants, while combined chlorine refers to chlorine that has combined directly with the contaminants. Total chlorine is basically the sum of free chlorine and combined chlorine.
Explanation:
chlorine -35 being chlorine
chlorine -37 being free chlorine
Which of the following are physical properties?
1. Water freezes at 0°C.
2. Diamonds are the hardest known substance.
3. Sugar is capable of dissolving in water.
4. Vinegar reacts with baking soda.
5. Most metals are malleable.
6. Most metals react with acids.
7. The density of acetic acid is 1.05 g/mL.
8. The length of a piece of aluminum foil is 12.2 cm.
9. Copper conducts electricity.
Answers
Answer:
1,2,3,5,7,8,9
Explanation:
are all physical properties
Determine the products of this unbalanced reaction: Select all that
apply
Ba
+
N2
-
Ba3N2
BaN2
Ba2N
BaN
BaNO2
Answers
Answer:
Ba3N2
Explanation:
valency of barium is+2and nitrogen is-3.
Explain the role of family and friends in socialisation.
Answers
Explanation:
Family is usually considered to be the most important agent of socialization. They not only teach us how to care for ourselves, but also give us our first system of values, norms, and beliefs. ... Another agent of socialization that relates to school is our peer group.
Methane(CH4) is a gas at room temperature, Methanol (CH3OH) is a liquid. Explain why using types of intermolecular forces present.
Answers
Explanation:
Methane is a gas at room temperature but methanol is a liquid because in methane there's London dispersion intermolecular force but in methanol there's H-bond and London dispersion force. H-bond is more stronger than London dispersion force. So, it increases the boiling point of methanol that's why methane is gas at room temperature due to weak attraction of London dispersion force and methanol is liquid.
Methanol has a higher boiling point than methane due to stronger intermolecular forces (IMFs), or attraction between individual molecules. This makes its molecules more difficult to separate, requiring more energy and resulting in a higher boiling point.
What are intermolecular forces?An intermolecular force is a force that mediates the interaction of molecules, including electromagnetic forces of attraction or repulsion that act between atoms and other types of neighboring particles, such as atoms or ions.
Intermolecular forces are classified into five types namely,
Ion-dipole forces.Ion-induced dipole forces.Dipole-dipole forces.Dipole-induced dipole forces.Induced dipole forces.Between ions and polar dipole molecules, ion-dipole forces exist.
Since of stronger intermolecular forces (IMFs), or attraction between individual molecules, methanol has a higher boiling point than methane.
This makes it more difficult to separate its molecules, requiring more energy and resulting in a higher boiling point.
Thus, this is the reason of using types of intermolecular forces present.
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What is the value for AG at 100 Kif AH = 27 kJ/mol and AS = 0.09 kJ/(mol-K)?
A. AG = 2700 kJ/mol
B. AG = -36 kJ/mol
C. AG = 0 kJ/mol
D. AG = 18 kJ/mol
Answers
Answer:
ΔG = 18KJ/mol
Explanation:
Given data:
ΔS = 0.09 Kj/mol.K
ΔH = 27 KJ/mol
Temperature = 100 K
ΔG = ?
Solution:
Formula:
ΔG = ΔH - TΔS
ΔS = entropy
ΔH = enthalpy
by putting values,
ΔG = 27 KJ/mol - 100K(0.09 Kj/mol.K)
ΔG = 27 KJ/mol - 9 KJ/mol
ΔG = 18KJ/mol
Answer:
ΔG = 18kJ/mol
Explanation:
took the quiz on ap ex and it was correct
Find three examples of synthetic compounds that contain aromatic rings. Indicate their source or importance
Answers
Answer:
Viagra, Cialis, and Levitra each contain aromatic rings.
They are all ED pills and come from drug manufacturing laboratories (you said "synthetic").
Explanation:
What is the molecule that formed between B and F?
Answers
Answer:
Hydrogen bond strengths range from 4 kJ to 50 kJ per mole of hydrogen bonds. In molecules containing N-H, O-H or F-H bonds, the large difference in electronegativity between the H atom and the N, O or F atom leads to a highly polar covalent bond (i.e., a bond dipole).
Explanation:
What is the molecular formula of the compound with a molecular weight of 112 g/mol and percent composition: 85.6% C and 14.4% H?
Select one:
a. C2H4
b. CH2
c. C4H8
d. C8H16
Answers
Answer:
Molecular formula = C₈H₁₆
Explanation:
Given data:
Percentage of hydrogen = 14.4%
Percentage of carbon = 85.6%
Molecular formula = ?
Molecular weight = 112 g/mol
Solution:
Number of gram atoms of H = 14.4/ 1.01 = 14.26
Number of gram atoms of C = 85.6/ 12 = 7.13
Atomic ratio:
C : H
7.13/7.13 : 14.26/7.13
1 : 2
C : H = 1 : 2
Empirical formula is CH₂
Molecular formula:
Molecular formula = n (empirical formula)
n = molar mass of compound / empirical formula mass
n = 112 / 14
n = 8
Molecular formula = n (empirical formula)
Molecular formula = 8 (CH₂)
Molecular formula = C₈H₁₆
An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to
the right. What is the displacement of the object?
1
5
7
13
Answers
Answer:
the answer will be five
Explanation:
i got this question on a test and i got it right
i need to know what occupied vs full means for chemistry
Answers
Explain the electroplating process of an iron key with silver. the materials provided for electroplating is AgNO3 solution, silver rod and iron key.
Answers
Answer:
See explanation
Explanation:
The process of electroplating an iron key with silver involves electrolysis.
The anode is a silver rod, the electrolyte is AgNO3 solution while the cathode is the iron key. A battery is connected to provide energy to drive the non-spontaneous electrochemical reaction.
Electrons flow from the anode to the cathode. Silver ions from the silver rod replenishes the silver that is deposited on the iron key in order to continue the electrolytic process.
The silver anode is therefore depleted in mass while the iron key increases in mass.