Answers
Answer:
a) the tendency to form hard, brittle crystals.
Explanation:
Metallic bonding occurs between metals; metals are excellent conductors of electricity, are malleable (can be hammered into thin sheets) and have luster (are shiny). Brittleness is indicative of an ionic bond or ionic compound.
Related Questions
"Don't use such phrases here, not cool! It hurts our feelings :( "
IS THE COMMENT EVERY DANG TIME YOU TRY TO TYPE ANYTHING TO POST! anyone else having this problem?
Answers
Answer:
ye, i always have that problem. my stuff gets deleted too :'((
Please help me with dis
Answers
Answer:
c
Explanation:
Please help me, I am confused
Answers
Answer:
B
Explanation:
Ionic compound can conduct electricity
How to convert celcius to Kelvin?
Answers
Answer:
temperature
Explanation:
Why is think chemistry is important? i need 5 paragraph please
Answers
Answer:
because it is so fundamental to our world . chemistry plays a role in everyone lives.
It touches almost every aspect of our existence in some way.
Chemistry is essential for meeting our basic needs of food, cloth, etc.
Chemistry plays a important and useful role towards the development and growth of industries.
chemistry also helps you become who you want to be.
Which of the following chemical reactions produces water via a
synthesis reaction?
a 2H2 + O2 + 2H2O
b NaOH + HCI - NaCl + H2O
C CuO + H2 - Cu + H2O
d H2CO3 → CO2 + H2O
Answers
Answer:
Should be A, but also I think there should be an arrow between O2 and 2H2O
How many total atoms in 5 mg(NO3)2
Answers
Answer:
5 Mg (magnesium), 2 N (nitrogen), and 6 O (oxygen) -- total of 13 atoms
There are 45 as 1 mg(NO3)2 = 9 atoms.
What effect does the concentration of reactants have on the rate of a
reaction?
A. Changing the concentration has no effect on the reaction rate.
B. Increasing the concentration decreases the rate of the reaction.
O C. Increasing the concentration increases the rate of the reaction.
O D. The effect of concentration on rate varies within the reaction.
Answers
Answer:
C
Explanation:
The answer is C as concentration is a major factor affecting the rate of reaction and it has a direct relationship with the rate of reaction.
The effect that the concentration of reactants has on the rate of a reaction is increasing the concentration increases the rate of the reaction. The correct option is C.
What is a reactant?A reactant is a part of a reaction that is the first part of the reaction. Reactant can be more than one in the reaction. The different reactant reacts, and form a totally different product.
H2 + O2 = H2O
The hydrogen and oxygen are the reactants of the reaction.
Thus, the correct option is C. Increasing the concentration increases the rate of the reaction, as concentration plays a significant role in determining the rate of reaction and is directly related to it.
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I need help I don’t get this
Answers
Answer:
Visit: gotit-pro.com
Explanation:
119 kPa x 1 atm/101 kPa = 1.18 atm
2) Convert temperature to Kelvin
35 + 273 = 308 K
3) Use PV=nRT and solve for V
(1.18 atm)(V)=(0.0972 mol)(0.0821)(308 K)
V = (0.0972 mol)(0.0821)(308 K) / (1.18 atm)
V = 2.08 L
What is the charge of cobalt in CoCl2?
Answers
Answer:
The oxidation number of cobalt is +2.
4 Hydrogen has three naturally occurring isotopes. H.1, H-2, and H-3 The atomie mass of Hydrogen is 1.097 Which isotope is most abundant in nature? Explain
Answers
Answer:
The number following the name of the element is the number of subatomic particles inside the nucleus of the atom. This means that it is the mass number of the isotope. The average atomic mass of the element is the sum of the products of the percentage abundance and mass number of the naturally occurring isotopes.
Since, the average atomic mass of the hydrogen is nearest to 1 then, the most abundant isotope should be hydrogen-1.
How many moles of MgO are produced if 0.37 moles of O2 react with excess of Mg?
Answers
Answer:
yez so the answer is mg 1.0
Explanation:
The excess reactant is present in an amount that is greater than required. The amount of MgO that is produced in the reaction is 0.74 moles.
What is an excess reactant?An excess reactant is that reantant thatis present in an amount that is more than required.
Now we are told that the magnessium is the reactant in excess so we have to use the amount of oxygen.
The reaction is: 2Mg + O2 ---->2MgO
1 mole of O2 produces 2 mole of MgO
0.37 moles of O2 produces 0.37 moles * 2 moles/1 mole
= 0.74 moles
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Which is an example of a medicine that is made up of synthetic materials?
Fish Oil
Aspirin
Aloe Vera
Fresh water
Answers
Answer: Aspirin
Explanation:
I need help with this question
Answers
Answer:
B
Explanation:
it's all about the genetics of the horse
How many grams are in 2.50 moles of copper?
Answers
Answer:
There are 63.546 grams in a 2.50 moles of copper.
Can someone please help I need help?!?!
Answers
Answer:
a: 6 moles
b: 6.75 moles
c: 5 grams
Explanation:
a: mole ratio 2:3
b: mole ratio 2:3
c: mole ratio 2:2
Which type of reaction occurs in the following?
2HgO(s) Right arrow. 2Hg(l) + O2(g)
a decomposition reaction in which a metal is reduced
an acid-base neutralization reaction to produce oxygen gas
a displacement reaction involving two metals
a combustion reaction involving burning a metal in oxygen
Answers
Answer:
decomposition
Explanation:
the reactants turn into two different products, thus the reaction is decomposition.
AB -> A + B
Answer:
A: a decomposition reaction in which a metal is reduced
Explanation:
HgO is actually the metal Mercury and in the equation Mercury is being decomposed into the elements Hg and O. (the element for Mercury and Oxygen) So the equation they give you is a decomposition.
Why the bond in water molecule os polar covalent bond, while than in chlorine molecule is pure covalent bond? Give reason?
Answers
Explanation:
The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side). We say that the water molecule is electrically polar.
What are the coefficients needed to balance
the following chemical equation?
--- N2 + --- F2 ---> --- NF3
Answers
The balanced equation:
N2 + 3 F2 ---> 2 NF3
what is computer hardware in short?
Answers
Answer:
computer hardware is a collection of a physical part of a computer system
examples = CPU , monitor , mouse etc
बा
If OPPOSITE poles (N and S) of
a magnet are placed near
each other, what happens?
Type answer here
Answers
Answer:
They attract each other
Explanation:
A magnet has two poles;
North pole and south pole
When two opposite poles are placed close to each other, they attract each other. The short rule is opposite opes attract.
When two like poles are placed close to each other, they repel each other. The short rule is like poles repel.
13. If a chemist has 12.3 moles of N H 03, what is the mass of the sample?
Answers
Answer:
209.4831 g
Explanation:
number of moles × molar mass = mass of substance in g
12.3 × ( 14.0067 + 1.00484 × 3 ) = 209.4831 g
The inflation of airbags is due to the breakdown of a single chemical substance into two separate substances.
Two molecules of sodium azide (NaN3) break down into sodium (Na) and nitrogen gas (N2) during the reaction.
How many sodium (Na) atoms are produced in the reaction?
1 Na atom
2 Na atoms
3 Na atoms
Answers
Answer:
The correct answer would be
B. 2 Na atoms
Explanation:
As seen in the picture below,
What do u mean by electronic configuration? What are basic requirements while writing electronic configuration of an element (atom) ?
Answers
The basic requirement while writing the electronic configuration of an element (atom) is its atomic number.
Explanation:
The electronic configuration of an element is the distribution of its electrons in different energy levels around the atomic nucleus.It only requires an atomic number of an element to write its electronic configuration.The atomic number is equal to the number of protons in an atom and that is equal to the number of electrons.And the filling of electrons is done according to the Aufbau principle, the electrons will be first filled in the atomic orbitals with lower orbital energy before filling the atomic orbital with higher energy.The sequence of the atomic orbitals from lower energy to higher energy is:[tex]1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d...[/tex]
For example:
The atomic number of gallium is 31, its electronic configuration will be:
[tex][Ga]=1s^2 2s^2 2p^63s^2 3p^6 4s^2 3d^{10} 4p^1[/tex]
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Task B: Use the following maps to complete the questions:
Plantsburgh
2090
30
Watertown
35920
988
Lake Ontario
Rochester
317
Buffalo
2911
20
29 960
18
Lake
Erie
-992-
Utica
42,
983)
39
Albany
Ithaca
-996
051
36
40 960
1000
38
1004
1008
1. Which type of pressure center is shown on the map?
a) Low pressure
b) High pressure
une used to collect this data
Answers
Answer:
1. B2. A3. B4. B5. CI HOPE IT HELPS :) 100% surenessConvert 15oc to K
(l’ll mark you as brainlister)
Answers
Answer:
15oC to K
oC +273
15+273
288K
How did chemists make their proposed model of the sub atomic particles?
Answers
Answer:
Because they want to clarify or give solution to the particle that the other didn't know
Explanation:
Correct me if im wrong thanks
A weight of 8.7 N is attached to a spring that has a spring constant of 190 N/m. How much will the spring stretch?
Answers
Fs=8.7N
K=190N/m
Unkown:
X=?
Equation:
Fs=Kx
8.7N=(190N/m)x
X=4.6*10power of-2m
Given values are:
Force, Fs = 8.7 NSpring constant, k = 190 N/mAs we know the relation,
→ [tex]Fs = K\times x[/tex]
or,
→ [tex]x = \frac{Fs}{k}[/tex]
By putting the values, we get
[tex]= \frac{8.7}{190}[/tex]
[tex]= 4.6\times 10^{-2} \ m[/tex]
Thus the response above is right.
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Question 1
1. Na2O + H20 --->
NaOH
A. Single Replacement
B. Double Replacement
c. Decomposition
D. Synthesis
E. Combustion
Answers
Answer: D. Synthesis
Explanation:
Sodium Oxide + Water = Sodium Hydroxide
If more reactants are used in a chemical reaction, more products will be
produced. This is because *
1 point
More reactants have more atoms to react to form more products
More reactants take up the same volume
Too many products can slow down the reaction
More reactants cause the reaction to heat up
Answers
More reactants have more atoms to react to form more products.
More reactants have more atoms to react to form more products in a chemical reaction.
What is a Chemical reaction?This is the process which involves two or more molecules known as reactants collide with the right orientation and force to form a new product.
Increase in reactants means presence of more molecules involved in the reaction thereby leading to the formation of more product.
Read more about Chemical reaction here https://brainly.com/question/11231920?source=archive