A neutral atom has 12 protons. In chemical bonding, which is the most likely charge of the ion?
A. 2+
B. 1+
C. 2-
D. 6-
How is sublimation and deposition different from melting and freezing?
Help! Will give will give brainllest
1. An airplane flies 1431 miles in 2 hours 15 minutes. What is its average speed in miles per hour?
2. A train travels 76 miles in 1 7/12 hours. What is its average speed in miles per hour?
3. An airplane flies 1914 miles in 2 3/4 hours. What is its average speed in miles per hour?
4. A train travels 102 miles in 2 5/6 hours. What is its average speed in miles per hour?
5. Tracy runs 26.2 miles in 3 hours and 45 minutes. What is her average pace in minutes and seconds?
Answer:
1. 636miles/hour
2. 53.65milesper hour
3.696miles per hour
4.37.09mikes per hour
5. 6.99miles/hour
Explanation:
you first convert all the time into improper fractions
then work out speed which is got by dividing distance with time
Beryllium
Be
+
Sulfur
So
Be2+ + S2- -> BeS
Product formula : BeSWhere does condensation occur?
lithosphere (rocky, crust of earth)
atmosphere (clouds)
hydrosphere (lakes and oceans)
biosphere (where the living things are)
SOMEONE PLEASE HELP!!!
Answer:
1 is correct and 2 is liquid
Explanation:
Substance to
be dissolves
less of it
Answer:
solute
Explanation:
1.When two systems that have the same temperature are put in contact with each other, is there heat transfer going on?
2.When two systems that have different temperatures are put in contact with each other, is there going to be heat transfer? Explain.
Answer:
Sorry I don't know the answer of your question I am sorry.
Picture is below! Thanks :)
Answer:
A compound is material formed by chemically bonding two or more chemical elements.And if it can be separated than you know that its a compound.
Explanation:
have a goooooooood day:)
0.3747x + 11.598 pls help meeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
that isn't a full equation but I will assume this is = to 0
that makes x 30.95
Explanation:
how many days does it take one moon phase go to the next?
Answer:
1 month i believe sorry if im wrong
Explanation:
Which properties describe all matter? A. being able to be seen in nature B. having energy and temperature C. having mass and taking up space
Answer:
C. having mass and taking up space
good luck, i hope this helps :)
What is the charge and size of electrons? *
Answer:
small size and negative
what is the smallest unit of NaCl?
Answer:
A molecule of Nacl
Maybe
____ NaF + ____ Br2 à ____ NaBr + ____ F2
A. ---, 2, 2, ---
B. 2, ---, ---, 2
C. 2, ---, 2, ---
Answer:
2 NaF + Br2 --> 2NaBr + F2
Explanation:
Well first I notice that there are two flourines on the products side so we need to put a 2 of NaF. Now there are 2 sodiums on the products side so we have to put another two in front of NaBr.
2 NaF + Br2 --> 2NaBr + F2
can someone help me?
Answer:
Explanation:
c
¿Cuántos moles de bióxido de Nitrógeno (NO 2) se forman cuando reaccionan 5 moles de Nitrógeno (N 2)?
Answer:
10 moles de NO2
Explanation:
Tenemos la ecuación de la reacción como sigue;
N2 (g) + 2 O2 (g) → 2 NO2 (g)
Asi que;
Si 1 mol de nitrógeno produce 2 moles de NO2
5 moles de nitrógeno producirán 5 * 2/1 = 10
Por tanto, se producen 10 moles de NO2 moles
3. How many atoms are in 85 moles H2O?
Answer:
5.119 *10^25
Explanation:
1 mole = 6.022 * 10^23
[tex]\frac{85 mol H20}{1} =\frac{6.022*10^2^3}{1 mol H20}[/tex]
the moles cancel out so you get
85 * (6.022*10^23)
Plug that into the calculator so you get:
5.119 *10^25
if a substance has a mass of 8 grams what is its volume
what can you infer about a wave with a short wave leagth
Answer:
It has a high frequency
Explanation:
How many atoms are there in molecule of glucose (CH12O6)
Answer:
One molecule of glucose has 6 atoms, as you can see in carbon's index. ( C6 ). In 20 molecules there will be 6⋅20 carbon atoms.
Explanation:
A gas at a pressure of 360 torrs and a volume of 750 ml. If the pressure becomes 1.5 atm what is the new volume?
Answer:
V₂ = 236.84 mL
Explanation:
The relation between pressure and volume is inverse.
We can write it as follows :
[tex]P_1V_1=P_2V_2[/tex]
We have,
P₁ = 360 torrs, V₁ = 750 mL, P₂ = 1.5 atm = 1140 torr.
So,
[tex]V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{360\times 750}{1140}\\\\V_2=236.84\ mL[/tex]
So, the new volume of the gas is 236.84 mL.
The least polar bond is found in a molecule of hi hf hcl hbr
Answer:
HI is least polar
Explanation:
Draw a molecule of ammonia showing the covalent bonds, with
outer-shell electrons only on the atoms.
Answer:
Explained below
Explanation:
Formula for Ammonia is NH3
Now, Nitrogen has 5 electrons in it's outermost shell while hydrogen has only 1 electron.
Thus means that nitrogen needs three more electrons to add to it's five to complete it's octet shell.
Whereas each hydrogen atom will need one extra electron to complete 2 electrons in it's outermost shell.
As depicted in the image attached, Each atom will now have a complete valence shell since the three
Hydrogen(H) atoms share their electrons thereby forming covalent bonds with one Nitrogen(N) atom.
how is carbon dioxide collected in laboratory
Answer:
Carbon dioxide is produced whenever an acid reacts with a carbonate. This makes carbon dioxide easy to make in the laboratory.
How many molecules of CO2 are in 8.6 mol of CO2?
Answer: You’d have to convert from mol to molecule.
Explanation: Like this:
Balance the following equation (separate your answers with commas):
____AgNO3 + ____Cu --> ___Cu(NO3)2 + ____Ag
Which block do you think will slide down the ramp most quickly?
Rubber block
Or
Steel block
Please explain why
How many grams of AICI: are needed to produce 150 grams of NaCl?
Answer:
18.7g
Explanation:
what is the other term used to describe tropical cyclone when it is formed in the northwestern part of the pacific ocean
Answer:
Typhoons
Explanation:
A tropical cyclone is a word that is used by meteorologists to explain a rotating, organized system of clouds & thunderstorms that take their origins over tropical or subtropical waters and also possess closed but low-level circulation.
Now, In the Northwest part of the Pacific ocean, these tropical cyclones which are west of the dateline are referred to as Typhoons while In the southwest Pacific and in the Indian Ocean they are called Cyclones. Lastly, those that form over the Atlantic Ocean or eastern Pacific Ocean are referred to as hurricanes