1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alenkasestr [34]
3 years ago
10

Please answer, I don't want to waste more points. ¿What's the answer to this Periodic Table question?

Chemistry
1 answer:
Pie3 years ago
5 0

Answer:

sorry!!!

Explanation:

its to small I can't see it

You might be interested in
A compound decomposes by a first-order process. What is the half-life of the compound if 25.0% of the compound decomposes in 60.
amid [387]

Answer : The half-life of the compound is, 145 years.

Explanation :

First we have to calculate the rate constant.

Expression for rate law for first order kinetics is given by:

k=\frac{2.303}{t}\log\frac{a}{a-x}

where,

k = rate constant  = ?

t = time passed by the sample  = 60.0 min

a = let initial amount of the reactant  = 100 g

a - x = amount left after decay process = 100 - 25 = 75 g

Now put all the given values in above equation, we get

k=\frac{2.303}{60.0}\log\frac{100g}{75g}

k=4.79\times 10^{-3}\text{ years}^{-1}

Now we have to calculate the half-life of the compound.

k=\frac{0.693}{t_{1/2}}

4.79\times 10^{-3}\text{ years}^{-1}=\frac{0.693}{t_{1/2}}

t_{1/2}=144.676\text{ years}\approx 145\text{ years}

Therefore, the half-life of the compound is, 145 years.

8 0
4 years ago
Within a single molecule of water, two hydrogen bonds are bonded to a single oxygen atom by_______.However when there are multip
Gnesinka [82]

Answer:

covalent bonding, hydrogen bonding

Explanation:

<u>The molecular formula of water is H_2O in which the two hydrogen atoms are connected to the oxygen atom via covalent bonds which means that the electrons are shared in the bond.</u>

Hydrogen bonding is a special type of the dipole-dipole interaction and it occurs between hydrogen atom that is bonded to highly electronegative atom which is either fluorine, oxygen or nitrogen atom.

Partially positive end of the hydrogen atom is attracted to partially negative end of these atoms which is present in another molecule. It is strong force of attraction between the molecules.

<u>Thus, when multiple water molecules are there, there are connected by hydrogen bonding.</u>

8 0
3 years ago
Read 2 more answers
What volume (in liters) does 4.76 moles of xenon occupy at STP?
Leya [2.2K]
1 mole of any gas under STP has volume =22.4 L

4.76 mol*22.4 L/1 mol ≈ 107 L
4 0
3 years ago
Read 2 more answers
How many valence electrons do the alkaline earth metals have?
fenix001 [56]

Answer:

\boxed{2}

Explanation:

Alkaline earth metals are in group 2. The number of valence electrons of elements in group 2 is 2.

5 0
4 years ago
Read 2 more answers
You are doing math homework and get frustrated and throw the 7 kg book with a force of 47
Free_Kalibri [48]

Answer:

<h3>The answer is 6.71 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{47}{7}  \\  = 6.714285...

We have the final answer as

<h3>6.71 m/s²</h3>

Hope this helps you

4 0
3 years ago
Other questions:
  • What is the formula for copper oxide and carbon
    5·1 answer
  • Determine the number of neutrons in an atom U-233.
    13·2 answers
  • According to the law of conservation of momentum, which statement is true
    14·1 answer
  • What is condensation ​
    5·2 answers
  • 2.<br> Reflect polygon P using line l.<br> P
    8·1 answer
  • When molten material hardens and cools, what type of rock is formed?
    15·1 answer
  • If you have 20.8 grams of zinc (Zn), how many moles of zinc do you have?
    15·1 answer
  • You took a can of soda out of the refrigerator. After holding the can for a minute, how does your hand feel? Explain what happen
    8·1 answer
  • Please help!! just need the answer for the first one!
    6·1 answer
  • If these four ingredients are combined together to make a pancake then what is the total mass of the mixture before turning on t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!