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
BartSMP [9]
2 years ago
8

The atomic number of a metal is... A. 10 B. 11 C. 14 D. 20

Chemistry
2 answers:
kiruha [24]2 years ago
6 0
The atomic number of a metal is A. 10
Lilit [14]2 years ago
3 0
Your closes answer would be a.10
You might be interested in
PLEASE HELP
garik1379 [7]
1. She would want a balanced force so she doesn't fall but, well, keep her balance.
2. Frictional force because when an object slows down it's because a higher amount of friction is acting on it.
3. It would be magnitude and direction because is like the size of the object and they need to know how much force it will take to move it.
4. Is the same as 3...
5. A push and a pull are a force. 

I hope this helps!

4 0
3 years ago
Read 2 more answers
Balance this chemical equation.
Vadim26 [7]

Answer:

Explanation:

Reaction Given

    NaHCO₃ (s) + HC₂H₃O₂ (aq) -------> CO₂ (g) + H₂O (l) + NaC₂H₃O₂ (aq)

Balance Equation = ?

Solution:

Balance Chemical Equation:

A balanced chemical equation is that in which the number of the reactant atoms equal to the number of the product atom.

For example if the carbon at the reactant side is 3, the number of carbon must be 3 on the product side.

Check the chemical equation and count the number of atoms at the reactant side and product side.

If the number of atoms of the reactants equal to the number of atoms of products then the reaction is balanced but if not equal then reaction is not balanced

Balancing is an trial and error process to get a balance reaction.

First we count the number of atoms of reactant and product

Number of atoms of Reactant:

Na = 1

O = 5

H = 5

C = 3

Number of atoms of Product:

Na = 1

O = 5

H = 5

C = 3

So this a balance equation as the atoms of the reactant atom equal to the number of the product atoms.

Na atom is 1 on both reactant and product side

Oxygen atoms are 5 on reactant and 5 on product side

hydrogen atoms are 5 on reactant and 5 on product side

Carbon atoms are 3 on reactant and 3 on product side

So all the compounds in the reaction have 1 as its coefficient in the blanks

<u />

<u>1   </u>NaHCO₃ (s) +  <u>1  </u>HC₂H₃O₂ (aq) -----> <u>1  </u>CO₂ (g) + <u>1  </u>H₂O (l) + <u>1  Na</u>C₂H₃O₂ (aq)

7 0
3 years ago
an element has atomic number and mass number 13 and 27 respectively. what are the number of electrons protons and neutrons in on
vfiekz [6]

Answer:

the number of electrons is 13 and neutrons is 14

3 0
3 years ago
11. What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are
photoshop1234 [79]

Answer:  1.284M NH3

Explanation:  (12.23 grams)/(17.0 gramms/mole) = 0.7191 moles

Dissolved in 560.0 ml (=0.5600L)

(0.7191 moles)/(0.560L) = 1.284M  (4 sig figs)

5 0
3 years ago
A rock displaces 1,500 mL of water. The volume of the rock is
Schach [20]
1500 cm^3 ; 1 mL equals 1 cm^3
3 0
3 years ago
Read 2 more answers
Other questions:
  • You are attempting to collect pure hydrogen gas by reacting hydrochloric acid with zinc. Based on the amount of reactants you us
    14·1 answer
  • the atom is made of 3 subatomic particles. the subatomic particle found in the nucleus with a positive charge is the ___________
    8·2 answers
  • When working with scientific data, the average of a data set is called the
    14·1 answer
  • A commercial oven with a book value of $67,000 has an estimated remaining 5 year life. A proposal is offered to sell the oven fo
    13·1 answer
  • What are 6 types of energies except Potential and Kinetic energy.
    9·1 answer
  • Como transformar -80°K a °C​
    8·1 answer
  • Is radium usually considered as part of the alkaline earth category in terms of chemistry?
    9·1 answer
  • Caleb is an inventor who has designed a new kind of fishing net. He is looking for a strong, flexible material that can be used
    10·2 answers
  • Give the name of one or more polysaccharides that matches each of the following descriptions:
    15·1 answer
  • Determine if the following two structures are identical, isomers, or unrelated? OH O CH3CHCH2CH3 CH3CH2CCH3
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!