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
Ugo [173]
3 years ago
6

On the periodic table, calcium is in group 2. What is true about calcium?

Chemistry
1 answer:
Ray Of Light [21]3 years ago
6 0

Answer:

Explanation:

Calcium is all around us. The average human contains approximately 1kg of calcium, of which 99% is stored in our bones. It is the 5th most abundant element in the earth's crust, occurring widely as calcium carbonate which is more commonly known as limestone. It is also the fifth most abundant dissolved ion in seawater.

You might be interested in
#3. How does a fever aid an immune response?
UNO [17]

Answer:

it can tell and show what pathogen is in you as well what type and mutation so then your body can fight back and remember the genetic dna so then you will be immune in some way.

Explanation:

8 0
3 years ago
Read 2 more answers
HI, I need help my my edg. Can you help me? I will give crown.<br> :D
ahrayia [7]

Answer:

Most liking the puck will go flying because of the force of the hockey stick.

8 0
3 years ago
Which choice is an example of an endothermic process?
77julia77 [94]

Answer: conversion of ice to steam

Explanation: Endothermic process is one in which energy is absorbed by the system.

Conversion of ice to steam is change of solid phase to gaseous phase, thus energy is required to break the strong inter molecular forces of attraction in solids to convert it into gaseous phase.

Conversion of steam to ice, conversion of steam to water  and conversion of water to ice releases energy and are examples of exothermic processes.

7 0
3 years ago
Convert the following into balanced equations:
sesenic [268]

Gallium metal is heated in oxygen gas, it melts and forms solid gallium(III) oxide.

             Ga + O₂⇒   Ga O₂

Balance the atoms with simple - whole coefficients.

4 Ga + 3 O₂   2 Ga₂O₃.

Specify the states of matter.

4 Ga(s)  + 3 O₂ (g) ⇒   2 Ga₂O₃.(s)

Therefore, balanced equation is----- 4 Ga(s)  + 3 O₂ (g)  ⇒ 2 Ga₂O₃.(s)

What is the balanced formula equation?

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

Why are equations balanced?

A balanced equation obeys the Law of Conservation of Mass. This is an important guiding principal in science. Finally, a balanced equation lets up predict the amount of reactants needed and the amount of products formed.

Learn more about balanced equation:

brainly.com/question/11904811

#SPJ4

4 0
2 years ago
A solution has a [OH−] of 1 x 10−12. What is the pOH of this solution?<br> 2<br> 7<br> 10<br> 12
strojnjashka [21]
-log (1×10^-12) is how you calculate the pOH which in this case is 12
7 0
3 years ago
Read 2 more answers
Other questions:
  • Atoms of which element can bond to each other to form chains, rings, and networks?
    13·1 answer
  • Which pair of elements can form an ionic compound? A) Two atoms of hydrogen B) One atom of sodium and one atom of fluorine C) On
    7·2 answers
  • What happens when organisms decompose, what happens to carbon
    14·1 answer
  • The vocabulary terms MASS and WEIGHT have the same meaning, they both mean the amount of matter in an object true or false
    6·1 answer
  • Backpackers often use canisters of white gas to fuel a cooking stove’s burner. If one canister contains 1.45 L of white gas, and
    13·1 answer
  • You have a different rock with a volume of 30cm and a mass of 60g, What is its density?
    15·1 answer
  • For this question use the main assumptions of the Kinetic Molecular Theory of gases: 1. Gases are made up of molecules which are
    12·1 answer
  • 20 POINTS!!!
    10·1 answer
  • Which description best matches Democritus idea of the atom?
    12·1 answer
  • F2(g)+2Br(aq)=Br(t)+F(aq)<br> which species is redused?<br> a)F<br> b)Br<br> c)F2<br> d)Br2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!