Answers: Balance the following chemical equations

Questions-

a. CO2 + H2O — — -> C6H12O6 + O2.

b. SiCl4 + H2O — — → H4SiO4 + HCl.

c. Al + HCl — — → AlCl3 + H2.

10th SSC- Science

1. Science 2. Meiosis

The link given gives you a revision of mitosis plus also has meiosis along with their significance. The slides also give a clear picture of the key words so pay attention to those words while understanding the process.

Periodic classification of elements

1. Introduction-

Chemical changes and reactions

1. Chemical equations-

* Linear Equations in two variables

• Meaning: Equation with degree one and in terms of two variables

Answers to the first series of questions-

1. Chemical reactions and changes

Linear equations in two variables (Day 5)

Solutions of practice sums

1) 148x + 231y = 527 — — —(1)

231x + 148y = 610 — — —(2)

Add equations (1) and (2)

148x + 231y = 527

Quadratic Equation: Part-2

Methods of solving Quadratic Equation:
There are three methods of solving Quadratic Equation namely:
1) Factorization method
2) Completing square method
3) Formula method

Quadratic Equations: Part-1

Defination:
We have studied various types of polynomials. A polynomial with degree 2 is called as Quadratic Equation. A Quadratic equation in the variable x is an equation of the form ax2 + bx + c =0, where a, b, c are real numbers , a is not 0. Example: 2 x2 + x-300=0.
Standard…

Carbon compounds or Organic compounds

Introductory topic-