The same kind of molecules have the same chemical properties,

The same kind of molecules have the same chemical properties,

The same kind of molecules have the same chemical properties,
Because we think of the same chemical substance as the same substance
The physical properties of the same molecule are not necessarily the same
Such as state, particle size, etc

What is the relationship between air density and sound speed? Why?
I don't understand physics,
Please explain why

The higher the density of air, the faster the speed of sound

The solution of square of log2 (x + 1) + square of log4 (x + 1) = 5

log4[(x+1)^2]=log2[(x+1)^2]/log2(4)=log2[(x+1)^2]/2
The original equation is: log2 (x + 1) ^ 2 + 1 / 2log2 (x + 1) ^ 2 = 5
3/2log2(x+1)^2=5
log2(x+1)^2=10/3
(x+1)^2=2^(10/3)
x+1=(+/-)2^(5/3)
x1=-1+2^(5/3)
x2=-1-2^(5/3)

The sum of 36 percent and 9 percent of a number is 315?

315÷（36%+9%）
=315÷45%
=700
A: the number is 700
I hope my answer will help you

C language calculates the sum of odd and even numbers in positive integers 1 ~ 100

Int sum1, sum2, I; / / sum1 odd sum, sum2 even sum
sum1 = 0;
for( i=1; i

An elementary mathematics one variable inequality application problem
During the summer vacation, the principal of a school will lead the outstanding students of the school to take the bus of the travel agency to a city to attend the science and technology summer camp. Travel agency a said, "if the principal buys a full ticket, the rest of the students can enjoy half price discount." travel agency B said, "including the principal, all the students will get a 60% discount on the full ticket". If the full ticket price is 240 yuan, which travel agency should we choose according to the number of students?
There are x excellent students in this school
If x ＞ 0, then
If. If
There are x excellent students in this school
The teacher asked to use the method of difference to solve
If. If

The equation: 0.6 * (x + 1) * 240 = 240 * (1 + 0.5x)
The result is: x = 4
So: if: x4, choose B
If x = 4, both a and B are the same

The reduction ratio of 0.6:5 / 12

1：4

Which is the common test method of sequence summation? I'm Jiangxi science! Dislocation subtraction ~ split term summation ~ reverse order addition ~ generally which test is more?

This uncertainty, you'd better master the law, the purpose of the examination is to let you master more knowledge

Let the coordinates of the intersection point of the image of the function y = 1 / X and y = X-2 be (a, b), then the value of 1 / A-1 / B is?

If the intersection of functions y = 1 / X and y = X-2 is (a, b), then (a, b) is on the image of two functions, that is
B = 1 / A, B = A-2. The deformation is ab = 1, B-A = - 2
1 / A-1 / b = (B-A) / AB = - 2 / 1 = - 2

How to find the greatest common factor of two numbers by short division, why?

Divide by short division until the remaining number has no factor other than 1. Multiply them (excluding the remaining number)