All categories

3 years ago

SOME ONE HELP ME ON THIS WEBSITE

Chemistry

1 answer:

Sergio039 [100]3 years ago

4 0

Every cell has a nucleus unless it is RNA which is involved with DNA movement

You might be interested in

MARKING BRAINLIEST!

Marina CMI [18]

Answer:

Explanation:

The velocity is basically the speed + the direction of an object put into one quantity, <em><u>velocity</u></em>.

hope this helps, if not see me in the comments...

HOPE THIS HELPS BRAINLIEST PLZZ

4 0

3 years ago

TRUE OR FALSE

lesantik [10]

It depends on what unit/subject you're looking at.

Because in physics, I know that if you are considering Newton's theory of particles, all particles technically go in a straight line from the original direction. BUT, if you're looking at the Wave of the Particle theory, then you would assume that particles do not necessarily follow the above b/c they follow the properties of a wave...

3 0

3 years ago

Is a millimeter smaller than a centimeter

dangina [55]

Answer:

yes, it is a tenth of a centimeter

Explanation:

5 0

3 years ago

Read 2 more answers

The heat of a reaction may be found with the equation q=mcΔT.

sweet-ann [11.9K]

Answer:

B) -1551 kJ

Explanation:

There are two heat flows in this question.

Heat released by engine + heat absorbed by water = 0

q₁ + q₂ = 0

q₁ + mCΔT = 0

Data:

m = 2.51 kg

C = 3.41 J°C⁻¹g⁻¹

T_i = 23.8 °C

T_f =205 °C

Calculations:

(a) ΔT

ΔT = 205 °C - 23.8 °C = 181.2 °C

(b) q₂

q₂ = mCΔT = 2510 g × 3.41 J·°C⁻¹g⁻¹ × 181.2 °C = 1.551× 10⁶ J = 1551 kJ

(c) q₁

q₁ + 1551 kJ = 0

q₁ = -1551 kJ

4 0

3 years ago

How many grams in total of potassium dichromate are there in a 250 mL bottle filled with 5 ppm solution of it?

nordsb [41]

The mass of is K2CrO7 in the 250 ml of solution is mathematically given as

x=1.25mg of K2CrO7.

Hence, 250 ml of the solution will contain 1.25mg of K2CrO7

Question Parameters:

The total of potassium dichromate are there in a 250 mL bottle filled with 5 ppm solution

Generally the mass of k2CrO7 is mathematically given as

$x=\frac{5mg of k2CrO7 *250ml of solution}{1000ml of solution}$

x=1.25mg of K2CrO7

Therefore,

250 ml of the solution will contain 1.25mg of K2CrO7

For more information on chemical Reaction

brainly.com/question/11231920

5 0

2 years ago