All categories

3 years ago

Help please I need help with these two questions answer truthfully get brainliest?!!

Chemistry

2 answers:

irina1246 [14]3 years ago

5 0

Answer:

1. 3x-3=18

Value of x=7

2. 4x-5=23

value of x=7

My name is Ann [436]3 years ago

5 0

Answer:

b 7 for one

a 3 for two

Explanation:

You might be interested in

Conversion .5 km to inches

natta225 [31]

19685 because 1 km in inches is 39370 approximately so you just have to cut it in half

5 0

3 years ago

Read 2 more answers

In your opinion, are scientists born or made? How can everyday people challenge or extend scientific ideas and make scientific

butalik [34]

Answer:

made

Explanation:

scientists are made-

7 0

4 years ago

Please someone help I’m really confused

NARA [144]

Answer:10-3

Explanation:

7 0

3 years ago

A 975 L balloon contains helium. On the ground the temperature is 30 0C and the pressure is 743 torr. What will be the balloon's

Archy [21]

Answer:

V₂ = 1518L

Explanation:

-Using combined gas law:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

<em>Where P is pressure, V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.</em>

<em />

<em>Initial states:</em>

P₁ = 743 torr

V₁ = 975L

T₁ = 30°C + 273.15K = 303.15K

P₂ = 375 mmHg = torr

V₂ = Our incognite

T₂ = -35°C + 273.15K = 238.15K

Replacing:

$\frac{743torr*975L}{303.15K} =\frac{375torrV_2}{238.15K}$

6 0

3 years ago

15 POINTS!!!

lawyer [7]

<em>Answer:</em>

At 60 centigrade, the kinetic energy of the substance will be greatest.

<em>Explanation:</em>

As we know, the kinetic energy of substance is directly proportional to Temperature.

The total Kinetic energy can be calculated as follow

K.E = 3/2 n.R.T

From the equations, it is cleared that Temperature is directly proportional to temperature.

7 0

3 years ago

Read 2 more answers

Help please I need help with these two questions answer truthfully get brainliest?!!​

Help please I need help with these two questions answer truthfully get brainliest?!!