3 years ago

What is the mass number of 80Br

Chemistry

1 answer:

Amanda [17]3 years ago

4 0

Mass number of an element write in bottom of it!

So, there 80 would be the mass number of ₈₀Br.

Hope this helps!

You might be interested in

When part of earths surface is tilted towards the sun what does it cause

Furkat [3]

Summer Solstice is what happens when part of the Earth's surface is tilted towards the sun..

7 0

3 years ago

Read 2 more answers

Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→C

GREYUIT [131]

Answer:

$m=8.79kg$

Explanation:

First of all we need to calculate the heat that the water in the cooler is able to release:

$Q=\rho * V*Cp*\Delta T$

Where:

Cp is the mass heat capacity of water
V is the volume
$\rho$ is the density

$Q=1 g/cm^3 *15000 cm^3*4.184 \frac{J}{g*^{\circ}C}*(10-90)^{\circ}C$

$Q=-5020800 J=-5020.8 kJ$

To calculate the mass of CO2 that sublimes:

$-Q=\Delta H_{sub}*m$

Knowing that the enthalpy of sublimation for the CO2 is: $\Delta H_{sub}=571 kJ/kg$

$5020.8 kJ=571 kJ/kg*m$

$m=\frac{5020.8 kJ}{571 kJ/kg}=8.79kg$

6 0

2 years ago

idk which to have chocolate milk or a homemade milkshake can anyone help me and pick which one i should make

Anastaziya [24]

Homemade milkshake(banana&strawberry)

6 0

3 years ago

Calculate the mass percent of copper in cus, copper(ii) sulfide. if you wish to obtain 10.0g of copper metal from copper(ii) sul

Aleksandr [31]

Using the relative atomic weights of both copper and sulfur ie copper = 63.55 and sulfur is 32.06 so 63.55+32.06=95.56 total mass and so of this, copper = 63.55/95.56=66.4%. So to get 10 grams of copper, use the formula 10g=66.4%xCuS so CuS=10/0.664=15.06 grams of CuS.

4 0

3 years ago

Which chemical out of the following 4 is the most dangerous? Glucose, benzene,acetone, ether

Lelechka [254]

Answer:

Explanation: hope this helps

Benzene

5 0

1 year ago