Which would cause a hazard when working with chemicals in laboratory?

1 answer:

6 0

Hey there,
The answer is A, touching a chemical.
You need to wear gloves and safety googles when handling chemicals to prevent any hazards.

Hope this helps :))

<em>~Top♥</em>

You might be interested in

The amount of 217 mg of an isotope is given by A(t) = 217 € -0.0171, where t is time in years since the initial amount of 217 mg

Maru [420]

The amount left after 20 years = 154.15 mg

<h3>Further explanation </h3>

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.

Usually radioactive elements have an unstable atomic nucleus.

The main particles are emitted by radioactive elements so that they generally decay are alpha (α), beta (β) and gamma (γ) particles

The decay formula for isotope :

$\tt \large{\boxed{\bold{A(t)=217e^{-0.0171t}}}$

Then for t=20 years, the amount left :

$\tt A(t)=217e^{-0.0171\times 20}\\\\A(t)=154.15~mg$

4 0

3 years ago

Read 2 more answers

What type of solution has the capacity to dissolve more solute?

AfilCa [17]

Answer:

The answer to this is

Unsaturated solution

Explanation:

An unsaturated solution has the property of having a solute concentration lower than the the solubility at equilibrium at a given temperature hence it has the capacity to dissolve more solutes. Is is a solution containing a lower amount of solute than a saturated solution

The two processes that occur on dissolving a solute in a solvent are dissolution and crystallization and in an unsaturated solution the rate of dissolution is greater than the rate of crystallization

5 0

3 years ago

what's the density of an element if a sample has a mass of 43.2 g and a volume of 96.5 mL. (0.45 g/mL)

lisov135 [29]

To find the answer you need to use the formula that will help you to find the density. Density = mass/volume
d = 43.2g/96.5mL = 0.45g/mL

7 0

2 years ago

What is the amount of space that a gas takes up called?

trasher [3.6K]

The answer is:Matter

5 0

2 years ago

The smith family uses more energy in the summer than the winter what is a good explanation for this?

DENIUS [597]

They use fans and air conditioning in the summer because its hot, which means they use energy and in the winter, there is no need because its cold so less energy.

6 0

3 years ago

Read 2 more answers