All categories

3 years ago

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

Chemistry

1 answer:

MissTica3 years ago

4 0

Yes this is true good job

You might be interested in

Which of the following equations has the correct products and is balanced correctly for a reaction between Na3PO4 and KOH?

ASHA 777 [7]

The answer is: A) Na3PO4 + 3KOH → 3NaOH + K3PO4, because K retains the same charge throughout the reaction.

This chemical reaction is double displacement reaction - cations (K⁺ and Na⁺) and anions (PO₄³⁻⁻ and OH⁻) of the two reactants switch places and form two new compounds.

Na₃PO₄ is sodium phosphate.

KOH is potassium hydroxide.

NaOH is sodium hydroxide.

K₃PO₄ is potassium phosphate.

According to the mass conservation law, there are same number of atoms on both side of balanced chemical reaction.

5 0

3 years ago

What does the Atomic Number tell you? the amounr of electronstprorons

tankabanditka [31]

Answer

Atomic number or proton number tells us the number of protons found in the nucleus of every atom of that element

Explanation:

6 0

3 years ago

Determine the formula of chromic acid.

Katyanochek1 [597]

<u>Answer:</u> The formula of chromic acid is $H_2CrO_4$

<u>Explanation:</u>

We are given an ionic compound named as chromic acid. This acid is formed by the combination of hydrogen ion and chromate ion.

An acid is defined as the substance which releases hydrogen ion when dissolved in water.

Hydrogen is the 1st element of periodic table having electronic configuration of $1s^1$ .

This element will loose 1 electron to form $H^{+}$ ion.

Chromate ion is a polyatomic ion having chemical formula of $CrO_4^{2-}$

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the chemical formula for the given compound is $H_2CrO_4$

Thus, the formula of chromic acid is $H_2CrO_4$

8 0

3 years ago

State the physical property that makes it possible to separate a solution by distillation

Oksi-84 [34.3K]

Boiling point of the fragments, for example Ethanol is 78 degrees C, and water is 100.

8 0

3 years ago

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL

Sergio [31]

Answer:

1.07ML

Explanation:

7 0

3 years ago

Read 2 more answers