Question 1

Chemistry

1 answer:

prohojiy [21]3 years ago

4 0

Humans knowingly create environmental disasters?

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Help please

aleksklad [387]

C. The number of neutrons
Since Carbon 12 has 6 neutrons
And carbon 13 has 7 neutrons.
You know that elements have equal protons (atomic number) and electrons

5 0

2 years ago

Can u make slime with takyglue,shavingcreame,Landry deterget mixed with baby oil,water

ss7ja [257]

The answer is yes, it works very well but it will b a very foamy sline bc of shaving cream

6 0

3 years ago

Read 2 more answers

What is the mass, in grams, of 1.15 mol of water, H2O?

garri49 [273]

M = n x Mr

Mr of H20 - 18.006

M = 1.15mol x 18.006g/mol
= 20.7069g
= 20.7g (3sfg)

8 0

3 years ago

Use the law of conservation of mass to answer the questions.

irinina [24]

Answer:

$\boxed {\boxed {\sf 28 \ grams}}$

Explanation:

The Law of Conservation of Mass states that mass cannot be created or destroyed.

In terms of a chemical reaction, the mass of the reactants has to equal the mass of the products.

The reactants are A and B. The mass of A is 19 grams and the mass of B is 24 grams. Add the masses.

19 g + 24 g= 43 g

This is the mass of the reactants.

The products and C and D. The mass of C is 15 grams. The mass of the products has to equal the mass of the reactants, which is 43 grams. Subtract 15 from 43 to find D's mass.

43 g - 15 g= 28 g

28 grams of D will be produced.

5 0

3 years ago

Which polyatomic ion has a charge of 3-?

skad [1K]

Most of the common inorganic polyatomic ions have negative charges. This means the ion has more electrons than the neutral atoms that are in the ion. A polyatomic ion like phosphate, PO43- has three extra electrons beyond the electrons on the P and O atoms. Got this off google sorry if it doesn't help you :(

6 0

3 years ago