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Vladimir [108]
3 years ago
11

NEED HELP!!!

Chemistry
1 answer:
Vilka [71]3 years ago
6 0

Answer:

1.atomic number

2.electron

3.element

4.atom

5.neutron

6.nucleus

7.proton

Explanation:

please like and Mark as brainliest

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3 0
3 years ago
If you are given 608 grams of calcium phosphate Ca3(PO4)2, how many moles would you have? *
Anika [276]

Answer:

You would have 1.96 moles.

Explanation:

You are given 608 grams of calcium phosphate Ca₃(PO₄)₂.

Molar mass (M) is the amount of mass that a substance contains in one mole. This substance can be an element or a compound.

Since the molar mass of the compound Ca₃(PO₄)₂ is 310 g / mole, and taking into account the definition of molar mass, you can apply the following rule of three: if 310 grams of Ca₃(PO₄)₂ are contained in 1 mole, 608 grams of the compound in how many moles are present?

moles=\frac{608 grams* 1 mole}{310 grams}

moles= 1.96

<u><em>You would have 1.96 moles.</em></u>

6 0
3 years ago
A loaded coal wagon with a total mass of 20 000 kg is pushed by a force of 300 000 N. What was the wagon’s acceleration?
AlexFokin [52]

Answer:

<h2>15 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{300000}{20000}  =  \frac{30}{2}  \\

We have the final answer as

<h3>15 m/s²</h3>

Hope this helps you

5 0
3 years ago
What would cause the different liquids to have different density
Maksim231197 [3]
The masses of the liquids are different making them have different densities
3 0
3 years ago
Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements
disa [49]
She will use the periodic table of elements to not only find out the chemical symbols of the elements written within the name, but also to check whether or not the elements are metals and or nonmetals, from this determine the ionic charges if needed for metals, and for metals that have more than one ionic charge, use a Roman numeral to represent the ionic charge that she would be using in writing the chemical formula of the compound.
5 0
4 years ago
Read 2 more answers
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