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RideAnS [48]
3 years ago
7

How many grams would 6.02 x 10^23 atoms of Ca be?

Chemistry
2 answers:
Allushta [10]3 years ago
7 0
However, other elements have different molar masses; for example, 6.02 x 1023 sulfur-32 (32S) atoms have a mass together of 31.97 grams, which is 32S's molar mass.
schepotkina [342]3 years ago
3 0

Answer:

sorry I just need points

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What is known as the amount of<br> mass in a given volume?
Ganezh [65]

Answer:

Density

Explanation:

Density is a measure of how much mass is contained in a given volume

3 0
3 years ago
What three ways a bicyclist can change velocity?
madam [21]

Answer:

There are three ways an object can accelerate

Explanation:

a change in velocity, a change in direction, or a change in both velocity and direction.

3 0
4 years ago
Estimate ΔH for the reaction: C2H6(g) + Cl2(g)--&gt; C2H5Cl(g) + HCl(g) given the following average bond energies (in kJ/mol): C
Leno4ka [110]

Explanation:

The reaction equation will be as follows.

    C_{2}H_{6}(g) + Cl_{2}(g) \rightarrow C_{2}H_{5}Cl(g) + HCl(g)

Using bond energies, expression for calculating the value of \Delta H is as follows.

    \Delta H = \sum B.E_{reactants} - \sum B.E_{products}

On reactant side, from C_{2}H_{6} number of bonds are as follows.

C-C bonds = 1

C-H bonds = 6

From Cl_{2}; Cl-Cl bonds = 1

On product side, from C_{2}H_{5}Cl number of bonds are as follows.

C-C bonds = 1

C-H bonds = 5

C-Cl bonds = 1

From HCl; H-Cl bonds = 1

Hence, using the bond energies we will calculate the enthalpy of reaction as follows.

  \Delta H = \sum B.E_{reactants} - \sum B.E_{products}

  =[(1 \times 348 kJ/mol) + (6 \times 414 kJ/mol) + (1 \times 242 kJ/mol)] - [(1 \times 348 kJ/mol) + (5 \times 414 kJ/mol) + (1 \times 327 kJ/mol) + (1 \times 431 kJ/mol)]            = -102 kJ/mol

Thus, we can conclude that change in enthalpy for the given reaction is -102 kJ/mol.

5 0
3 years ago
Explain how the design of a two-tier ditch helps control farm pollution.
Cerrena [4.2K]

Answer:

Plants and soil microbes at that level help trap soils and catch nutrients, such as phosphorus and nitrate. The design also slows water flow under most conditions Compared to a trapezoidal ditch upstream, the two-stage ditch has clearer water flowing out. That means less soil is flowing away.

Explanation:

brainliest pls

4 0
3 years ago
Read 2 more answers
Help with chemistry
Cerrena [4.2K]

if a substance loose electrons, then it is called oxidation and if a substance gain electrons, then it is called reduction.

Note:

LEO GER=Loose Electron Oxidation Gain Electron Reduction.

6 0
4 years ago
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